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Hamilton Sundstrand Corporation patents (2016 archive)


Recent patent applications related to Hamilton Sundstrand Corporation. Hamilton Sundstrand Corporation is listed as an Agent/Assignee. Note: Hamilton Sundstrand Corporation may have other listings under different names/spellings. We're not affiliated with Hamilton Sundstrand Corporation, we're just tracking patents.

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "H" | Hamilton Sundstrand Corporation-related inventors


Variable speed constant frequency power generator including permanent magnet exciter

A variable speed constant frequency (vscf) power generator includes a rotating direct current (dc) power source, rotating multi-phase generator main field windings to generate a rotating alternating current (ac) power, and a rotating inverter configured to control alternating current (ac) generator field windings in response to output ac power generated by the vscf power generator and dc power from the rotating dc power source. At least one generator main field sensor outputs a generator main field feedback signal based on the rotating ac power applied to the rotating multi-phase generator main field windings. ... Hamilton Sundstrand Corporation

End winding support for an electric generator

An end winding support for an electric generator includes a pair of winding lead supports formed on opposite sides of a winding slot and separated by an upper slot width. Each of the winding lead supports includes a winding channel routed between a lead coupling port and the winding slot. ... Hamilton Sundstrand Corporation

Power distribution panel connector having thermal management feature

An aircraft power distribution system according to an exemplary aspect of the present disclosure includes, among other things, a power source, a load, and a power distribution panel receiving power from the power source and selectively providing power to the load. The power source is connected to the power panel by a lug having a heat sink portion. ... Hamilton Sundstrand Corporation

Warming feature for aircraft fuel cells

A system and method for warming a fuel cell on an aircraft, the system includes at least one fuel cell. The fuel cell includes an anode and a cathode for creating thermal and electrical energy. ... Hamilton Sundstrand Corporation

Multi-voltage fuel cell

A fuel cell stack has a first end plate, a second end plate, and an internal current collecting plate. A first load is connected to the first end plate and the second end plate. ... Hamilton Sundstrand Corporation

Unlocking mechanism for ram air turbine actuator

An apparatus for unlocking an actuator comprises a first member mounted in a housing for rotation about an axis and having a circumferentially extending surface, a recess being formed in a section of the circumferentially extending surface. A second member for operative connection to a lock release element of an actuator is mounted for movement in a direction generally transverse to the axis of rotation of the first member and has a follower element resiliently biased into contact with the circumferentially extending surface of the first member. ... Hamilton Sundstrand Corporation

Pressure limiters

A bleed valve system includes a flow path defined between a system inlet and a system outlet. A pressure control mechanism is defined in the flow path downstream from the system inlet to selectively block fluid flow in the flow path. ... Hamilton Sundstrand Corporation

Power distribution panel having contactor with thermal management feature

An aircraft power distribution system according to an exemplary aspect of the present disclosure includes, among other things, a power source, a load, and a power distribution panel receiving power from the power source and selectively providing power to the load. The power distribution panel includes a contactor having a housing. ... Hamilton Sundstrand Corporation

High voltage direct current system with improved generator excitation

According to one embodiment of the present invention, a variable frequency generator is provided. The variable frequency generator can comprise a main stator comprising multi-phase armature windings and an exciter field winding; and a rotating portion comprising an exciter multi-phase windings, a main field winding, and an amplification component between the exciter windings and the main field winding, wherein the amplification component operates at a variable duty cycle to maintain a phase voltage of the main stator armature windings near independent of a shaft speed of the variable frequency generator.. ... Hamilton Sundstrand Corporation

Variable threshold current limiting circuit

A current limiting circuit for a motor controller includes a comparator. The comparator has a sensed current input, a current threshold input, and an overcurrent protection trip output. ... Hamilton Sundstrand Corporation

Composites and methods of making composite materials

A method of making a composite material includes disposing a carbon-based particulate material, such as graphene or carbon nanotubes, in an activation solution and activating surfaces of the carbon-based particulate material using the activation solution. Once the surfaces of the carbon-based particulate material have been activated a metallic coating is applied to the activated surfaces to form a composite material. ... Hamilton Sundstrand Corporation

Mini-channell heat exchanger tube sleeve

A heat exchanger tube assembly includes a tube. The tube includes a first end, a second end disposed opposite from the first end, an outer surface, and an inner surface defining an interior space. ... Hamilton Sundstrand Corporation

Flow diverting flapper

A flow diverting valve includes a body having a concave spherical surface, a flange traversing a perimeter of the body, and a hinge connected to the flange and configured to rotate about a pivot axis.. . ... Hamilton Sundstrand Corporation

Piston ring sealing for pneumatic actuator

A piston configuration is provided, the configuration including a piston having a ring seat and a piston ring disposed within the ring seat. The piston ring is configured to form a sealing surface between a surface of the piston ring and a surface of the ring seat. ... Hamilton Sundstrand Corporation

12/22/16 / #20160369745

Actuator control system and method for gas turbine engine

A system for controlling actuators within a gas turbine engine according to an exemplary aspect of the present disclosure includes an electronic engine controller, a plurality of actuators, and a central control unit. The central control unit includes an actuator control unit electrically coupled to the electronic engine controller and a plurality of actuator control modules. ... Hamilton Sundstrand Corporation

12/22/16 / #20160369698

Plate fin heat exchanger

A plate fin heat exchanger is disclosed. The heat exchanger includes a plurality of plates defining a set of hot fluid passages between adjacent plates of the plurality of plates and a set of cold fluid passages between adjacent plates of the plurality of plates. ... Hamilton Sundstrand Corporation

12/22/16 / #20160369696

Multi-flapper check valve without center supports

A multi-flapper check valve includes a housing with an opening surrounded by a ring-shaped rim, a plurality of flappers, and a hinge that connects an end of each flapper to the rim of the housing. When the multi-flapper check valve is in a closed position, a first edge of each flapper seals against a second edge of an adjacent flapper.. ... Hamilton Sundstrand Corporation

12/22/16 / #20160369653

Hydraulic line routing plate

A routing plate assembly is provided and includes a gearbox having an aft surface, first and second hydraulic components, a routing plate comprising a forward side affixable to the aft surface of the gearbox, an aft side to which the first and second hydraulic components are affixable and a body. The body is formed to define interfacial pathways by which the gearbox and the first and second hydraulic components are communicative.. ... Hamilton Sundstrand Corporation

12/15/16 / #20160365814

Variable speed ac generator system including independently controlled rotor field

A variable speed analog current (ac) generator system includes a main generator unit in electrical communication with a rotary transformer. The main generator unit outputs a main output power signal, and the rotary transformer adjusts a frequency of the main output power signal. ... Hamilton Sundstrand Corporation

12/15/16 / #20160363390

Modular heat exchanger design

A cold plate assembly is provided having a base defining a cooling channel and a heat exchanger friction-stir welded to the base, wherein the heat exchanger is located within a portion of the cooling channel, and the friction-stir welding between the heat exchanger and the base forms a fluid seal.. . ... Hamilton Sundstrand Corporation

12/15/16 / #20160363387

Phase-change material heat exchanger

A phase-change material heat exchanger includes a frame configured to define a chamber therein and house a first fluid, the first fluid being water. At least one heat exchange element is configured to have a second fluid pass through an interior of the heat exchange element, the at least one heat exchange element moveably retained within the chamber. ... Hamilton Sundstrand Corporation

12/15/16 / #20160363381

Variable heat rejection using heat pipe heat exchanger

A system according to an exemplary aspect of the present disclosure includes, among other things, a control unit and a heat pipe heat exchanger having a first heat pipe and a second heat pipe. The system also includes a first flow regulator selectively adjustable in response to instructions from the control unit to direct a first flow of fluid over a portion of the first heat pipe. ... Hamilton Sundstrand Corporation

12/15/16 / #20160363233

Piston for pnuematic actuator in high vibration environment

A piston assembly includes a piston with a first cap disposed on a first end of the piston and a second cap disposed on a second end of the piston. A piston cross-member is in between the first cap and the second cap. ... Hamilton Sundstrand Corporation

12/15/16 / #20160363221

High vibration pneumatic piston assembly made from additive manufacturing

A piston assembly includes a piston with a first cap disposed on a first end of the piston and a second cap disposed on a second end of the piston. A piston cross-member is in between the first cap and the second cap. ... Hamilton Sundstrand Corporation

12/15/16 / #20160362769

Particulate for additive manufacturing techniques

A particulate feedstock for an additive manufacturing process includes particles formed from an aluminum base alloy. The alloy includes both aluminum and copper, and the amount of aluminum in the alloy is greater than the amount of copper in the alloy as a percentage of total weight. ... Hamilton Sundstrand Corporation

12/15/16 / #20160362188

Fuel tank inerting apparatus for aircraft

A system includes a first flow path fluidly connecting a first supply to an inerting apparatus. A second flow path connects a second supply to a turbine of a compressor device. ... Hamilton Sundstrand Corporation

12/15/16 / #20160361684

Temperature controlled nitrogen generation system

A nitrogen generation system includes a heat exchanger for receiving supply air and cooling air and providing temperature conditioned supply air, a flow control valve for controlling a flow of the cooling air through the heat exchanger, and an air separation module for receiving the temperature conditioned supply air and generating nitrogen-enriched air. The nitrogen generation system also includes a sensor for measuring a parameter of the nitrogen-enriched air selected from the group consisting of a temperature, a flow rate, an oxygen concentration, and combinations thereof, and a controller connected to the sensor and the flow control valve for controlling the flow of the cooling air through the heat exchanger based on the parameter of the nitrogen-enriched air measured by the sensor.. ... Hamilton Sundstrand Corporation

12/08/16 / #20160360643

System and method of alternate cooling of a liquid cooled motor controller

A motor controller is provided including a motor controller housing an air inlet and an air outlet. A plurality of heat generating elements is disposed within the motor control housing. ... Hamilton Sundstrand Corporation

12/08/16 / #20160356677

Plate-fin heat exchanger fouling identification

A computer-implemented method for designing a built-in test is described. The method includes receiving, via a processor, a subsystem model including system parameters for a heat exchanger, wherein each of the system parameters includes a sensor variance; determining, via the processor, a test design vector based on one or more of the system parameters; and designing, via the processor, the built-in test based on the test design vector.. ... Hamilton Sundstrand Corporation

12/08/16 / #20160356312

Bug roller bearing outer race assembly

A method for replacing a portion of a first outer bearing assembly for a generator with a second outer bearing assembly. The first outer bearing assembly includes a first liner and a first outer bearing race. ... Hamilton Sundstrand Corporation

12/08/16 / #20160356172

Movable vane control system

A movable vane control system is disclosed for use with a gas turbine engine having a turbine axis of rotation. The system includes a plurality of rotatable turbine vanes in a gas flow path within a turbine case of the gas turbine engine. ... Hamilton Sundstrand Corporation

12/08/16 / #20160356167

Turbine seal plate

A turbine seal plate includes an inner rim with a labyrinth seal land that defines a central bore having a labyrinth seal diameter. The turbine seal plate also includes a housing coupling ring arranged radially outward of the inner rim. ... Hamilton Sundstrand Corporation

12/08/16 / #20160355275

Electrical control system

An example aircraft electrical system includes a generator coupled with a gas turbine engine and a controller operable to distribute power of the generator. The controller includes a first control module positioned at a first location remote from the generator and a second control module positioned at a second location proximate the generator. ... Hamilton Sundstrand Corporation

12/08/16 / #20160355271

Hybrid electric

An airplane is provided. The airplane includes a vapor cycle air conditioning system that receives outside air, a bleed system with at least one port, and an electric fan. ... Hamilton Sundstrand Corporation

12/08/16 / #20160355270

No primary heat exchanger and bleed air (cabin discharge air) assist

An airplane is provided. The airplane includes a pressurized compartment and an environmental control system. ... Hamilton Sundstrand Corporation

12/08/16 / #20160355269

Unequal bleed flow

A system is provided. The system includes a first environmental control sub-system, operating in a first mode, that receives a first medium at a first flow amount and a first pressure. ... Hamilton Sundstrand Corporation

12/08/16 / #20160355268

Method for designing an ecs

An airplane is provided. The airplane includes an environmental control system that provides a pressurized medium to a chamber of the airplane. ... Hamilton Sundstrand Corporation

12/08/16 / #20160355267

Recirculation system for parallel ram heat exchangers

A system includes an inlet line configured to receive a medium flowing from a low-pressure location of an engine to a chamber, a plurality of heat exchangers configured to receive the medium from the inlet line, and a valve located upstream from the plurality of heat exchangers. The valve is configured to divide in parallel the medium across at least a first heat exchanger and a second heat exchanger of the plurality of heat exchangers. ... Hamilton Sundstrand Corporation

12/01/16 / #20160352201

Integrated heat dissipative structure for electric machine

An electrical machine is provided including a stator assembly having a stator core and a plurality of windings. A rotor assembly is arranged concentrically with the stator assembly and is configured to rotate about an axis. ... Hamilton Sundstrand Corporation

12/01/16 / #20160349766

Ecology fuel return systems

A shut-off valve system includes a tank having an inlet and an outlet with a flow path defined therebetween. A float within the tank occludes the tank outlet at a first fluid level under positive g forces and unoccludes the tank outlet at a second fluid level under positive g forces. ... Hamilton Sundstrand Corporation

12/01/16 / #20160349184

Microgravity-compatible analysis

A method of analyzing for the presence or concentration of an analyte in a liquid in microgravity is disclosed. The method includes removing a first quantity of the liquid from a first container and passing the removed liquid through a porous pad that includes a reagent that is responsive to the analyte. ... Hamilton Sundstrand Corporation

12/01/16 / #20160348980

Heat exchanger with improved flow at mitered corners

A heat exchanger has a first flow path communicating fluid into a turning flow path at a first mitered interface. The turning flow path has a second mitered interface for communicating fluid from the turning flow path into a return flow path. ... Hamilton Sundstrand Corporation

12/01/16 / #20160348788

Integrated apu generator constant speed drive

An integrated apu-generator constants speed drive system having various features is disclosed. The system may have a gearbox having a differential with a constant speed gearbox output and a hydraulic output controller control shaft. ... Hamilton Sundstrand Corporation

12/01/16 / #20160348781

Gear shroud to passively lubricate gearbox component

A gearbox includes at least two engaged gears, with at least one of the two gears provided with a shroud positioned radially outwardly of the one gear. The shroud extends between circumferential ends which do not fully surround the one gear. ... Hamilton Sundstrand Corporation

12/01/16 / #20160348589

Aircraft engine assembly and method of generating electric energy for an aircraft power system

An aircraft engine assembly includes an engine housing, a low pressure spool disposed within the engine housing, and a high pressure spool disposed within the engine housing. Also included is a flux-switching machine disposed within the engine housing, the flux-switching machine comprising a rotor, a stator, a field winding and an armature winding, the flux-switching machine configured to generate power for the aircraft power system.. ... Hamilton Sundstrand Corporation

12/01/16 / #20160348529

Redundant speed summing actuators

A method and system for use with actuation system to control a plurality of vanes disposed within a turbine engine, wherein a vane position sensor provides a vane position signal corresponding to a vane position of the plurality of vanes, the actuation system includes a plurality of motors engaged in response to the vane position signal, and a differential gearbox having a plurality of inputs operatively coupled to the plurality of motors and an output operatively coupled to the plurality of vanes, wherein an output speed of the output is a sum of a plurality of input speeds of the plurality of inputs.. . ... Hamilton Sundstrand Corporation

12/01/16 / #20160347456

Aircraft environmental control system

An environmental control system (ecs) pack is provided including a primary heat exchanger and a secondary heat exchanger. An air cycle machine is arranged in fluid communication with at least one of the primary and second heat exchanger. ... Hamilton Sundstrand Corporation

11/24/16 / #20160341237

Washer for retaining assembly pin

An assembly includes a first structure having a first pin aperture and at least one first fastener aperture adjacent the first pin aperture and a second structure to attached to the first structure having a second pin aperture and at least one second fastener aperture adjacent the second pin aperture. At least one fastener is configured to pass through the first and second fastener apertures and attach the first structure to the second structure. ... Hamilton Sundstrand Corporation

11/24/16 / #20160341225

Mistake proof ram air turbine downlock protection

An actuator assembly includes a housing, an internal cavity within the housing configured to partially contain a pressurized fluid, a fluid inlet port connecting a first opening on an outer surface of the housing to the internal cavity, a fluid outlet port connecting a second opening on the outer surface of the housing to the internal cavity, and a pressure relief channel having a relief inlet and a relief outlet. The relief outlet is in fluid communication with the internal cavity and a distance between the fluid inlet port and the relief outlet is less than half a distance between the fluid inlet port and fluid outlet port.. ... Hamilton Sundstrand Corporation

11/24/16 / #20160340048

Blended flow air cycle system for environmental control

An environmental control system for an aircraft includes a bleed air system. Also included is a ram air system. ... Hamilton Sundstrand Corporation

11/17/16 / #20160336854

Voltage regulator for inductive loads

A voltage driver includes a voltage input and a voltage regulation controller with an on/off input. The voltage regulation controller is configured to control a switching converter in a first mode and a second mode. ... Hamilton Sundstrand Corporation

11/17/16 / #20160336754

High power solid state switches for aircraft

A high power solid state power controller is provided. The power controller includes a first power bus, a second power bus, and a high power solid state switch unit electrically connected to the first power bus and the second power bus. ... Hamilton Sundstrand Corporation

11/17/16 / #20160334769

Modular generator control and external power unit

A method and system for use with an electric power system includes a monitoring unit to monitor at least one power characteristic, a generator control unit to control at least one generator characteristic, a ground interface unit to receive a ground power input, and a device configuration interface to select at least one of a generator control mode and an external power monitor mode, wherein the device configuration interface selectively engages at least one of the monitoring unit, the generator control unit, and the ground interface unit in response to at least one of the generator control mode and the external power monitor mode.. . ... Hamilton Sundstrand Corporation

11/17/16 / #20160333993

Dual redundant linear actuator

A linear actuator includes a planetary gear system including a sun gear, a ring gear, and a planet carrier. A linear output mechanism is coupled to the planetary gear system. ... Hamilton Sundstrand Corporation

11/17/16 / #20160333742

Rat frame for a soft aircraft interface

A mounting frame for a ram air turbine includes a front support block having a top side opposite a bottom side. A rear support block is disposed opposite the front support block, the rear support block also having a top side, and a bottom side. ... Hamilton Sundstrand Corporation

11/17/16 / #20160332750

Aircraft active history memory module

In one example, a system includes a component of an air management system of an aircraft and an active history memory module attached to the component. The active history memory module includes interface circuitry configured to receive data corresponding to one or more operational parameters of the aircraft. ... Hamilton Sundstrand Corporation

11/17/16 / #20160332744

Rat mounting arrangement for a soft aircraft interface

A ram air turbine (rat) mounting system includes a frame with a forward end having a first side, a second side disposed opposite the first side, a third side, and a fourth side disposed opposite the third side. The frame also includes an aft end. ... Hamilton Sundstrand Corporation

11/10/16 / #20160329765

End winding support and heat sink for liquid-cooled generator

Embodiments of an end winding support and heat sink for a pole of a generator are provided. An aspect includes a flat plate portion, the flat plate portion comprising an internal cooling liquid channel that routes coolant through the flat plate portion. ... Hamilton Sundstrand Corporation

11/10/16 / #20160329726

Rechargeable battery auto-cycler requiring lower power and dissipating reduced waste heat

A battery charger system includes a power supply and a switch connected to the power supply wherein the switch has a first switch half and a second switch half. First and second batteries are selectively connected to the power supply via the switch. ... Hamilton Sundstrand Corporation

11/10/16 / #20160327917

Multi-channel current balancing system including parallel solid-state power controllers

A system balances current flowing through a solid-state power controller system including at least two output channels connected in parallel. The system delivers a first current to a load via a first output channel to a load, and delivers a second current to the load via a second output channel connected in parallel with the first output channel. ... Hamilton Sundstrand Corporation

11/10/16 / #20160327349

Two piece manifold

A manifold for a heat exchanger assembly includes a body with a first end disposed opposite a second end, and a top surface disposed opposite a bottom surface. A first side surface extends between the top and bottom surfaces, and a second side surface extends between the top and bottom surfaces opposite the first side surface. ... Hamilton Sundstrand Corporation

11/10/16 / #20160327204

Anti-rotation bracket

An assembly includes a mounting component having a first surface and a second surface with a hole extending between the first surface and the second surface. The assembly includes a flange extending generally perpendicularly in a first direction from a first end of the mounting component, and a first tab and a second tab extending generally perpendicularly in a second direction from a second end of the mounting component, wherein the first tab and the second tab are spaced apart from each other. ... Hamilton Sundstrand Corporation

11/10/16 / #20160327203

Cross bracket for aircraft cabin air supply system

A compressor cross bracket for use in an air supply system for an aircraft comprises a ledge extending away from a main body. The main body has ends at opposed sides and a ditch defined between the ends. ... Hamilton Sundstrand Corporation

11/10/16 / #20160325840

Compressor mount bracket for aircraft cabin air supply system

A compressor mount bracket has a mount floor extending to be perpendicular to a square side extending away from the mount floor in a first direction. A closure side extends from the mount floor in the first direction. ... Hamilton Sundstrand Corporation

11/10/16 / #20160325661

Flexible lumbar support of aircraft seat

A flexible lumbar support for an aircraft seat includes a frame and flexible seat pad connected thereto for supporting a seat user. At least first and second rods are spaced from each other and the frame, extend across and are secured to the seat pad, and define respectively at least first and second control lines about which the seat pad is rotatable. ... Hamilton Sundstrand Corporation

11/03/16 / #20160322897

Systems and methods for controlling power converters

A non-isolated (transformerless) direct current-to-direct current (dc-dc) power supply includes a voltage converter module that converts dc input voltage having a first voltage level into a dc output having a second voltage level that is less than the first voltage level. An overvoltage protection module interposed between the input voltage source and the input to the dc-dc converter monitors the dc output and removes power from the voltage converter module if the dc output exceeds an overvoltage threshold. ... Hamilton Sundstrand Corporation

11/03/16 / #20160322807

Built-in test circuits for transient voltage protection devices

A transient voltage suppressor device includes a transient voltage suppression circuit, a first voltage monitor lead connected to the transient voltage suppression circuit, and a second voltage monitor lead connected to the transient voltage suppression circuit. A voltage injection circuit having a plurality of output voltage levels is also connected to the transient voltage suppression circuit to provide indication via the first and second voltage monitors if the transient voltage suppression circuit is shorted or open.. ... Hamilton Sundstrand Corporation

10/27/16 / #20160312865

Locking mechanisms for ram air turbines

A locking mechanism for a ram air turbine (rat) includes a base clevis configured to mount to a housing and to have a base link clevis connector portion defining a plurality of base link clevis connector arms and a base link clevis having a base connector portion defining base connector arms that are configure to movably connect to the base link clevis connector arm. The locking mechanism also includes a pin operatively connecting the base connector portion to the base link clevis connector portion in a rotatable relationship and a spring positioned around the pin, wherein a first spring end abuts the base clevis and a second spring end abuts the base link clevis to bias the base link clevis to an unlocked position. ... Hamilton Sundstrand Corporation

10/27/16 / #20160312743

Pneumatic circuit breaker based self resetting passive overspeed control valve for turbine pump assembly

A turbine pump assembly has a turbine, a centrifugal pump, a passive electrical speed control system, and a pneumatic circuit breaker. The pneumatic circuit breaker has a plurality of elements that are configured to move to a position blocking an outlet duct of the turbine when a flow velocity exceeds a predetermined threshold. ... Hamilton Sundstrand Corporation

10/27/16 / #20160312742

Passive electrical proportional turbine speed control system

A turbine pump assembly includes a turbine, a centrifugal pump and a passive electrical speed control system. The passive electrical speed control system has a generator and a valve control solenoid, which receives current from the generator. ... Hamilton Sundstrand Corporation

10/27/16 / #20160312652

Passive overspeed controlled turbo pump assembly

A turbine pump assembly has a turbine, a centrifugal pump, and a passive electrical speed control system. The turbine has a peak efficiency at a first speed that is lower than a second speed at which the centrifugal pump is operating at a peak power requirement. ... Hamilton Sundstrand Corporation

10/27/16 / #20160312648

Environmental control system mixing cabin discharge air with bleed air during a cycle

A system and method that comprises an air cycle machine, a flow of bleed air, at least one heat exchanger, and an inlet configured to supply the flow of the bleed air is provided. The bleed air flows from a source to mix with recirculated air in accordance with a high pressure mode or a recirculation chilling mode. ... Hamilton Sundstrand Corporation

10/27/16 / #20160311551

Engine proximate nitrogen generation system for an aircraft

A nitrogen generation system includes a bleed air source. The system also includes an air separation module having an inlet for receiving bleed air, a hollow fiber membrane for substantially removing oxygen from the bleed air to produce a stream of oxygen enriched air and a stream of nitrogen enriched air, a first outlet for exhausting the nitrogen enriched air, a second outlet for exhausting the oxygen enriched air from the air separation module. ... Hamilton Sundstrand Corporation

10/27/16 / #20160311540

Modular environmental air conditioning system

An environmental control system (ecs) is disclosed for providing conditioned air to a conditioned air space. The ecs includes one or more first modules, each with a turbofan engine or auxiliary power un it (apu), a first heat exchanger, a first turbine, a fist water collector, and a first auxiliary fan powered by the first turbine. ... Hamilton Sundstrand Corporation

10/27/16 / #20160311539

Environmental control system mixing cabin discharge air with bleed air during a cycle

A system and method that comprises an air cycle machine, a flow of bleed air, at least one heat exchanger, and an inlet configured to supply the flow of the bleed air is provided. The bleed air directly flows from a source to mix with recirculated air downstream of a compressor of the air cycle machine in accordance with a high pressure mode or a recirculation chilling mode. ... Hamilton Sundstrand Corporation

10/27/16 / #20160311538

Environmental control system utilizing cabin discharge air to power a cycle

A system and method that comprises an air cycle machine, a flow of bleed air, at least one heat exchanger, and an inlet configured to supply the flow of the bleed air is provided. The bleed air directly flows from a source to either a compressor of the air cycle machine or the at least one heat exchanger in accordance with a high pressure, low pressure, or pressure boost operation mode. ... Hamilton Sundstrand Corporation

10/20/16 / #20160308423

Sensorless control of a dc synchronous machine

An assembly for operating a dc synchronous machine according to an exemplary aspect of the present disclosure includes, among other things, a controller that is configured to determine a position of a rotating portion utilizing a carrier signal, adjust current supply to a field winding, and monitor and adjust operation of the dc synchronous machine based on various electrical parameters relating to the carrier signal. A method for operating a dc synchronous machine is also disclosed.. ... Hamilton Sundstrand Corporation

10/20/16 / #20160307721

Fuse assemblies

A fuse assembly includes a bus bar fuse and a clip. The bus bar fuse has a leg with a slotted opening. ... Hamilton Sundstrand Corporation

10/20/16 / #20160307685

Power converters with immersion cooling

A transformer assembly includes a housing with a sealed housing interior, a transformer disposed within the housing interior and having a core with windings wrapped about the core, and a condenser mounted to the housing. The condenser is in fluid communication with the housing interior. ... Hamilton Sundstrand Corporation

10/20/16 / #20160306375

Wetting current sequencing for low current interface

A process for automated contact wetting in a sensor circuit includes generating a first current through a contact by sequencing a first circuit on, the first current exceeding a wetting threshold of the contact, and reducing current through the contact to a second current by sequencing a second circuit on, the second current being below the wetting threshold.. . ... Hamilton Sundstrand Corporation

10/20/16 / #20160305865

Wavelet-based analysis for fouling diagnosis of an aircraft heat exchanger

A method and apparatus for estimating a fouling state of a heat exchanger of an aircraft. Training sensor measurements are obtained of a parameter related to operation of the heat exchanger and a wavelet transform is applied to the training sensor measurements to obtain wavelet data. ... Hamilton Sundstrand Corporation

10/20/16 / #20160305491

Disconnect shaft for an integrated drive generator (idg)

A disconnect shaft of an integrated drive generator is provided including a body configured to rotate about an axis of rotation. The body has a first end, a second opposite end, and a plurality of teeth formed adjacent the first end and configured to engage a complementary portion of an adjacent component. ... Hamilton Sundstrand Corporation

10/20/16 / #20160305338

Fuel control system with shutoff feature

A fuel control system according to an exemplary aspect of the present disclosure includes, among other things, a fuel delivery valve selectively moveable to a closed position to shut off a flow of fuel to a downstream location. The system further includes a windmill bypass valve, and a shutoff pressure line between the windmill bypass valve and the fuel delivery valve. ... Hamilton Sundstrand Corporation

10/20/16 / #20160305328

Shut off valves and components thereof for ecology fuel return systems

In at least one aspect of this disclosure, a shut off valve for an ecology fuel return system can include an inlet for receiving a fluid, an outlet for effusing the fluid, and a valve member configured to move between an open position such that the valve member allows fluid to effuse from the outlet and a closed position such that the valve member prevents fluid from effusing from the outlet. The valve member can include a pressure deflector configured to prevent fluid flow from biasing the valve member toward the closed position.. ... Hamilton Sundstrand Corporation

10/20/16 / #20160305272

Asymmetric load compensation system

This disclosure relates to a variable area nozzle of a gas turbine engine. The variable area nozzle includes, among other things, a control unit, a translatable structure, and a plurality of actuators configured to adjust the position of the translatable structure. ... Hamilton Sundstrand Corporation

10/20/16 / #20160304214

Emergency power sources for propulsion systems

A hybrid-electric propulsion system includes a motor drive and a rechargeable energy storage system electrically connected to the motor drive. A gas turbine engine is operatively connected to the motor drive and the rechargeable energy storage system. ... Hamilton Sundstrand Corporation

10/20/16 / #20160304208

Power augmentation for an air cycle machine of an environmental control system

A system that comprises a nozzle arrangement is provided. The nozzle arrangement includes at least one nozzle configured to supply a medium at a nozzle flow rate to a fan of an air cycle machine. ... Hamilton Sundstrand Corporation

10/13/16 / #20160301333

Dc synchronous machine

An assembly for a direct current (dc) synchronous machine, according to an exemplary aspect of the present disclosure includes, among other things, a stationary portion including a direct current (dc) armature winding and a rotating portion including alternating current (ac) field winding configured to supply dc output to the dc armature winding. A rotating inverter is configured to selectively communicate current to the ac field winding such that a frequency of the current is adjusted to approach synchronization with a position of the rotating portion. ... Hamilton Sundstrand Corporation

10/13/16 / #20160298783

Thermally actuated flow control valve

This disclosure relates to a system including a valve, a control unit, and a thermal element. The thermal element is selectively operable in response to instructions from the control unit to control a position of the valve. ... Hamilton Sundstrand Corporation

10/13/16 / #20160298780

Furnace braze deposition of hardface coating on wear surface

A disclosed method of hard coating a wear surface of a valve of an aircraft air management system is performed by depositing a hardface alloy powder onto the wear surface, heating the wear surface and the hardface alloy powder to transform the hardface alloy powder into a molten liquid mass, and subsequently cooling the molten liquid hardface alloy mass to solidify the hardface alloy onto the wear surface. The disclosed process provides for localized application and subsequent bonding of the hardface alloy to discrete portions of the wear surface. ... Hamilton Sundstrand Corporation

10/06/16 / #20160295148

Imaging circuit including frame asynchronous pulse detection

A pulse detecting imaging circuit includes a pixel array including multiple pixels arranged in at least one row and at least one column. The pixel array includes multiple row voltages and column voltages. ... Hamilton Sundstrand Corporation

10/06/16 / #20160294303

Systems and methods for controlling inverters

A method of controlling an inverter includes receiving a target waveform for output voltage of an inverter phase, calculating a phase bias for an inverter phase using the target waveform, biasing the target waveform using the phase bias, and generating a switching device command signal by comparing the biased target waveform to a carrier waveform. The switching device command signal has a switching patter that reduces midpoint current in an inverter input lead and common mode voltage in an inverter output lead.. ... Hamilton Sundstrand Corporation

10/06/16 / #20160294231

Stator heat transfer feature

A dynamoelectric machine includes a shaft, a rotor radially outward from the shaft with the rotor and shaft arranged to rotate in unison, a stator radially outward from the rotor with the stator being stationary relative to the rotor and shaft, and a heat transfer feature adjacent to and radially outward from the stator. The heat transfer feature includes a base encasing the stator and fins extending radially outward from the base with a configuration where the fins extend an axial length that is less than a total axial length of the base and/or extend at least partially in a circumferential direction.. ... Hamilton Sundstrand Corporation

10/06/16 / #20160294083

Circuit board with resilient seal as vapor barrier

A circuit board has a socket with at least one plated through-hole. A connector includes a housing that has first and second connector interfaces with, respectively, at least first and second connector contacts. ... Hamilton Sundstrand Corporation

10/06/16 / #20160293647

Digital imaging and pulse detection pixel

An imaging and pulse detection array includes: a plurality of pixels connected to a controller, the controller being configured to generate an image based on an image signal originating from each pixel in the plurality of pixels and configured to detect a pulse on at least one of the pixels in the plurality of pixels, and each of the pixels in the plurality of pixels including an imaging circuit and a pulse detection circuit, the imaging circuit and the pulse detection circuit including a shared circuit architecture, and wherein the imaging circuit and the pulse detection circuit include a shared portion.. . ... Hamilton Sundstrand Corporation

10/06/16 / #20160290491

Carrier shaft for a differential

Embodiments herein relate to piece-part, sub-assembly, assembly, and component levels of a differential composed of a sun gear configuration and utilized in an integrated drive generator. An integrated drive generator is a hydro-mechanical transmission that drives a synchronous salient pole generator. ... Hamilton Sundstrand Corporation

10/06/16 / #20160290489

Ring gear for an integrated drive generator

A ring gear for an integrated drive generator (idg) includes a gear body including an outer diametric edge and an inner diametric wall. The outer diametric edge includes 129 gear teeth.. ... Hamilton Sundstrand Corporation

10/06/16 / #20160290476

Method for condensation reduction in linear electromechanical actuators

An actuator includes a housing with a linear motor slider. A portion of the linear motor slider is positioned in the housing. ... Hamilton Sundstrand Corporation

10/06/16 / #20160290473

Accessory drive gear hub for a differential

Embodiments herein relate to piece-part, sub-assembly, assembly, and component levels of a differential composed of a sun gear configuration and utilized in an integrated drive generator. An integrated drive generator is a hydro-mechanical transmission that drives a synchronous salient pole generator. ... Hamilton Sundstrand Corporation

10/06/16 / #20160290470

Accessory drive gear for a differential

Embodiments herein relate to piece-part, sub-assembly, assembly, and component levels of a differential composed of a sun gear configuration and utilized in an integrated drive generator. An integrated drive generator is a hydro-mechanical transmission that drives a synchronous salient pole generator. ... Hamilton Sundstrand Corporation

10/06/16 / #20160290469

Input driven gear for a differential

Embodiments herein relate to piece-part, sub-assembly, assembly, and component levels of a differential composed of a sun gear configuration and utilized in an integrated drive generator. An integrated drive generator is a hydro-mechanical transmission that drives a synchronous salient pole generator. ... Hamilton Sundstrand Corporation

10/06/16 / #20160290468

Sun gear for an integrated drive generator

A sun gear for an integrated drive generator (idg) includes a sun gear body having an outer diametric edge and an inner diametric wall. The outer diametric edge includes 33 gear teeth.. ... Hamilton Sundstrand Corporation

10/06/16 / #20160290467

Planet gear for an integrated drive generator

A planet gear for an integrated drive generator (idg) includes a planet gear body having an outer diametric surface provided with 15 gear teeth.. . ... Hamilton Sundstrand Corporation

10/06/16 / #20160290436

End fittings for drive shaft assemblies

An end fitting for a drive shaft includes a shaft weld side having a face configured for fluid communication with an interior of a shaft with the shaft weld side welded to a shaft. The end fitting also includes a coupling side shaped to be operatively connected to a component for transferring rotational motion from the end fitting to the component. ... Hamilton Sundstrand Corporation

10/06/16 / #20160290396

Journal bearing for a differential

Embodiments herein relate to piece-part, sub-assembly, assembly, and component levels of a differential composed of a sun gear configuration and utilized in an integrated drive generator. An integrated drive generator is a hydro-mechanical transmission that drives a synchronous salient pole generator. ... Hamilton Sundstrand Corporation

10/06/16 / #20160288919

Ram air turbine stowing system

A ram air turbine (rat) stowing system includes a closed loop hydraulic circuit configured to hold a quantity of a hydraulic fluid to be utilized only by the rat stowing system and a rat actuator disposed in fluid communication with the closed loop hydraulic circuit. A pump system is connected to the hydraulic circuit to selectively pump the hydraulic fluid to a stow reservoir portion of the rat actuator to move the rat actuator from a deployed position to a stowed position. ... Hamilton Sundstrand Corporation

09/29/16 / #20160285364

Voltage regulator including a buck converter pass switch

A voltage driver includes a voltage input, a voltage regulation controller including an on/off input. The voltage regulation controller is configured to control a switching converter in a first mode, a second mode, and at least one additional mode. ... Hamilton Sundstrand Corporation

09/29/16 / #20160285345

Motor case cooling utilizing phase change material

A motor includes a rotor positioned adjacent to a stator case. A cooling system in the motor includes a plurality of fins, at least one coolant reservoir, and condenser coils. ... Hamilton Sundstrand Corporation

09/29/16 / #20160282061

Compact heat exchanger

A compact heat exchanger is provided and includes a first manifold defining an inlet for receiving from a component a fluid to be cooled and an outlet for returning the cooled fluid to the component to cool the component. A second manifold is disposed spaced from the first manifold. ... Hamilton Sundstrand Corporation

09/29/16 / #20160281781

Roller bearing outer race for hydraulic unit

A roller bearing outer race of a hydraulic unit has a body comprising a central section having an exterior curved portion, an exterior angled portion, and a circular inner portion, wherein a central aperture defining a first axis passes through the circular inner portion of the central section, a first arm extending from a first side of the central section, and a second arm extending from a second side of the central section. A race within the circular inner portion of the central section, the race defined by a first race wall and a second race wall and wherein a thickness of the first arm and the second arm is about 0.450 inches (1.143 cm) and a radial distance of an exterior surface of the exterior curved portion from the first axis is about 0.657 inches (1.669 cm).. ... Hamilton Sundstrand Corporation

09/29/16 / #20160281721

Bearing cooling flow and energy recovery systems

An air cycle machine is provided. The machine includes a housing configured to enable airflow therethrough, a fan disposed within the housing and configured to rotate within the housing, and at least one aperture formed in the housing and configured to allow airflow through the at least one aperture from a cooling airflow path of an air cycle machine and into the housing. ... Hamilton Sundstrand Corporation

09/29/16 / #20160281691

Piston and slipper assembly for hydraulic unit

A piston and slipper assembly of a hydraulic unit includes a slipper and a piston. The slipper includes a swashplate interface having a balance land and a piston ball socket extending to a ball engagement end, where a slipper length is defined between the balance land and the ball engagement end. ... Hamilton Sundstrand Corporation

09/29/16 / #20160280357

Rheologic fluid coupler for redundant linear electromechanical actuators

An actuation assembly includes a first shaft comprising a first end disposed opposite a second end. The actuation assembly further includes a second shaft with a first end disposed opposite a second end. ... Hamilton Sundstrand Corporation

09/22/16 / #20160276882

Method and assembly for cooling an electric machine

In one exemplary embodiment, an electric machine includes a stator having a plurality of axial protrusions forming a plurality of stator cooling channels on a radially outer surface of the stator and a tapered portion located adjacent a distal end of at least one of the plurality of protrusions. Additionally, the disclosure includes a method for cooling the electric machine.. ... Hamilton Sundstrand Corporation

09/22/16 / #20160274195

Method for electronically testing integrity of ideal diode components used in or'd voltage bus

A power system includes a first power input, a second power input, a power output, a first ideal diode coupled to the a power input and a power output and a second ideal diode coupled to a second power input and the power output. The power system also includes a first switching circuit coupled to the first power input and the first ideal diode and a second switching circuit coupled to the second power input and the second ideal diode, the switching circuits operating as an open or a short circuit based on an input. ... Hamilton Sundstrand Corporation

09/22/16 / #20160273847

Heat exchanger distributor swirl vane

A vapor cycle heat exchanger has a plurality of heat exchanger lines and a distributor. The distributor comprises a distributor housing, a swirl vane, an atomizing nozzle, a plurality of nozzles, and a fluid line intersection. ... Hamilton Sundstrand Corporation

09/22/16 / #20160273810

Flexible coupling with rotational capability

A coupling includes a body with two ends and a bore. Each end section includes a rotatable connection and a convolution, and there is a bent elbow section between the end sections.. ... Hamilton Sundstrand Corporation

09/22/16 / #20160273667

Pressure-regulating valves

A multi-bend control circuit for fluid communication with an outlet port of a valve includes a first circuit leg extending in a first direction and a second circuit leg extending at an angle from the first circuit leg in a second direction. A third circuit leg extends at an angle from the second circuit leg in a third direction different from the second direction. ... Hamilton Sundstrand Corporation

09/22/16 / #20160273645

Variable coaxial shaft for hydraulic unit

A variable coaxial shaft for a hydraulic unit includes a shaft body having a variable input shaft interface to drive rotation of a variable input shaft of the hydraulic unit. The variable coaxial shaft also includes a differential assembly interface having a first sealing interface, a second sealing interface, and one or more lubrication ports between the first sealing interface and the second sealing interface. ... Hamilton Sundstrand Corporation

09/22/16 / #20160273640

Deaerator gear with attachment surfaces

A gear has a central ring positioned about an axis, opposing tabs that extend from a first axial side of the central ring, and a shouldered ring that extends from a second axial side of the central ring, the shouldered ring having a lip that extends radially inward toward the axis.. . ... Hamilton Sundstrand Corporation

09/22/16 / #20160273531

Cylinder block assembly for hydraulic unit

A cylinder block assembly of a hydraulic unit includes a cylinder block having a plurality of piston bores arranged circumferentially about a central axis of the cylinder block assembly and extending through a first face of the cylinder block. Each of the piston bores has a pitch diameter defined radially with respect to the central axis of the cylinder block assembly. ... Hamilton Sundstrand Corporation

09/22/16 / #20160273500

Fuel pump system for bubble control

A fuel system includes an air residence chamber operative to receive fuel from a fuel tank and allow degassed air to separate from fuel to an upper portion, and a boost pump including a boost pump inlet and a boost pump outlet. The boost pump inlet is in fluid communication with a lower portion of the air residence chamber to pump fluid from the air residence chamber. ... Hamilton Sundstrand Corporation

09/22/16 / #20160273450

Self-actuated, in-line bleed valve

A bleed valve assembly includes a flow duct with an inlet and an outlet disposed downstream from the inlet. The outlet is smaller in cross-sectional area than a region of the flow duct disposed between the inlet and the outlet. ... Hamilton Sundstrand Corporation

09/22/16 / #20160273359

Port plate assembly for hydraulic unit

A port plate assembly of a hydraulic unit includes a port plate and a journal bearing. The port plate includes a fixed-speed interface side having a fixed-speed interface surface, and a variable-speed interface side having a variable-speed interface surface. ... Hamilton Sundstrand Corporation

09/22/16 / #20160272339

Scalable air filter configuration for fuel tank inerting system

An aircraft fuel tank inerting system includes a filter apparatus and an air separation module configured to separate oxygen from a fluid stream. The filter apparatus includes a housing unit with a fluid inlet port configured to receive a first fluid stream, a fluid outlet port configured to deliver a second fluid stream, and a plurality of filter cartridges. ... Hamilton Sundstrand Corporation

09/22/16 / #20160272329

Air cycle machine with cooling air flow path

An air cycle machine comprises rotating components that include a fan, a compressor, and a first turbine. The air cycle machine also includes a cooling airflow path that receives cooling air from a cooling air source, directs the cooling air to an air-cooled bearing for at least one of the rotating components, and discharges the cooling air. ... Hamilton Sundstrand Corporation

09/22/16 / #20160272299

Lightweight propeller blade with improved retention capacity

A propeller blade assembly includes a spar extending along a propeller blade axis and an outer sleeve surrounding the spar portion at a root end of the rotor blade assembly. The spar is adhesively bonded to the outer sleeve at an interface portion. ... Hamilton Sundstrand Corporation

09/22/16 / #20160271697

Powered removal for element formed by electron beam melting

A method for forming a part. The method includes: forming a first portion of the part at a first level; forming a second portion of the part at a second level; wherein forming the first and second portions includes exposing the first and second levels to a sintering process and portions of the first and second levels to an electron beam; forming a wire in the passage formed inside the first and second portions by exposing a portion of the passage to the electron beam; applying a signal to the wire to break up sintered material in the passage; and removing the wire.. ... Hamilton Sundstrand Corporation

09/22/16 / #20160271525

Deaerator shaft with attachment surfaces

A deaerator shaft may have a tubular intake segment that forms an intake end of the deaerator shaft, a tubular sleeve attachment segment that is adjacent to the intake segment, a tubular central segment that is adjacent to the sleeve attachment segment, the central segment having a third diameter that is greater than the second diameter, the central segment comprising a protruding ring that radially extends from the central segment and divides the central segment, the protruding ring having opposing flat surfaces, and a tubular discharge segment that forms a discharge end of the deaerator shaft. A gear may have a central ring positioned along an axis, opposing tabs that extend from a first axial side of the central ring, and a shouldered ring that extends from a second axial side of the central ring, the shouldered ring having a lip that extends radially inward toward the axis.. ... Hamilton Sundstrand Corporation

09/15/16 / #20160268949

Inrush limiter for motor drive ac/ac power converters

A variable frequency motor drive system configured such that the dc link capacitor charge is increased gradually, thus avoiding the above-mentioned transients. In the most preferred embodiment, the present invention ensures a gradual increase in the rectified voltage by providing the rectifier as a half-controlled thyristor rectifier (scr) in place of the standard diode rectifier.. ... Hamilton Sundstrand Corporation

09/15/16 / #20160268942

Control of hybrid permanent magnet machine with rotating power converter and energy source

A hybrid permanent magnet machine has a stator including armature windings. A rotor includes permanent magnets, a main field winding, and a rechargeable energy source. ... Hamilton Sundstrand Corporation

09/08/16 / #20160261153

Cores for electrical machines

A core for an electrical machine includes a core body. The core body extends long a rotation axis and includes two or more core segments axially stacked with one another along the rotation axis. ... Hamilton Sundstrand Corporation

09/08/16 / #20160258362

Lightweight mist eliminator for aircraft fuel tank inerting systems

A spiral mist elimination system includes a container with an inlet and a layered assembly in fluid communication with the inlet. The layered assembly contains a spiral shape and is concentric with a central axis of the container. ... Hamilton Sundstrand Corporation

09/08/16 / #20160257416

Propulsion system

A propulsion system and related methods are disclosed. A propulsion system may have a propulsor, an energy conversion system, an energy storage system that stores electrical energy, and a turbine. ... Hamilton Sundstrand Corporation

09/08/16 / #20160257410

Replacement system providing replacement air to an inerting system

A replacement system, which includes a plurality of heat exchangers and a compressing device, is configured to prepare in parallel a medium bled from a low-pressure location of an engine and flowing through a plurality of heat exchangers into a chamber. The compressing device is in communication with the plurality of heat exchangers and regulates a pressure of the medium flowing through the plurality of heat exchangers. ... Hamilton Sundstrand Corporation

09/08/16 / #20160256975

Method and system for finishing component using abrasive media

A method according to an exemplary aspect of the present disclosure, includes, among other things, at least partially filling a vessel with an abrasive fluid, pressurizing the abrasive fluid, and vibrating a component within the vessel. Further, the method includes gradually adjusting a rate material is removed from the component.. ... Hamilton Sundstrand Corporation

09/01/16 / #20160252549

Digitally implemented ripple detector

What is described is a system for estimating a ripple component of an input signal. The system includes a first module configured to remove a direct current (dc) component from the input signal and output an alternating current (ac) signal that includes the ripple component and a low frequency component of the input signal. ... Hamilton Sundstrand Corporation

08/25/16 / #20160249490

Magnetic devices with integral cooling channels

A magnetic device includes an electrically insulating body and a conductor coil. The insulating body defines an internal cavity for a magnetic device core and a coolant channel routed about the internal cavity. ... Hamilton Sundstrand Corporation

08/25/16 / #20160245186

Self-actuating and dual pivot flapper valve

A bleed valve includes a valve body, a first flapper body movable relative to the valve body between an open position and a closed position, and a second flapper body movable relative to the valve body between an open position and a closed position. A resilient member biases the first and second flapper bodies to the open position to vent bleed air. ... Hamilton Sundstrand Corporation

08/25/16 / #20160245118

Actuator housing for ram air turbine deployment actuator

An actuator housing is provided. The actuator housing may comprise a body, and a first side of the body including a first pin interface and a first threaded hole clocked relative to the first pin interface. ... Hamilton Sundstrand Corporation

08/18/16 / #20160241093

Lubricant channel on a stator winding support

A stator for a generator includes a core having a back iron that is annular in shape and poles that extend inward from the back iron, a hoop having an annular shape that is radially inward from the back iron, and a plurality of winding supports surrounding the poles. Each winding support includes a tooth extending radially inward from the hoop and surrounding a corresponding pole with the tooth having a first end adjacent to the hoop and a second end radially inward from the first end and a first channel on a first axial side of the tooth extending from the second end to the first end. ... Hamilton Sundstrand Corporation

08/18/16 / #20160238120

Spiral bevel and pinion gear

A gear set is provided for use in a gearbox. The gear set includes a first bevel gear having a first rotational axis and a second bevel gear having a second rotational axis. ... Hamilton Sundstrand Corporation

08/18/16 / #20160237999

System and method for improved spot-cooling of aircraft electronics

A spot-cooling system including an electroactive polymer actuator, an enclosure defining an internal cavity, and a port in the enclosure is described herein. The electroactive polymer actuator may be configured to draw air into the enclosure. ... Hamilton Sundstrand Corporation

08/18/16 / #20160237913

Full-area bleed valves

A bleed valve includes inlet and outlet housings, a hollow shaft defining a valve axis, and a full-area piston. The shaft includes a first end mounted to an inner diameter portion of the inlet housing and a second end mounted to an end cap of the outlet housing. ... Hamilton Sundstrand Corporation

08/18/16 / #20160236802

Urine stowage system for spacecraft

A waste handling system includes a urinal and first and second urine storage containers. A distribution system fluidly interconnects the urinal to the first and second urine storage containers. ... Hamilton Sundstrand Corporation

08/18/16 / #20160236793

Actuator housing for ram air turbine deployment actuator

An actuator housing is provided. The actuator housing may comprise a body. ... Hamilton Sundstrand Corporation

08/18/16 / #20160236770

Electronic control with interchangeable subsystem modules

A modular electronic control system is disclosed. The modular electronic control system may have a base control unit to which one or more internal subsystem module and/or external subsystem module may be mounted. ... Hamilton Sundstrand Corporation

08/11/16 / #20160233740

Propeller in-hub power generation and control

A power generation unit for generating electric power within a rotating reference frame includes a generator and a gear assembly. The generator has a plurality of first generator parts disposed concentrically with and radially outward from a plurality of second generator parts. ... Hamilton Sundstrand Corporation

08/11/16 / #20160233655

Wire support member for an environmental control system

A wire support member for an environmental control system includes a bracket having an inner surface, an outer surface, and a thickness. A first arm projects from the bracket, a first flange projects from a first end of the first arm. ... Hamilton Sundstrand Corporation

08/11/16 / #20160233654

Wire support member for an environmental control system

A wire support member for an environmental control system, the wire support member has a first bracket with inner and outer surfaces and a second bracket with inner and outer surfaces. A bracket connecter is disposed between and connects the first bracket and the second bracket. ... Hamilton Sundstrand Corporation

08/11/16 / #20160233653

Wire support member for an environmental control system

A wire support member for supporting the wiring of an environmental control system. The wire support member has a base edge, a first edge, and a second edge, the first and second edges form a v-shaped apex opposite the base edge. ... Hamilton Sundstrand Corporation

08/11/16 / #20160233592

Creepage design terminal strip

A terminal strip and a method of improving a creepage dielectric strength of the same includes a base plate, a barrier, each constructed from an insulating material, and a plurality of terminals constructed from a conducting material. The terminals are connected to the base plate and spaced along a surface thereof. ... Hamilton Sundstrand Corporation

08/11/16 / #20160233063

System and method for enhanced ion pump lifespan

Within an ion pump, accelerated ions leave the center portion of an anode tube due to the anode tube symmetry and the generally symmetrical electric fields present. The apparent symmetry within the anode tube may be altered by making the anode tube longitudinally segmented and applying independent voltages to each segment. ... Hamilton Sundstrand Corporation

08/11/16 / #20160231031

Environmental control system utilizing cabin air to drive a power turbine of an air cycle machine and utilizing multiple mix points for recirculation air in accordance with pressure mode

A system is provided. The system includes an inlet providing a first medium; an inlet providing a second medium; a compressing device including a compressor and a turbine; and at least one heat exchanger located downstream of the compressor. ... Hamilton Sundstrand Corporation

08/11/16 / #20160229551

Sensor system for a wing panel assembly and method of monitoring a wing panel assembly

A sensor system for a wing panel assembly of an aircraft includes a first end of a linkage assembly operatively coupled to a first slat panel. Also included is a second end of the linkage assembly operatively coupled to a second slat panel with a first ball joint. ... Hamilton Sundstrand Corporation

08/11/16 / #20160229542

Environmental control system utilizing parallel ram heat exchangers

A system, which includes a plurality of heat exchangers and a compressing device, is configured to prepare in parallel a medium bled from a low-pressure location of an engine and flowing through a plurality of heat exchangers into a chamber. The compressing device is in communication with the plurality of heat exchangers and regulates a pressure of the medium flowing through the plurality of heat exchangers.. ... Hamilton Sundstrand Corporation

08/11/16 / #20160229541

Environmental control system utilizing parallel ram heat exchangers with air cycle machine speed compensation

A system, which includes a plurality of heat exchangers and a compressing device, is configured to prepare in parallel a medium bled from a low-pressure location of an engine and flowing through a plurality of heat exchangers into a chamber. The compressing device is in communication with the plurality of heat exchangers and regulates a pressure of the medium flowing through the plurality of heat exchangers. ... Hamilton Sundstrand Corporation

08/11/16 / #20160229525

Electromechanical rotary actuator

An electromechanical hinge-line rotary actuator is provided. The actuator includes a drive member and a motor disposed inside and directly coupled to the drive member. ... Hamilton Sundstrand Corporation

08/04/16 / #20160227099

Short wave infrared camera

An exemplary camera assembly includes a camera body, a camera lens, a cradle that communicates signals between the camera body and the camera lens, and a short wave infrared sensor module selectively received within the cradle.. . ... Hamilton Sundstrand Corporation

08/04/16 / #20160226349

Electromechanical linear actuator

A linear actuator includes an actuator housing. The actuator housing includes a plurality of motors providing linear movement along a motor drive axis wherein the motor drive axes are parallel, and wherein the motors are within the housing. ... Hamilton Sundstrand Corporation

08/04/16 / #20160226348

Rotating rectifiers with nested diodes

A rectifier includes a diode with an anode face and an opposed cathode face that are both angled in relation to a rotation axis of the diode. A first diode plate overlays the diode anode face. ... Hamilton Sundstrand Corporation

08/04/16 / #20160226179

Electrical connector protection

An embodiment of an electrical connector assembly includes a shell, a plurality of fixed conductors, and a potting container. The shell includes a plurality of walls extending in a first direction from a base having at least one opening. ... Hamilton Sundstrand Corporation

08/04/16 / #20160224449

Method of performing single event upset testing

A system for simulating an event includes a memory system, a parity generator/validator, and a fault injector. The fault injector is configured to inject bits at an address in the memory system when the parity generator/validator is in an disabled state. ... Hamilton Sundstrand Corporation

08/04/16 / #20160223098

Self-acting pressure drain valve

A self-acting pressure activated drain valve includes at least one inlet configured to receive a fluid. A drainage passage delivers the fluid to at least one outlet where the fluid is expelled. ... Hamilton Sundstrand Corporation

08/04/16 / #20160221664

Boundary layer control assembly for an aircraft airfoil and method of controlling a boundary layer

A boundary layer control assembly for an aircraft airfoil includes a leading edge and a trailing edge spaced from the leading edge to form a chord length. The boundary layer control assembly also includes a heating element disposed proximate the leading edge to heat a boundary layer formed along the surface of the aircraft airfoil.. ... Hamilton Sundstrand Corporation

08/04/16 / #20160221122

Hybrid additive manufacturing method for rotor

A method of manufacturing a rotor having a hub and a plurality of vanes extending therefrom includes providing the hub, the hub having an outer surface, and depositing a laser cladding on the hub outer surface to form the plurality of vanes.. . ... Hamilton Sundstrand Corporation

08/04/16 / #20160220950

Enhanced device for separation of oxygen and nitrogen

A device is disclosed for separating nitrogen and oxygen. The device includes an inlet in fluid communication with a source of a gas comprising oxygen and nitrogen, a membrane having a greater permeability to oxygen than to nitrogen. ... Hamilton Sundstrand Corporation

07/28/16 / #20160217095

Modular signal interface unit

A signal interface unit for use on an aircraft includes a microcontroller, at least one connector, and first and second communication links. The first communication link is connected between the microcontroller and the at least one connector. ... Hamilton Sundstrand Corporation

07/28/16 / #20160216305

Systems and methods for arc detection

An arc fault detection system includes a first current sensor, a second current sensor, a band-pass filter, and a comparator module. The first current sensor, the second current sensor, and the comparator module are each connected to the comparator module by direct leads for biasing a current differential between the first current sensor and the second current sensor using a bias calculated from a frequency component indicative of arc events received from the frequency selector.. ... Hamilton Sundstrand Corporation

07/28/16 / #20160216046

Bowed fin for heat exchanger

A heat exchanger includes a plurality of first fluid passages configured to receive a first stream and a plurality of second fluid passages each formed between two first fluid passages. Each first fluid passage includes a first plate and a second plate parallel to the first plate. ... Hamilton Sundstrand Corporation

07/28/16 / #20160215917

Conductive elastomeric flexible coupling

A conductive elastomeric flexible coupling for a pneumatic duct system is provided. The coupling includes a tube section. ... Hamilton Sundstrand Corporation

07/28/16 / #20160215889

Butterfly valve with modified scotch yoke connection

An embodiment of a valve includes a housing having at least an actuator chamber above a main fluid passage. A flow control member is mounted to a first longitudinal end of the valve shaft extending into, and is rotatable in, the main fluid passage. ... Hamilton Sundstrand Corporation

07/28/16 / #20160215791

Compressor diffuser and shroud for a motor driven compressor

An aspect includes a compressor diffuser and shroud for a motor driven compressor assembly. The motor driven compressor assembly includes a first stage compressor and a second stage compressor. ... Hamilton Sundstrand Corporation

07/28/16 / #20160215790

Compressor diffuser and shroud for a motor driven compressor

An aspect includes a compressor diffuser and shroud for a motor driven compressor assembly. The motor driven compressor assembly includes a first stage compressor and a second stage compressor. ... Hamilton Sundstrand Corporation

07/28/16 / #20160214741

Ram air turbine stow lock pin

What is defined is a stow lock pin for use in preventing deployment of a ram air turbine of an aircraft, the aircraft having a first distance from the ram air turbine to an access window. The stow lock pin includes a tip configured to be received by a slot of the ram air turbine. ... Hamilton Sundstrand Corporation

07/28/16 / #20160214722

Ram air flow modulation valve

An aircraft temperature control system to control a temperature of an environmental control system includes a ram inlet in fluid communication with an external area of the aircraft, and a ram outlet in fluid communication with an internal area of the environmental control system within the aircraft. A heat exchanger assembly is interposed between the ram inlet and the ram outlet. ... Hamilton Sundstrand Corporation

07/21/16 / #20160212878

Phase change material heat sinks

A heat sink includes a core body. The core body defines a coolant plenum, sealed first and second chambers, and first and second coolant conduits. ... Hamilton Sundstrand Corporation

07/21/16 / #20160211786

Synchronous machine with rechargeable power storage devices

A rotor portion of a synchronous machine includes a rotor. The rotor carries a field winding and a re-chargeable power storage device. ... Hamilton Sundstrand Corporation

07/21/16 / #20160211716

Rotor wedge with arms

A wedge for use in a generator rotor includes a wedge body extending for an axial length and having a generally triangular cross-section, a first side of the wedge body extending for the axial length of the wedge body, a second side of the wedge body extending for the axial length of the wedge body and having a generally flat surface, a third side of the wedge body extending for the axial length of the wedge body and having a generally flat surface, a first arm extending circumferentially away from the wedge body at an interface between the first side and the second side and extending axially along the wedge body, and a second arm extending circumferentially away from the wedge body at an interface between the first side and the third side and extending axially along the wedge body.. . ... Hamilton Sundstrand Corporation

07/21/16 / #20160211715

Rotor wedge for a generator

A wedge for use in a generator rotor includes a wedge body having a generally triangular cross-section with a first side, second side and third side with the third side being at a 90 degree angle to the second side and equal in length to the second side. The wedge also includes a first contact surface adjacent to the second side at an interface between the first side and the second side, a second contact surface adjacent to the third side at an interface between the first side and the third side, a first tab extending outward from the first contact surface at a location between the first contact surface and the first side, and a second tab extending outward from the second contact surface at a location between the second contact surface and the second side with the second tab having an equal height to the first tab.. ... Hamilton Sundstrand Corporation

07/21/16 / #20160211713

One-piece end winding support with integrated lubricant manifold

An end winding support for a generator rotor includes a support body with an annular inner surface configured to be radially outward from a rotor shaft, a plurality of winding support arms extending radially outward from the support body, and a plurality of orifices extending from the annular inner surface of the support to an exterior surface of the support body adjacent the plurality of winding support arms with the plurality of orifices configured to transfer lubricant from a surface of the rotor shaft to a plurality of windings located on the plurality of winding support arms.. . ... Hamilton Sundstrand Corporation

07/21/16 / #20160211712

End winding support segment with integrated lubricant manifold

An end winding support segment for a generator rotor includes a support segment body with a curved inner surface configured to be adjacent to a rotor shaft, a winding support arm extending radially outward from the support segment body, and an orifice extending from the curved inner surface of the support to an exterior surface of the support adjacent the winding support arm with the orifice configured to transfer lubricant from a surface of the rotor shaft to a winding located on the winding support arm.. . ... Hamilton Sundstrand Corporation

07/21/16 / #20160211673

Localized source selection and power conversion power distribution system

A localized source selection and power conversion power distribution system is described herein. In contrast to legacy systems, where multiple bus tie connectors are coupled between the centralized buses, the localized source selection and power conversion power distribution system is, in general, solely linked by a post conversion link. ... Hamilton Sundstrand Corporation

07/21/16 / #20160211129

Mass spectrometer electrode

A monolithic electrode includes a first portion devoid of apertures and a second portion surrounded by the first portion, the second portion having a web defining a plurality of apertures. A method for forming an electrode includes forming a first electrode portion devoid of apertures and forming a second electrode portion having a web defining a plurality of apertures. ... Hamilton Sundstrand Corporation

07/21/16 / #20160210247

Access key generation for computer-readable memory

In one example, a method includes receiving, by a controller device from a master device operably connected to the controller device, a memory access request configured to request access to computer-readable memory of the controller device. The method further includes sampling, by the controller device, time-varying data received from a controlled device operably connected to the controller device, and generating, by the controller device in response to receiving the memory access request, an access key using the sampled time-varying data received from the controlled device. ... Hamilton Sundstrand Corporation

07/21/16 / #20160209132

Self-regulating heat exchanger

A heat exchanger includes a flow channel operatively connecting a channel inlet to a channel outlet to channel fluid to flow therethrough. The flow channel is defined at least partially by a shape change material. ... Hamilton Sundstrand Corporation

07/21/16 / #20160209128

Composite passive heat sink system and method

A system including a passive heat sink is depicted. A passive heat sink may include an enclosure housing a nonmetal matrix composite. ... Hamilton Sundstrand Corporation

07/21/16 / #20160209126

Composite flow-through heat sink system and method

A system including a flow-through heat sink is depicted. A flow-through heat sink may include an enclosure housing a nonmetal matrix composite. ... Hamilton Sundstrand Corporation

07/21/16 / #20160208932

Aperture plates for pressure-regulating valves

A valve assembly includes a sleeve with an inlet and an outlet. A spool is slideably disposed within an interior of the sleeve and is movable along a spool movement axis defined by the sleeve between first and second positions such a flow area between the inlet and outlet is greater when the spool is in the second position than when the spool is in the first position. ... Hamilton Sundstrand Corporation

07/21/16 / #20160208928

Vibration tolerant butterfly valve

A valve includes a valve housing, a shaft, a flow control member, and an actuator assembly. The valve housing includes walls defining at least an actuator chamber above a main fluid passage, with a valve centerline parallel to a longitudinal axis of the main fluid passage. ... Hamilton Sundstrand Corporation

07/21/16 / #20160208853

Roller bearing outer race for hydraulic unit

A roller bearing outer race of a hydraulic unit having a body having a first part and a second part. The first part comprising a central section having an exterior curved portion, an exterior angled portion, and a circular inner portion, wherein a central aperture defining a first axis passes through the circular inner portion of the central section, a first arm extending from a first side of the central section, and a second arm extending from a second side of the central section. ... Hamilton Sundstrand Corporation

07/21/16 / #20160208847

Quad foil journal air bearing

A quad foil journal air bearing includes a journal sleeve having an inner circumference that defines an inner surface. A first foil assembly includes a first key coupled to the inner surface of the journal sleeve. ... Hamilton Sundstrand Corporation

07/21/16 / #20160208823

Shrouded fan rotor

A fan rotor for an aircraft environmental control system ram fan is provided. The fan rotor includes central body defining a central axis and a radius having a first radial distance that is defined as a distance from the central axis to an edge of the central body. ... Hamilton Sundstrand Corporation

07/21/16 / #20160208819

Ram fan device and motor cooling systems and methods

A ram fan device includes a motor disposed in a housing that defines a motor cavity with a fan operatively connected to be driven by the motor and an outlet in fluid communication with the motor cavity. The housing includes a cooling inlet therethrough downstream of the fan and upstream of the motor, the cooling inlet being in fluid communication with the outlet through the motor cavity such that airflow can pass through the cooling inlet through the motor cavity and out the outlet.. ... Hamilton Sundstrand Corporation

07/21/16 / #20160208799

Low-pulse vane pumps

The vane pump includes a housing enclosing the rotor and vanes, the housing including an inner surface defined by a core profile to cause the vanes to extend and retract radially to provide a predetermined vane displacement with rotation of the vanes. The core profile includes an inlet profile portion and an outlet profile portion, wherein the core profile includes a vane radius modifying portion defined between the inlet profile portion and the outlet profile portion such that a radial extension of a vane that is guided along the inner surface will change when transiting the vane radius modifying portion.. ... Hamilton Sundstrand Corporation

07/21/16 / #20160208785

Slipper retainer ball for hydraulic unit

A slipper retainer ball of a hydraulic unit having an aperture passing through a body, the body having a flat bottom surface, a flat top surface, an external curved surface, and an interior profiled surface that extends in an axial direction from the bottom surface to the top surface. The interior profiled surface includes a first surface extending parallel to the axis from the bottom surface in the axial direction, a second surface extending perpendicular to the axis from the first surface and outward toward the external curved surface, a third surface extending from the second surface axially at a first angle, a fourth surface extending from the third surface in the axial direction, and a fifth surface extending from the fourth surface to the top surface at a second angle that is skew from the axis. ... Hamilton Sundstrand Corporation

07/21/16 / #20160208784

Slipper retainer for hydraulic unit

A slipper retainer of a hydraulic unit having a circular body having a back surface and an outer edge, the circular body defining a diameter of about 2.240 inches (5.629 cm), a central aperture through a center of the circular body, the circular body having a curved surface defining an edge of the central aperture, wherein the curved surface is defined by a sphere that is centered at a point located a distance of about 0.209 inches (0.531 cm) from the back surface of the body, and a plurality of slipper apertures located between the curved surface of the circular body and the outer edge of the circular body, wherein each slipper aperture of the plurality of slipper apertures has a diameter of about 0.464 inches (1.179 cm).. . ... Hamilton Sundstrand Corporation

07/21/16 / #20160208702

Pneumatic actuator low flow servo valve

A valve system includes a valve for controlling flow of a fluid and a valve controller for providing fluid to control the movement of a valve actuator. The valve includes a flow control device, a modulating chamber, and the valve actuator. ... Hamilton Sundstrand Corporation

07/21/16 / #20160208694

Cooling device for electro-pneumatic controller

A valve system includes a valve, a valve controller, and a heat exchanger. The valve is configured to open and close a control device in response to a working fluid. ... Hamilton Sundstrand Corporation

07/21/16 / #20160208624

3d printing of lead edge protective sheaths

A method of manufacturing a lead edge protective sheath for an airfoil component is provided. The method includes generating a digital model of a lead edge protective sheath for an airfoil component, inputting the digital model into an additive manufacturing machine, and printing, with one or more selected materials, a lead edge protective sheath for an airfoil component based on the digital model.. ... Hamilton Sundstrand Corporation

07/21/16 / #20160208611

Bearing faces with fluid channels for gear pumps

A bearing carrier has a bearing body including a first material. The bearing body has an exterior surface defining a bridge land with a finger cut and rotatably supports a first and second gear. ... Hamilton Sundstrand Corporation

07/21/16 / #20160207629

Cooling air supply control system for air cycle machine

An air supply controller is configured to supply cooling air to an air cycle machine. The controller includes a chamber having a first inlet configured to receive air from a first source, a second inlet configured to receive air from a second source, and an outlet configured to pass air from first inlet and/or the second inlet to an air cycle machine. ... Hamilton Sundstrand Corporation

07/21/16 / #20160206995

High temperature air separation system architecture

An air separation system includes a high temperature ozone converter, a mechanical separator downstream of the high temperature ozone converter, and an air separator downstream of the mechanical separator. The air separator receives high temperature air and provides high temperature nitrogen-enriched air and high temperature oxygen-enriched air. ... Hamilton Sundstrand Corporation

07/21/16 / #20160206160

Dosing pump

A dosing pump according to an exemplary aspect of this disclosure includes, among other things, a first chamber having an outlet fluidly coupled to a mixing area, and a second chamber having an outlet fluidly coupled to the mixing area. The dosing pump further includes a piston moveable between a suction position and a discharge position. ... Hamilton Sundstrand Corporation

07/14/16 / #20160204713

Multilevel active rectifiers

A multilevel rectifier includes an input lead, a switching module, and a multilevel direct current (dc) link. The switching module includes a plurality of switch devices connected to the input lead. ... Hamilton Sundstrand Corporation

07/14/16 / #20160204668

Stator pole insulator

A machine includes a rotor and a stator disposed about an axis. The stator includes a ring disposed about the axis. ... Hamilton Sundstrand Corporation

07/14/16 / #20160201698

Fixed wobbler for hydraulic unit

A fixed wobbler of a hydraulic unit includes a body having a first end and an opposite second end, the first end defining a first surface, and the second end defining a second surface oriented at an angle relative to the first surface, the body having an outer diameter and an inner wall defining an inner diameter, wherein the outer diameter is approximately 2.1655+0.0000−0.0007 inches (5.5004+0.000−0.0018 cm), and wherein the inner diameter is approximately 1.043±0.003 inches (2.6492±0.0076 cm).. . ... Hamilton Sundstrand Corporation

07/14/16 / #20160201697

Variable wobbler for hydraulic unit

A variable wobbler of a hydraulic unit includes a body having a first end and an opposite second end, the first end including an annular wall and an inner surface configured to contact a piston of the hydraulic unit. The body further includes an outer wall, an inner wall defining an inner diameter, and a conical inner wall extending from the inner wall. ... Hamilton Sundstrand Corporation

07/14/16 / #20160201576

Flexure for metering valve assembly

A flexure for a metering valve has a flexure body defining a center axis to be aligned with a fuel nozzle. The flexure body includes an outermost peripheral surface surrounding the center axis. ... Hamilton Sundstrand Corporation

07/14/16 / #20160201558

Controller cooling arrangement

A controller according to an exemplary aspect of the present disclosure includes, among other things, a cold plate and at least one electronic component mounted to the cold plate by an intermediate thermoelectric cooler.. . ... Hamilton Sundstrand Corporation

07/14/16 / #20160201553

Compound supercharged internal combustion engine systems and methods

A supercharge compound configuration of a forced induction intake and/or breather system for an internal combustion engine is provided. The system may be configured to improve the power output of an internal combustion engine when considered against similar internal combustion engines with conventional forced induction systems. ... Hamilton Sundstrand Corporation

07/14/16 / #20160200450

Direct position measurement for aircraft flight control surfaces

A method and apparatus for determining a discrete position of a first surface of an aircraft is disclosed. The first surface and a second surface movable relative to the first surface are provided. ... Hamilton Sundstrand Corporation

07/07/16 / #20160195342

Heat exchanger with fin wave control

A plate fin heat exchanger includes a plurality of finned cold layers configured to conduct a first fluid, and a plurality of finned warm layers configured to conduct a second fluid. The finned warm layers include an inlet side and an outlet side. ... Hamilton Sundstrand Corporation

07/07/16 / #20160195336

Honeycomb heat exchanger

A heat exchanger has a plurality of cells. A first subset of the cells extends for a lesser distance along an axis of the cells and a second subset of the cells extends for a greater axial distance. ... Hamilton Sundstrand Corporation

07/07/16 / #20160195004

Water injector for aviation cooling system

A water injector for an aviation cooling system includes a body having a first end, a second end, and an intermediate portion extending therebetween. A conduit extends through the body from the first end to the second end. ... Hamilton Sundstrand Corporation

07/07/16 / #20160193701

Method of mounting a capacitor

A method of mounting a capacitor to a bracket is provided. The method includes the step of providing a capacitor with an outer shell, a capacitor member disposed within the shell and a conductor member disposed within the outer shell and thermally coupled to the capacitor member. ... Hamilton Sundstrand Corporation

06/16/16 / #20160172946

Dual-output generators

A dual-output generator includes a first generator with a rotor, a second generator with a rotor, and first and second power converters. The rotor of the first generator is coupled to the rotor of the second generator for common rotation with the rotor of the first generator. ... Hamilton Sundstrand Corporation

06/16/16 / #20160172938

Methods and systems of air bubble flushing in liquid cooled generators

A liquid cooled generator is provided having a rotor having a central core and a main stator winding wrapped around the central core. A first laminate at a first end of the central core is provided having a first orifice defining a first diameter and a second laminate at a second end of the central core is provided having a second orifice defining a second diameter that is the same as the first diameter. ... Hamilton Sundstrand Corporation

06/16/16 / #20160172937

Electrical machine with reduced windage

A rotating machine has a shaft rotatable about an axis, a rotor rotatable with the shaft, and a rotor end winding at an axial end of the rotor. A stator is spaced from the rotor and forms a gap therebetween. ... Hamilton Sundstrand Corporation

06/16/16 / #20160172126

Integrated contractor mounting and power distribution system and method

A contactor mounting system is disclosed herein. The contactor is directly mounted to the printed wire board. ... Hamilton Sundstrand Corporation

06/16/16 / #20160168693

Composite electrically conductive structures

A method of tailoring an amount of graphene in an electrically conductive structure, includes arranging a substrate material in a plurality of strands and arranging at least one graphene layer coated circumferentially on one or more of the strands of the plurality of strands, the graphene layer being a single atom-thick layer of carbon atoms arranged in a hexagonal pattern, the substrate material and the at least one graphene layer having an axial direction. A first cross-section taken along the axial direction of the substrate and the at least one graphene layer includes a plurality of layers of the substrate material and at least one internal layer of the graphene alternatively disposed between the plurality of layers of the substrate material.. ... Hamilton Sundstrand Corporation

06/16/16 / #20160167790

Engine driven-shaft driven compressor utilizing infinitely variable transmission

An air compressing system is provided that includes a compressor configured to compressor air. An engine is operatively connected to the compressor. ... Hamilton Sundstrand Corporation

06/09/16 / #20160160903

Fitting with dual serrated locking rings

A fitting has a threaded insert to be tightened within a housing bore. A first lock ring has an anti-rotation structure on an outer peripheral surface to interfit with anti-rotation structure in a housing. ... Hamilton Sundstrand Corporation

06/09/16 / #20160160866

Air cycle machine speed diagnostic

A method and apparatus for operating an air cycle machine is disclosed. The apparatus includes a detector for measuring a rotational speed of a component of the air cycle machine. ... Hamilton Sundstrand Corporation

06/09/16 / #20160159491

Integrated power quality module

A power quality control system configured to control and monitor electrical systems is provided. The system includes a first generator control unit configured to control a power of a first generator, a second generator control unit configured to control a power of a second generator, and a first integrated power quality module integrated with the first generator control unit and configured to operate as a power quality check for the second generator control unit.. ... Hamilton Sundstrand Corporation

06/02/16 / #20160156348

Solid state power controllers

A solid state power controller (sspc) includes a main feed line, a load line, and a p-channel field effect transistor (pcfet) connecting between the main feed line and the load line and including an off state and an on state. The on state electrically connects the main feed line and the load line and the off state electrically disconnects the main feed line and the load line. ... Hamilton Sundstrand Corporation

06/02/16 / #20160156252

Electromechanical actuator having an oil and water thermal system

A cooling system of an electromechanical actuator is provided. The cooling system includes a housing and a stator located within the housing and defining a central bore. ... Hamilton Sundstrand Corporation

06/02/16 / #20160156194

Virtual channel abstraction layer for solid state power controls

A multi-channel power controller includes a main controller communicatively coupled to a plurality of standard power control circuit boards. Each of the standard power controller circuit boards includes a nexus having a plurality of virtual channels and a plurality of solid state power controllers. ... Hamilton Sundstrand Corporation

06/02/16 / #20160155538

Litz wire terminal assembly

A litz wire terminal assembly includes a wire bundle having a plurality of electrically conductive strands extending between a first end and a second end to define a length. Each strand includes an insulative cover having a proximate cover end at the first end and a distal cover end at the second end. ... Hamilton Sundstrand Corporation

06/02/16 / #20160154754

Smart test link dongle

A dongle for connecting a computerized device to a certified unit under test (uut) includes a computerized device communication port and a uut communication port. The dongle also includes a communication module operatively connecting the computerized device communication port and the uut communication port. ... Hamilton Sundstrand Corporation

06/02/16 / #20160153729

Large capacity heat sink

A cooling system includes a first boiler defining a first flow path with a first thermal load. A second heat exchanger defines a second flow path with a second thermal load. ... Hamilton Sundstrand Corporation

06/02/16 / #20160152322

Multi-slice rotary electromechanical actuator

A multi-slice electromechanical hinge-line rotary actuator includes a motor stator configured to generate rotational motion about a rotational axis. The multi-slice electromechanical hinge-line rotary actuator further includes a plurality of layers rotatably coupled to the motor stator. ... Hamilton Sundstrand Corporation

05/26/16 / #20160149505

Inductive clamping circuit

A power control circuit includes a solid state power controller operable to connect an ac power source to a load. The solid state power controller includes a first switching device and a second switching device arranged serially. ... Hamilton Sundstrand Corporation

05/26/16 / #20160149472

Cooling for electrical machines

A core for an electrical machine includes a core body, a winding, and a heat sink. The core body defines circumferentially offset winding slots. ... Hamilton Sundstrand Corporation

05/26/16 / #20160149469

Tail cone generator with integral speed increasing gearbox

A gas turbine engine is provided, comprising a tail cone and a low-pressure spool outside the tail cone. An input shaft may be coupled to the low-pressure spool and inside the tail cone. ... Hamilton Sundstrand Corporation

05/26/16 / #20160149448

Integral optimized flow channels for fluid-cooled motors and generators

An electric machine is provided. The electric machine may comprise an inlet and a stator fluidly coupled to the inlet. ... Hamilton Sundstrand Corporation

05/26/16 / #20160149400

Balancing parallel solid-state power controller channel currents systems and methods

According to various embodiments, a solid-state power controller system is provided with channel protection features. The solid-state power controller system is configured to provide the ability to have sharing control over an individual sspc channel that is operating in parallel with other sspc channels. ... Hamilton Sundstrand Corporation

05/26/16 / #20160149380

Power control assembly with vertically mounted power devices

A power control system includes a circuit board, a bus bar, and a distribution bar. The bus bar is connected to the circuit board and configured to receive input power from an external power source. ... Hamilton Sundstrand Corporation

05/26/16 / #20160148748

Magnetic component with balanced flux distribution

An embodiment of an inductor assembly includes at least a first inductive loop with a first wire formed into a plurality of conductive windings around a first magnetic core section. The first magnetic core section includes at least a radially inner magnetic core portion with a first inner effective radius, rin(1), and a radially outer magnetic core portion with a first outer effective radius, rout(1). ... Hamilton Sundstrand Corporation

05/26/16 / #20160146875

Electrical current system including voltage drop component

An electronic open-circuit current measuring circuit is configured to measure a current delivered between a current source and a load during an open circuit condition. The electronic open-circuit current measuring circuit includes an electronic voltage drop component electrically connected between a first buffer output and an electrical voltage difference calculating circuit. ... Hamilton Sundstrand Corporation

05/26/16 / #20160146682

Slip ring containment band

A slip ring has a rotating portion configured to take in signals from rotating electric transmission elements, and communicate those signals into a static portion. The rotating portion has a plurality of resistors which rotate. ... Hamilton Sundstrand Corporation

05/26/16 / #20160146542

Shell and tube heat exchanger

A heat exchanger is provided that includes a shell defining a first fluid space and one or more tubes within the first fluid space having interiors fluidly isolated therefrom. The tubes define a second fluid space and are configured to permit thermal energy transfer between the first fluid space and the second fluid space. ... Hamilton Sundstrand Corporation

05/26/16 / #20160146511

Heat exchanger assembly for aircraft ecs

An aircraft environmental conditioning system is disclosed that includes an air cycle system for conditioning a flow of hot compressed air by reducing its temperature and pressure. The air cycle system includes a heat exchanger having a heat rejection side in fluid communication with the airflow and a heat absorption side in fluid communication with external unconditioned air. ... Hamilton Sundstrand Corporation

05/26/16 / #20160146487

Heat exchanger contamination monitoring

Embodiments relate to heat exchanger contamination monitoring in an air conditioning system. An aspect includes receiving, by a contamination monitoring logic from a primary heat exchanger outlet temperature sensor, a first temperature comprising an air temperature at an outlet of a primary heat exchanger. ... Hamilton Sundstrand Corporation

05/26/16 / #20160146264

Thermal disconnect assembly with flight control permanent magnet generator for integrated drive generator

A thermal disconnect assembly for an integrated drive generator includes an input shaft, an output shaft, a eutectic solder, and a disconnect clutch. The input shaft is driven by an external mechanical source. ... Hamilton Sundstrand Corporation

05/26/16 / #20160146244

Variable shaft for hydraulic unit

A variable shaft of a hydraulic unit is provided including a body having a first end and a second opposite end. A first flange and a substantially identical second flange are integrally formed with the body of the shaft adjacent the second end. ... Hamilton Sundstrand Corporation

05/26/16 / #20160146243

Fixed shaft for hydraulic unit

A fixed shaft of a hydraulic unit is provided including a body having a first end and a second opposite end. A first flange and a substantially identical second flange are integrally formed with the body of the shaft adjacent the second end. ... Hamilton Sundstrand Corporation

05/26/16 / #20160146114

Environmental air conditioning system

An environmental air conditioning system is described for conditioning compressed air for supply as conditioned air. The system includes an airflow path to which the compressed air for ultimate distribution as conditioned air (i.e., airflow path compressed air) is supplied. ... Hamilton Sundstrand Corporation

05/26/16 / #20160146035

Hybrid ram air turbine

A ram air turbine is provided that utilizes a hybrid design. The ram air turbine includes a hydraulic power conversion device directly coupled to a turbine shaft and an electric power conversion device coupled to a drive shaft. ... Hamilton Sundstrand Corporation

05/26/16 / #20160144973

Aircraft fuel tank ullage gas management system

An aircraft fuel tank ullage gas management system is disclosed. The system includes an electrochemical cell having a membrane electrode assembly that includes a cathode and anode separated by an electrolyte separator. ... Hamilton Sundstrand Corporation

05/26/16 / #20160144965

Environmental control system utilizing cabin air to drive a power turbine of an air cycle machine

A system, which includes a plurality of heat exchangers and a compressing device, prepares a medium bled from a low-pressure location of an engine and flowing through a plurality of heat exchangers into a chamber. The compressing device is in communication with the plurality of heat exchangers and regulates a pressure of the medium flowing through the plurality of heat exchangers. ... Hamilton Sundstrand Corporation

05/19/16 / #20160141989

Two stage flux switching machine for an electrical power generation system

An electrical power generation system includes a flux switching machine (fsm) including an fsm rotor operatively connected to an fsm stator, the fsm rotor operatively connected to a shaft, wherein the fsm includes an electrical input/output (i/o) in electrical communication with the fsm stator, and a permanent magnet machine (pmm) including a pmm rotor operatively connected to a pmm stator, the pmm rotor operatively connected to a the shaft, wherein the pmm is electrically connected to the fsm.. . ... Hamilton Sundstrand Corporation

05/19/16 / #20160141160

Ion pumps and ion pump elements

An ion pump includes an evacuateable envelope having a chamber. A first and a second cathode are disposed within the chamber and spaced apart from one another. ... Hamilton Sundstrand Corporation

05/19/16 / #20160141145

Micro machined two dimensional faraday collector grid

A system for detecting particles in a gas stream comprises a faraday collector separating charged particles into positive and negative streams to be detected. The faraday collector includes a plurality of interdigitated wires, with a first plurality of wires charged with a positive potential and a second plurality of wires charged with a negative potential to separate particles in the gas stream into the positive and negative streams.. ... Hamilton Sundstrand Corporation

05/19/16 / #20160138875

Radiators

A modular radiator panel includes a coolant tube, a saddle surrounding a first portion of the coolant tube and a radiative sheet mounted to the saddle. The radiative sheet surrounds a second portion of the coolant tube, such that the coolant tube is sandwiched between the radiative sheet and the saddle. ... Hamilton Sundstrand Corporation

05/19/16 / #20160138874

Shear flow condenser

A plate-fin condenser includes a plate body defining an interior channel having a fluid inlet, a first interior channel section having a first cross-sectional area in fluid communication with the inlet, a second interior channel section downstream of the first interior channel section, and a fluid outlet in fluid communication with the converging interior channel. The second interior channel section has a second cross-sectional area that is smaller than the first cross-sectional area.. ... Hamilton Sundstrand Corporation

05/19/16 / #20160138873

Round heat exchanger

A heat exchanger includes a first fluid laminate defining a first fluid cavity that is in fluid communication with and downstream from a first inlet such that at least some of the first fluid flows into the first fluid cavity. The heat exchanger includes a second fluid laminate positioned adjacent to and in contact with the first fluid laminate. ... Hamilton Sundstrand Corporation

05/19/16 / #20160138650

Air cycle machine with bearing failure detection

A bearing monitoring system is provided including one or more bearings within a flow passage and a working fluid passing over at least one surface of the bearings. A first thermocouple is located in the flow passage upstream relative to the one or more bearings and configured to measure a first temperature of the working fluid and a second thermocouple is located in the flow passage downstream relative to the one or more bearings and configured to measure a second temperature of the working fluid. ... Hamilton Sundstrand Corporation

05/19/16 / #20160138615

Aspirator pump with dual high pressure streams

A three stream aspirator includes an upstream passage for receiving and discharging a motivator stream, a low pressure passage for receiving and discharging a low pressure stream, and a venturi for receiving and discharging the motivator stream and for drawing the low pressure stream through the low pressure passage. The aspirator body also includes a mixing passage for receiving and mixing the motivator stream and the low pressure stream, and a first aspirator outlet, located at the end of the mixing passage, configured to discharge the mixed stream from the aspirator. ... Hamilton Sundstrand Corporation

05/19/16 / #20160138473

Aircraft fuel system

A fuel supplying system includes a primary circuit for delivering fuel from a fuel tank to a primary circuit outlet. The system also includes a first supply circuit connected to the primary circuit outlet, the first supply circuit comprising a first supply circuit pump configured to pump fuel from the primary circuit outlet to engine fuel nozzles. ... Hamilton Sundstrand Corporation

05/19/16 / #20160138415

Magnetic control of guide vanes

A system for controlling an angular position of a component of an aircraft includes a component having a shaft that includes at least one magnet. The system also includes a housing configured to receive the shaft and including at least one coil configured to generate a magnetic field based on a current through the at least one coil.. ... Hamilton Sundstrand Corporation

05/19/16 / #20160137308

Ram air turbine with composite shaft

A ram air turbine includes a strut. The strut includes a turbine portion and an opposed vehicle connection portion. ... Hamilton Sundstrand Corporation

05/19/16 / #20160136570

Air separation module with increased permeate area

An air separation module includes a plurality of fibers located within a casing. A fiber membrane defines an exterior of each of the plurality of fibers. ... Hamilton Sundstrand Corporation

05/19/16 / #20160136556

Contaminant separator for a nitrogen generation system and method of removing contaminants from an airstream

A contaminant separator for a nitrogen generation system includes a swirl vane chamber defined by a chamber wall, the swirl vane chamber configured to receive an air bleed flow. Also included is a vane located within the swirl vane chamber, the vane configured to direct contaminants heavier than air radially outwardly toward the chamber wall. ... Hamilton Sundstrand Corporation

05/12/16 / #20160131432

Balanced heat exchanger systems and methods

A heat exchanger is provided having a first fluid circuit defining a first volume and configured to permit a first fluid to flow therethrough with a first fluid supply. The heat exchanger includes a second fluid circuit defining a second volume separate from the first volume and sharing at least one common wall with the first enclosed volume, and configured to permit a second fluid to flow therethrough from a second fluid supply. ... Hamilton Sundstrand Corporation

05/12/16 / #20160131431

Cold corner flow baffle

A heat exchanger for an aircraft includes a hot fluid inlet, a hot fluid outlet, a cold fluid inlet, a cold fluid outlet, and a header connected to the hot fluid outlet. The header includes a housing defining a header volume and a baffle separating the header volume into a first volume and a second volume, wherein the first volume and the second volume are in fluid communication with each other.. ... Hamilton Sundstrand Corporation

05/12/16 / #20160131266

Under vane valve piston structure

A valve has a sleeve with at least one outlet port in a radially outer surface. A piston is moveable within the sleeve along an axis. ... Hamilton Sundstrand Corporation

05/12/16 / #20160131262

Connector link for butterfly valve

A connector link for use in an actuation system for a butterfly valve has a central web extending between two generally cylindrical ends. There are bores formed in each of two generally cylindrical ends and bushings extend axially upwardly from a nominal face at each of the ends. ... Hamilton Sundstrand Corporation

05/05/16 / #20160123845

Vane position sensor installation within a turbine case

A measuring system for sensing vane positions that comprises a turbine, a target, and a bellows. The turbine includes a plurality of articulating vanes, with each vane being coupled to a sync ring that is configured to position the plurality of articulating vanes in accordance with a degree of rotation by the sync ring. ... Hamilton Sundstrand Corporation

05/05/16 / #20160123844

Vane position sensor installation within a turbine case

A measuring system for sensing vane positions that comprises a turbine, a target, and a sensor. The turbine includes a plurality of articulating vanes, with each vane being coupled to a sync ring that is configured to position the plurality of articulating vanes in accordance with a degree of rotation by the sync ring. ... Hamilton Sundstrand Corporation

05/05/16 / #20160123843

Sensor assembly and method of detecting position of a target through multiple structures

A sensor assembly includes a first structure and a second structure disposed radially outwardly of the first structure. Also included is a sensor body extending through the first and second structures, the sensor body having first and second ends, the second end disposed in an ambient environment. ... Hamilton Sundstrand Corporation

05/05/16 / #20160123732

Linkage assembly for sensor assembly and method of detecting angular position of a target through multiple structures

A sensor assembly includes a first structure and a second structure disposed radially outwardly of the first structure. Also included is a sensor body extending through the first and second structures, the sensor body having first and second ends, the second end disposed in an ambient environment. ... Hamilton Sundstrand Corporation

05/05/16 / #20160123731

Rotary-to-linear conversion for sensor assembly and method of detecting angular position of a target through multiple structures

A sensor assembly includes a first structure and a second structure disposed radially outwardly of the first structure. Also included is a sensor body extending through the first and second structures, the sensor body having first and second ends, the second end located radially outwardly of the second structure. ... Hamilton Sundstrand Corporation

05/05/16 / #20160123730

Sensor assembly for detecting position of target surface based on a reference portion of target surface and method

A sensor assembly includes a first structure and a second structure disposed radially outwardly of the first structure. Also included is a sensor body extending through the first and second structures, the sensor body having first and second ends, the first end disposed proximate a first environment and the second end located radially outwardly of the second structure. ... Hamilton Sundstrand Corporation

05/05/16 / #20160123729

Sensor assembly for detecting position of spring-loaded target surface and method of detecting position through multiple structures

A sensor assembly includes a first structure and a second structure disposed radially outwardly of the first structure. Also included is a sensor body extending through the first and second structures, the sensor body having first and second ends, the first end disposed proximate a first environment defined by the first structure and the second end located radially outwardly of the second structure. ... Hamilton Sundstrand Corporation

05/05/16 / #20160123390

Gear pump bearings with hybrid pads

A gear pump includes a drive gear mounted to a first gear shaft, a driven gear meshable with the drive gear, a plurality of journal bearings, and a first porting path. The first porting path is adapted to provide high pressure fluid communication from a discharge of the gear pump to a first hybrid pad location for a first journal bearing selected from the plurality of journal bearings, the first hybrid pad location circumferentially adjacent to a first fluid film location. ... Hamilton Sundstrand Corporation

05/05/16 / #20160123237

Variable pressure air supply

The present disclosure relates to engine buffer systems. An engine buffer system may include a low pressure supply line and a high pressure supply line. ... Hamilton Sundstrand Corporation

05/05/16 / #20160122034

Ice-shedding spinner for ram air turbine

A ram air turbine movable between a stowed position and a deployed position is provided including a rotatable hub assembly. A hub face is arranged at a first end of the rotatable hub assembly. ... Hamilton Sundstrand Corporation

05/05/16 / #20160122024

Heat exchanger

An air to air heat exchanger is provided including a core having a plurality of alternately stacked first layers and second layers. Each first layer includes a plurality of first modules having corrugated fins that define a plurality of first fluid flow paths. ... Hamilton Sundstrand Corporation

05/05/16 / #20160122004

Fuel intelligent crossfeed valve for detecting leakage in aircraft fuel tanks

A fuel management system may include a first fuel tank and a second fuel tank. The fuel management system may also include an intelligent crossfeed valve positioned between the first fuel tank and the second fuel tank and configured to allow fuel to flow between the first fuel tank and the second fuel tank. ... Hamilton Sundstrand Corporation

04/28/16 / #20160118863

Two-phase electric motor cooler

An electric motor system includes a motor housing and a stator core disposed within the motor housing. The stator core includes a back iron heat exchanger for passing fluid therethrough. ... Hamilton Sundstrand Corporation

04/28/16 / #20160118734

Single flex printed wiring board for electric system controller

According to an aspect of the present invention, there is provided an apparatus that comprises a first printed wiring board and a second printed wiring board that utilize connectors to communicatively couple the apparatus to a processing system. The apparatus further includes at least one additional connector configured to electrically and/or mechanically connect the first and second printed wiring boards so as to eliminate the need for a printed wiring board backplane.. ... Hamilton Sundstrand Corporation

04/28/16 / #20160116074

Pressure-regulating valves

A pressure-regulating valve assembly includes a sleeve body and a spool. The sleeve body has an interior surface and a sense port. ... Hamilton Sundstrand Corporation

04/28/16 / #20160116051

No-back check device

A device and method for determining whether a no-back device is functioning properly includes a no-back device coupling an input shaft and an output shaft. A no-back output gear is coupled to the output shaft, and a reaction gear is operably coupled to the no-back output gear. ... Hamilton Sundstrand Corporation

04/28/16 / #20160115052

System and method for the treatment of liquid waste in zero gravity

A waste handling assembly includes a hose with an inlet for accepting waste. A plurality of pretreatment tablets are located within the hose and are removeably attached to the hose.. ... Hamilton Sundstrand Corporation

04/28/16 / #20160114899

Electric system architecture included in a more-electric engine (mee) system

A more-electric engine (mee) system configured to operate in a plurality of operating modes includes a first power generating sub-system and a second power generating sub-system. The first power generating sub-system is configured to output electric power to a first power bus. ... Hamilton Sundstrand Corporation

04/07/16 / #20160099624

End turn support and cooling fixture

A generator rotor system having various features is disclosed. The generator rotor system has at least one main stage generator rotor with winding-pole sets spaced annularly about the rotor. ... Hamilton Sundstrand Corporation

04/07/16 / #20160099622

Hybrid conductor for generator stator winding

A generator comprises a rotor to be driven for rotation adjacent a stator. The stator includes laminated core teeth having circumferentially intermediate slots and a conductor received within the slots. ... Hamilton Sundstrand Corporation

04/07/16 / #20160099621

Lamination clamping structure

A generator rotor system having various features is disclosed. The generator rotor system has at least one main generator rotor with winding-pole sets spaced annularly about the rotor. ... Hamilton Sundstrand Corporation

04/07/16 / #20160097803

Built in test circuit for transient voltage suppressor devices

A built-in test system includes a control circuit, a transient voltage suppressor circuit, and a test switch. The control circuit is configured to receive a signal, and the transient voltage suppressor circuit includes first and second transient voltage suppressors connected in series between the signal and ground. ... Hamilton Sundstrand Corporation

04/07/16 / #20160097636

Position sensing device with rotary to linear magnification

A device and method for measuring the rotational position of a rotating feature, the device employing rotary to linear magnification. A connecting member is operatively connected to the rotating feature, the connecting member extending through one or more structural layers of an enclosure. ... Hamilton Sundstrand Corporation

04/07/16 / #20160097601

Heat transfer fins

A heat exchanger includes a fin body and a heat pipe having a first portion disposed on or at least partially within the fin body and a second portion extending from the fin body, wherein the heat pipe includes a hollow core filled with a heat pipe working fluid having a liquid phase that is configured to transition to gas and to be returned to the liquid phase at an operational temperature of the heat exchanger.. . ... Hamilton Sundstrand Corporation

04/07/16 / #20160097401

Air cycle machine strut plate assembly

According to one aspect, an air cycle machine includes a fan rotor, a diffuser cone axially aligned with the fan rotor, and a strut plate assembly. The strut plate assembly includes a first strut plate and a second strut plate with an ejector formed between the first strut plate and the second strut plate. ... Hamilton Sundstrand Corporation

04/07/16 / #20160097400

Impeller for engine-mounted boost stage fuel pump

A impeller for a centrifugal pump has an inducer section. The inducer section has first and second pluralities of blades, each having a plurality of polygonal cross-sections defined by a plurality of vertices. ... Hamilton Sundstrand Corporation

04/07/16 / #20160097399

Volute for engine-mounted boost stage fuel pump

A housing has walls that define a volute passage and a diffuser passage fluidly connected to the volute passage. The volute passage has a first subsection and a second subsection, each having cross-sectional areas defined by tabular data. ... Hamilton Sundstrand Corporation

04/07/16 / #20160097362

Variable area orifice for an engine

A flow control system for a fuel includes an adjustable speed control valve configured to control a flow of fuel. A variable area orifice is arranged upstream of the speed control valve and is configured to control the flow of the fuel to the speed control valve. ... Hamilton Sundstrand Corporation

04/07/16 / #20160097346

Electric boost actuation system for translating rings

An actuation system for a gas turbine engine oriented about a centerline includes a translating ring, at least one hydraulic actuator, and at least one electric actuator. The translating ring is oriented about the centerline and configured to move axially along the centerline. ... Hamilton Sundstrand Corporation

04/07/16 / #20160097284

Fan rotor with cooling holes

A disc for a fan rotor (with a pilot to connect to a rotating shaft, a hub and a plurality of blades) includes a flat circular portion connecting to the pilot at an inner edge and to the hub at an outer edge; a plurality of first circular cooling holes of a first diameter located around the inner edge of the disc; and a plurality of second circular cooling holes of a second diameter located around the outer edge of the disc, wherein the second diameter is larger than the first diameter.. . ... Hamilton Sundstrand Corporation

04/07/16 / #20160096620

Aircraft taxiing system

An aircraft taxiing system includes a drive wheel, mounted between the wheels of an aircraft's landing gear. The drive wheel is selectively deployable through an actuation system into a position in which it engages the ground in order to move the aircraft. ... Hamilton Sundstrand Corporation

03/31/16 / #20160094173

Systems and methods for controlling high speed motor

A method for controlling an electric motor includes inputting a quadrature-axis current (iq) and a direct-axis current (id) into an electric motor, receiving speed feedback indicative of the speed of the electric motor, determining whether the speed of the electric motor increases given the input iq, and controlling the id to increase the speed of the electric motor by selectively weakening the electromagnetic field if the speed of the electric motor does not increase given the input iq.. . ... Hamilton Sundstrand Corporation

03/31/16 / #20160094162

Synchronization module for motor speed control

A system includes a first control system configured to operate at a first clock speed, a second control system configured to provide an output to the first control system and configured to operate at a second clock speed different from the first clock speed, and a synchronization module operatively connecting the first control module to the second control module and configured to synchronize the first control system and the second control system such that the output of the second control system is timed to synchronize with the first clock speed.. . ... Hamilton Sundstrand Corporation

03/31/16 / #20160091125

Transition joint for welding dissimilar materials

A fluid connection comprises a first component having a fluid connection portion and formed of a first material. A second component has a second fluid connection and is formed of a second material, with the first and second materials being dissimilar. ... Hamilton Sundstrand Corporation

03/31/16 / #20160091016

Thrust bearing assembly

A hydrodynamic thrust bearing has an annular plate, a plurality of bearing foils, and a plurality of bumper foils. The annular plate has a first face and a second face opposite the first face. ... Hamilton Sundstrand Corporation

03/31/16 / #20160091015

Journal air bearing with air-film-supply vent

A journal air bearing is provided. The bearing includes a top foil configured to receive the shaft, an intermediate foil disposed radially outboard the top foil, and a journal sleeve disposed radially outboard the intermediate foil. ... Hamilton Sundstrand Corporation

03/31/16 / #20160090984

Vane pumps

A rotor for a pump includes a rotor body, an undervane cavity defined in the rotor body configured to accept an underside of a vane, an outer surface on a periphery of the rotor body for defining overvane cavities within a liner as a function of an inner cammed surface of the liner, and a pressure balance aperture defined in the rotor body fluidly connecting the undervane cavity to at least one of the outer surface.. . ... Hamilton Sundstrand Corporation

03/31/16 / #20160090917

Engine bleed air system

An engine bleed air system having one or more taps in the compressor section of an aircraft engine, for example a low pressure tap and a high pressure tap. The low pressure tap is fluidly connected to the compressor of a turbo-compressor and the high pressure tap is fluidly connected to the turbine of the turbo-compressor. ... Hamilton Sundstrand Corporation

03/31/16 / #20160090869

Method of installing a diffuser in an air cycle machine

A method of installing a diffuser in an air cycle machine includes placing a first housing on a shaft, placing a seal plate on the shaft, and placing a diffuser on the shaft. Next, the diffuser and the seal plate are aligned with an alignment tool. ... Hamilton Sundstrand Corporation

03/31/16 / #20160090183

Flight deck tap off for mixer

A tap off for use in a mixer comprises a pair of cylindrical portions, with a first cylindrical portion extending in a direction that will be inward toward a mixer when the tap off is mounted on a mixer. The first cylindrical portion defines a first port inlet and communicates into a second cylindrical portion. ... Hamilton Sundstrand Corporation

03/31/16 / #20160090181

Aircraft sofa convertible to bed

An aircraft sofa convertible to a bed is provided. The sofa-bed includes at least one seat including a seating surface and back support. ... Hamilton Sundstrand Corporation

03/24/16 / #20160085259

Visual failure indication for selector lever

A selector lever that comprises a shaft rotatably attached to a pivot and arranged between two detent plates, each of the detent plates having a plurality of slots arranged for receiving a detent pin located on the shaft. Each of the plurality of slots on each of the two detent plates is defined by a radial depth. ... Hamilton Sundstrand Corporation

03/24/16 / #20160085258

Selector lever with failure indication features

A selector lever with redundant detent pins and detent plates and a method for using the selector lever to test for a failure of one or more detent pins. The detent plates include a plurality of slots connected by a channel that corresponds to a disengaged position, enabling the detent pin to be moved from one slot to another. ... Hamilton Sundstrand Corporation

03/24/16 / #20160085217

Active dead band for noise reduction in high response high bandwidth control systems

A control system comprises an active dead band, coupled to a feedback path of the control system, configured to receive a first signal derived from a motor position signal of the feedback path of the control system and a utilize, in accordance with the signal, a set of thresholds to prevent feedback noise within a driveline of the control system.. . ... Hamilton Sundstrand Corporation

03/24/16 / #20160084580

Multi-layer heat exchanger and method of distributing flow within a fluid layer of a multi-layer heat exchanger

A multi-layer heat exchanger includes a fluid layer defined by a first sheet and a second sheet, the fluid layer configured to route a fluid in a predominant flow direction. Also included is a fluid inlet port disposed proximate an inlet end region of the fluid layer, wherein the fluid inlet port is oriented to introduce the fluid into the fluid layer in a direction substantially perpendicular to the predominant flow direction, wherein the inlet end region of the fluid layer comprises a non-linear geometry. ... Hamilton Sundstrand Corporation

03/24/16 / #20160084395

Valve including multilayer wear plate

A valve is provided and includes a component including a surface and a wear plate including a surface disposed in sliding engagement with the surface of the component. The surface of the wear plate includes a corrosion resistant substrate, a secondary layer disposed on a surface of the corrosion resistant substrate, a noble metal layer disposed on a surface of the secondary layer and a tertiary layer disposed on a surface of the noble metal layer.. ... Hamilton Sundstrand Corporation

03/24/16 / #20160084393

Anti-flutter check valve

A check valve includes a housing, a hinge pin connected to the housing, and a flap with a cam surface having stability points, the flap rotatably connected to the hinge pin. The check valve further includes a stop pin connected to the housing, a spring mounted on the stop pin, the spring having an arm, and a detent element mounted on the arm of the spring. ... Hamilton Sundstrand Corporation

03/24/16 / #20160084264

Variable diffuser vane

A vane for a variable diffuser includes a body with an inlet end and an outlet end, a leading surface extending from the inlet end to the outlet end, a trailing surface opposite the leading surface and extending from the inlet end to the outlet end, a first surface extending from the inlet end to the outlet end, and a second surface opposite the first surface and extending from the inlet end to the outlet end. The vane further includes a first cavity on the first surface of the vane adjacent the inlet end, a second cavity on the first surface of the vane adjacent the outlet end, a third cavity on the second surface of the vane adjacent the inlet end, and a fourth cavity on the second surface of the vane adjacent the outlet end.. ... Hamilton Sundstrand Corporation

03/24/16 / #20160083851

Surface treatment to passivate sublimation surfaces to hydrophobic contaminants

The sublimation capability of a porous metal plate used in a sublimator is maintained by heating the porous metal plate at an elevated temperature in a flowing stream of oxygen for an extended period of time to form an oxidized surface. A short chain molecule, such as citric acid, is attached to the oxidized surface having multiple functional carboxylate groups and no hydrophobic tail.. ... Hamilton Sundstrand Corporation

03/24/16 / #20160083099

Fan and compressor housing for an air cycle machine

A housing for an air cycle machine includes a housing with a first end and a second end opposite the first end, a first duct adjacent the first end of the housing with an air inlet and an air outlet, a second duct adjacent the second end of the housing with an air inlet and an air outlet, and a collar in the housing extending into the second duct. The collar includes a first annular surface facing radially inward and configured to engage a journal bearing and a second annular surface facing radially inward and configured to engage a rotating shaft, wherein the second surface is monolithic with the housing.. ... Hamilton Sundstrand Corporation

03/24/16 / #20160083080

Cone brake no-back assembly with gain reduction spring and method

A no-back assembly includes a first disc coupled to a first shaft and arranged radially outward of the first shaft. Also included is a first brake arranged radially outward of the first disc. ... Hamilton Sundstrand Corporation

03/24/16 / #20160083079

Selector lever with independent slides

A selector lever with redundant detent pins and detent plates and a method for using the selector lever to test for a failure of one or more detent pins. The selector lever includes at least two slides for independently moving the detent pins within the detent plates. ... Hamilton Sundstrand Corporation

03/24/16 / #20160083078

Device for preventing rotational movement of failed selector lever

A selector lever with two detent plates and corresponding detent pins that travel along a shaft includes a float that moves with each of the detent pins. When a detent pin fails, a float pin remains engaged with a catch, thereby preventing rotational movement of the shaft.. ... Hamilton Sundstrand Corporation

03/17/16 / #20160076680

Weldless transfer tube assembly

A weldless assembly comprises a plurality of tubes, wherein the plurality of tubes includes an inner tube, an intermediate tube, and an outer tube; a first closure end configured to cap a first side of the plurality of tubes; and a second closure end configured to cap a second side of the plurality of tubes.. . ... Hamilton Sundstrand Corporation

03/17/16 / #20160076637

Integrated gearbox lube and control system

A gearbox system includes a gearbox having integrated therein a pump system, a plurality of fluid passages and a clutch control system. The pump system is in fluid communication with the clutch control system via the fluid passages to flow at least one pressurized stream. ... Hamilton Sundstrand Corporation

03/17/16 / #20160076554

Backing plate

An annular backing plate for a diffuser in a centrifugal compressor comprises an inner diameter and an outer diameter disposed radially opposite the inner diameter. The backing plate also includes a first surface extending between the inner diameter and the outer diameter of the backing plate. ... Hamilton Sundstrand Corporation

03/03/16 / #20160059164

Fluid inlet screen being moveable to bypass position

A fluid filter assembly comprises an outer housing, a filter element including a face, and a filter portion extending from the face. The housing has an inlet and an outlet. ... Hamilton Sundstrand Corporation

02/25/16 / #20160057890

Heat exchange device in directed flow system

A method of cooling a component with a heat exchange device includes pulling air into a central airway in a heat exchange device using a blower; directing the air from the blower through a diffuser and across a heat sink base, wherein a first component positioned underneath the heat sink base is cooled when the air passes over the heat sink base; and directing the air out from the diffuser and across a second component to cool the second component.. . ... Hamilton Sundstrand Corporation

02/25/16 / #20160057844

Grounded diode pack

The present disclosure relates to generators and their components. Specifically, a grounded diode pack is disclosed herein. ... Hamilton Sundstrand Corporation

02/25/16 / #20160056737

Reduction technique for permanent magnet motor high frequency loss

A system including a motor loss reducing controller system utilizing input band-shifting, an integral control architecture and inverse band-shifting is disclosed. The motor loss reducing controller system may provide correction of harmonic currents flowing to a pm motor from a motor controller. ... Hamilton Sundstrand Corporation

02/25/16 / #20160056141

Solid-state power controller channel protection systems and methods

A scalable solid-state power controller system is provided with channel protection features. A plurality of output channels may be combined to provide a combined channel output. ... Hamilton Sundstrand Corporation

02/18/16 / #20160050791

Ram air fan and power electronics cooling systems

A power electronics cooling system includes a ram air fan with one or more blades and a ram air fan motor connected via an output shaft. The ram air fan draws in air and passes it across a heat exchanger to cool one or more cooling liquids. ... Hamilton Sundstrand Corporation

02/18/16 / #20160049380

Wire bonds for electronics

A circuit element includes a semiconductor chip and a wire for connecting between the semiconductor chip and an additional circuit element. A plurality of wire bond connections electrically connect the wire and the semiconductor chip. ... Hamilton Sundstrand Corporation

02/18/16 / #20160047561

Multi-port compressor manifold with integral bypass valve

A compressor manifold includes a primary section having a primary inlet port, a first primary outlet port, and a second primary outlet port, the primary section configured to receive a fluid from the primary heat exchanger through the primary inlet port and direct the fluid to at least one compressor through the first and second primary outlet ports. A secondary section includes a first secondary inlet port, a second secondary inlet port, and a secondary outlet port, the secondary section configured to receive the fluid from the at least one compressor through the first and second secondary inlet ports and direct the fluid to the secondary heat exchanger through the secondary outlet port. ... Hamilton Sundstrand Corporation

02/18/16 / #20160047550

Distributed fuel control system

Distributed fuel control system and methods are disclosed. A distributed fuel control system may comprise a controller, a fuel delivery system, and fuel delivery system sensors and combustion sensors. ... Hamilton Sundstrand Corporation

02/18/16 / #20160047478

Actuator system

An actuator system having various features is disclosed. An actuator system may have a first and a second electrohydraulic servo valve. ... Hamilton Sundstrand Corporation

02/18/16 / #20160047358

Turbine nozzle with relief cut

A turbine nozzle for an air cycle machine includes a disk having a central axis and a plurality of airfoils extending from a surface of the disk. The plurality of airfoils is arranged radially about the disk section to direct a flow of a fluid passing thereby. ... Hamilton Sundstrand Corporation

02/18/16 / #20160047319

Starter-generator modules for gas turbine engines

A starter-generator module for a gas turbine engine includes an inner stator portion with an armature defining a rotation axis and an outer rotor portion disposed about the rotation axis. The outer rotor portion includes a permanent magnet and a gear teeth member. ... Hamilton Sundstrand Corporation

02/18/16 / #20160047272

Rotary machine air deflector

A rotary machine includes a shaft extending through the rotary machine; a bearing positioned around the shaft; and an air deflector mounted on the shaft between the bearing and the shaft, wherein the air deflector has a first cylindrical body portion that is connected to a second cylindrical body portion with a ramp portion. A method for cooling a bearing positioned around a rotating shaft includes providing air to a cavity that surrounds a rotating shaft; deflecting the air towards an inner surface of a bearing that is positioned radially outward of the rotating shaft, wherein the air is deflected with an air deflector that is mounted on the rotating shaft; and flowing the air between an outer surface of the air deflector and the inner surface of the bearing.. ... Hamilton Sundstrand Corporation

02/18/16 / #20160047267

Ram air turbine pump leakage control

An exemplary method of controlling fluid flow in a ram air turbine assembly, includes redirecting flow moving in an axial direction against the surface of a drive shaft to flow moving in a radial direction away from the drive shaft to limit flow of the fluid from a hydraulic pump to a generator.. . ... Hamilton Sundstrand Corporation

02/18/16 / #20160047119

Noise abatement for aircraft components and systems in aircraft bays

An acoustic absorption material may comprise an outer layer and a first layer of batting material proximate to the outer layer. A first layer of room temperature vulcanized silicone (rtv) may be proximate to the batting material. ... Hamilton Sundstrand Corporation

02/18/16 / #20160046383

Stow lock pawl for a rat actuator

An actuator for a ram air turbine system includes a piston rod that is cylindrical in shape and centered about a centerline, and stow lock pawls supported by the piston rod and able to move radially. Each of the stow lock pawls has a crown with a crown radius. ... Hamilton Sundstrand Corporation

02/18/16 / #20160046247

Electric system architecture for more-electric engine accessories

An electric system and method includes a flux regulated permanent magnet generator configured to provide power for an accessory electric system. The accessory electric system includes an engine accessory and a voltage regulator. ... Hamilton Sundstrand Corporation

02/11/16 / #20160043613

Thermally conductive rotor wedges

A wedge for an electrical machine core includes a hollow wedge body including a wedge wall extending in an axial direction. The wedge wall separates an interior hollow space of the wedge body from a space exterior to the wedge body. ... Hamilton Sundstrand Corporation

02/11/16 / #20160043606

Generator stator installation

An electrical generator section includes a case, a screen ring, first and second stator sections, and a rotor. The case has a plurality of circumferentially-spaced axial flow cooling air inlets, and first and second electrical connector ports. ... Hamilton Sundstrand Corporation

02/11/16 / #20160043023

System and method for metal matrix mounting scheme

An integrated circuit assembly element formed via an additive manufacturing technique, such as mixing a conductive material with a memory metal to form a portion of a substrate in desired locations, such as along the footprint of die, are discussed herein. In operation (e.g. ... Hamilton Sundstrand Corporation

02/11/16 / #20160042854

Heat transfer in magnetic assemblies

A magnetic assembly includes a winding and a housing disposed about the winding. The housing includes an interior surface contoured to conform to the winding to facilitate heat transfer between the winding and the housing. ... Hamilton Sundstrand Corporation

02/11/16 / #20160040799

Check valve housing

A check valve housing for a check valve is provided and includes check valve housing body. First and second hinge supports extend from the check valve housing body. ... Hamilton Sundstrand Corporation

02/11/16 / #20160040793

Check valve with backbone enhanced petals

A check valve includes a base, two sidewalls extending from the base and a pin coupled between the two sidewalls. The valve also includes a flapper pivotably coupled to the pin to occupy respective open and closed positions in accordance with a pressure differential of a fluid flow across the check valve, the flapper including a plate and a backbone that is thicker than the base and the extends along an entire length of the plate.. ... Hamilton Sundstrand Corporation

02/11/16 / #20160040792

Check valve flapper

A check valve flapper for a check valve is provided and includes a flapper body and a hinge portion extending from the flapper body. The hinge portion includes a lower ear, a middle ear, and an upper ear. ... Hamilton Sundstrand Corporation

02/11/16 / #20160040599

Combustion system, apparatus and method

Combustion systems for a gas turbine engines are provided. The combustion system is configured to provide a fuel-air mist to achieve light-off during high altitude start (e.g., at altitudes greater than 45,000 ft.) without flame out. ... Hamilton Sundstrand Corporation

02/11/16 / #20160039532

Remote power source pump system

A pump system includes an actuator which can be retracted by a fluid in the pump system. Also included is a pump with a first drive coupling and a rotational power device with a second drive coupling. ... Hamilton Sundstrand Corporation

02/04/16 / #20160036363

Systems utilizing a controllable voltage ac generator system

An electrical system for a motorized system can include a controllable voltage ac generator configured to be connected to a power generation unit shaft and configured to convert rotational energy to electrical energy, wherein the controllable voltage ac generator is configured to output a desired voltage irrespective of a change in a rotational speed of the controllable voltage ac generator, and an ac bus operative to connect the controllable voltage ac generator to an ac electrical device.. . ... Hamilton Sundstrand Corporation

02/04/16 / #20160036293

Actuator device and method of converting rotational input to axial output with rotary flexure mechanism

An actuator device includes a motor and a reduction device operatively coupled to the motor and oriented about a central axis, the reduction device configured to modify an input angle of rotation provided by the motor to an output angle of rotation. Further included is a rotary flexure mechanism that includes a rotary flexure operatively coupled to an output portion of the reduction device. ... Hamilton Sundstrand Corporation

02/04/16 / #20160036277

Strand cross-section for high fill-factor electric machine windings

A winding configuration for an electric machine includes a stator core with a plurality of winding slots, a plurality of conductor strands distributed in a winding slot of the plurality of winding slots, and an insulation matrix that surrounds each of the plurality of the conductor strands. The winding slot includes a slot cavity with a cross-section area and the plurality of distributed conductor strands are configured to maximize slot fill factor.. ... Hamilton Sundstrand Corporation

02/04/16 / #20160036183

Propeller deicing brush block

A brush block assembly and a method of assembling the same are described. The brush block assembly includes two or more brushes arranged in one or more rows, each of the two or more brushes comprised of a pressed electrically conductive material with an integral lead wire and a terminal, and one or more terminal studs, each of the two or more brush blocks within a same one of the one or more rows being separated by one of the one or more terminal studs, a helical spring coupled respectively to each of the two or more brushes, and insulated wires from a power supply and the respective terminal of each of the two or more brushes within the same one of the one or more rows being retained by the one of the one or more terminal studs in the one of the one or more rows.. ... Hamilton Sundstrand Corporation

02/04/16 / #20160032969

Gear pump bearings with hybrid pads

A journal bearing assembly includes a first journal bearing disposed about a longitudinal end of a gear shaft and spaced a first distance from a first axial gear face. A first fluid film location and a first hybrid pad location are annularly between an inner surface of the first journal bearing and an outer surface of the gear shaft. ... Hamilton Sundstrand Corporation

02/04/16 / #20160032922

Gear pump drive gear stationary bearing

One embodiment includes a gear pump with a drive gear, a gear shaft passing through the drive gear, and a stationary journal bearing. Also included is a fluid film location annularly between a surface of the stationary journal bearing and a surface of the gear shaft, and a hybrid pad location on the stationary journal bearing adjacent the fluid film location. ... Hamilton Sundstrand Corporation

02/04/16 / #20160032841

Environmental control generator system and apparatus

An environmental control power generation system is provided. The system may include a turbine and a generator. ... Hamilton Sundstrand Corporation

02/04/16 / #20160031566

Screen and screen elements for fuel systems

A screen element for a fuel system includes a first screen and a second screen. The first screen defines a first aperture and the second screen defines a second aperture. ... Hamilton Sundstrand Corporation

01/28/16 / #20160028392

Solid state power controller

A solid state power controller including: a plurality of pairs of fets connected in parallel, each pair comprising a first, forward-facing fet and a second, backward-facing fet connected by their respective sources; gate drive means for switching said fets on and off; and means for isolating the sources of the backwards-facing fets of the plurality of pairs of fets from each other and operating the backwards-facing fets in 3rd quadrant operation mode.. . ... Hamilton Sundstrand Corporation

01/28/16 / #20160028341

Systems and methods for zero common mode voltage

An electrical system includes a converter having an h-bridge. The h-bridge includes a first set of transistors electrically connected in series and a second set of transistors electrically connected in series. ... Hamilton Sundstrand Corporation

01/28/16 / #20160028338

Field programmable gate array based brushless dc motor speed detector

As each tach pulse time duration is known a priori, it may be utilized by a system to an advantage. A counter may be started on the falling edge of a tach pulse. ... Hamilton Sundstrand Corporation

01/28/16 / #20160028321

Power converters for aircraft starter/generators

A method of converting power includes receiving alternating current (ac) at the first phase leg set of a power conversion system having first and second phase legs sets connected by direct current (dc) leads. The first phase leg set rectifies the received ac power into dc power by switching outer switches of the first phase leg set into an off state. ... Hamilton Sundstrand Corporation

01/28/16 / #20160028216

Interconnects for electrical power distribution systems

A contactor interconnect includes a lead post, a bus bar post and a plurality of electrically conductive heat rejection components. The lead post electrically connects to the bus bar post in series through the plurality of heat rejection components. ... Hamilton Sundstrand Corporation

01/28/16 / #20160026160

Coordination of variable groupings of control channels

A system for dynamically controlling the functionality of control channels in an electrical system includes a plurality of control channels, each operatively connected to at least one state change device connected to an electrical component. Each control channel is operatively connected to at least one adjacent control channel by a control channel communication line. ... Hamilton Sundstrand Corporation

01/28/16 / #20160025426

Heat transfer plate

A heat transfer device includes a body defining a fluid inlet and a fluid outlet, a fluid channel defined within the body, the fluid channel connected in fluid communication between the fluid inlet and the fluid outlet, and a plurality of pins disposed within the fluid channel such that flow passing through the fluid channel passes around the plurality of pins to facilitate heat transfer to the fluid from the body.. . ... Hamilton Sundstrand Corporation

01/28/16 / #20160025425

Heat exchanger with slotted guard fin

In one aspect, a plate fin heat exchanger is provided. The heat exchanger includes a plurality of finned cold layers configured to conduct a first fluid and a plurality of finned warm layers configured to conduct a second fluid. ... Hamilton Sundstrand Corporation

01/28/16 / #20160025423

Heat transfer plate

A heat transfer device includes a body defining fluid inlet and fluid outlet. The body further defines a plurality of channels defined within the body in fluid connection between the fluid inlet and the fluid outlet, wherein the channels are fluidly isolated from one another between the fluid inlet and the fluid outlet.. ... Hamilton Sundstrand Corporation

01/28/16 / #20160025422

Heat transfer plate

A heat transfer device includes a body defining a fluid inlet and fluid outlet, and a plurality of channels defined within the body in fluid communication between the fluid inlet and the fluid outlet, wherein the channels are interlaced and fluidly isolated from one another between the fluid inlet and the fluid outlet. The body can define a unitary matrix fluidly isolating the channels from one another between the fluid inlet and the fluid outlet.. ... Hamilton Sundstrand Corporation

01/28/16 / #20160025420

Flow distributor for heat transfer plate

A flow distributor for a heat transfer device having a plurality of channels includes a sheath defining a plurality of distributor holes, each distributor hole configured to be in fluid communication with a respective channel inlet of each channel of the heat transfer device and an insert defining a plurality of fluid channels therein and a fluid inlet, each fluid channel in fluid communication with the fluid inlet. The insert is disposed within the sheath to seal the fluid channels with each fluid channel in fluid communication with a respective one of the distribution holes. ... Hamilton Sundstrand Corporation

01/28/16 / #20160025015

Ecology fuel return systems

A shut-off valve includes a float and a negative g control component. The float is configured to occlude a tank outlet at a first fluid level and 1 g and unocclude the tank outlet at a second fluid level and 1 g. ... Hamilton Sundstrand Corporation

01/28/16 / #20160024410

Fuel additive and method of preparing the same

Disclosed is a fuel additive which may remove varnish precursor species in a jet fuel. In particular, the fuel additive may be a multi-functional adsorbent which includes a 2-dimensional or 3-dimensional interconnected mesoporous or mixed micro-/mesoporous framework and a plurality of internal cavities formed in the mesoporous or mixed micro-/mesoporous framework and the internal cavities include charged sites to accommodate fuel contaminants for varnish formation, such as metal ions and heteroatomic contaminants. ... Hamilton Sundstrand Corporation

01/28/16 / #20160023774

Dual-stage gear pump with reduced pressure ripple

A fuel system includes a fuel gathering system in fluid communication with a fuel storage container, and a fluid pump assembly in fluid communication with the fuel gathering system. The fluid pump assembly includes a main gear pump stage and a first flow attenuator. ... Hamilton Sundstrand Corporation

01/28/16 / #20160023773

Hybrid electric pulsed-power propulsion system for aircraft

A propulsion system has a gas turbine engine optimized to operate at a single operating condition corresponding to a maximum continuous power output of the gas turbine engine, an electric motor system, an electric machine rotatably attached to the gas turbine engine and electrically connected to the electric motor system, and an energy storage system having bi-directional electrical connections with the electric motor system and the electric machine. A method of operating the propulsion system including operating the gas turbine engine for a first period of time to provide electric power to the electric motor system and to recharge the energy storage system, turning off the gas turbine for a second period of time, and discharging the energy storage system to operate the electric motor system during the second period of time.. ... Hamilton Sundstrand Corporation

01/21/16 / #20160020675

Electrical machines with liquid cooling

A core for an electrical machine has a segmented body with first segments and second segments. The first segments extend from a radially inner portion of the segmented body to a radially outer portion of the segmented body. ... Hamilton Sundstrand Corporation

01/21/16 / #20160020673

Rotor cooling

A rotor for an electrical machine includes a rotor core with a plurality of circumferentially spaced apart, axially extending wedges mounted to the rotor core. A rotor sleeve is mounted radially outboard of the rotor core. ... Hamilton Sundstrand Corporation

01/21/16 / #20160018374

Bell cap aerosol adaptor

A method of testing an air sample and/or testing equipment may comprise introducing aerosolized sample particles into an air flow to create sample air upstream from an air quality sampling device. The method may include introducing the sample air to an offset sample inlet of a bell cap inlet adaptor coupled to a sample tube. ... Hamilton Sundstrand Corporation

01/21/16 / #20160018012

Check valve hinge pin

One embodiment includes a hinge pin with a first end, a second end, and an interference portion located at or near the second end. A ratio of a length of the interference portion to an outer diameter of the interference portion ranges between approximately 0.3019 and 0.3341.. ... Hamilton Sundstrand Corporation

01/21/16 / #20160017918

Ball separator for ball bearing assembly

A ball bearing assembly including a plurality of ball bearings and one or more ball separators. Each of the ball separators comprises two pockets, each pocket including a contact surface formed having a shape complementary to the shape of the ball bearings, with one or more lubrication channels formed therein. ... Hamilton Sundstrand Corporation

01/21/16 / #20160016653

Aircraft component rotary device

A rotary device assembly is provided and includes an input shaft coupled to a torque generating device, an output shaft and a rotary device disposed to transmit first torque from the input shaft to the output shaft and configured with no-back capability to prevent second torque applied to the output shaft from being transmitted to the input shaft in an event the second torque deceeds a torque-limiting threshold and the no-back capability and torsional lock-up capability to prevent an overload of the torque generating device in an event the second torque exceeds the torque-limiting threshold.. . ... Hamilton Sundstrand Corporation

01/14/16 / #20160013734

Solid-state power converters

. . A phase leg for a multilevel inverter includes a first direct current lead, an outer solid-state switch, an inner solid-state switch, and a midpoint-clamping device. The outer solid-state switch device is connected to the first direct current lead. ... Hamilton Sundstrand Corporation

01/14/16 / #20160013693

Strand layout for reduced ac winding loss

A component to generate a magnetic field and a method of designing windings, comprised of a plurality of strands, within each slot of the component, are described. The component includes a plurality of slots. ... Hamilton Sundstrand Corporation

01/14/16 / #20160010902

Expendable driven heat pump cycles

A cooling system with a compression cooling cycle for a working fluid that passes an expendable fluid through a warm side heat exchanger for the cooling system to cause the expendable fluid to vaporize and thus absorb heat from the working fluid by way of latent heat or enthalpy of vaporization and then running the vaporized expendable through a turbine that drives a compressor for the cooling system.. . ... Hamilton Sundstrand Corporation

01/14/16 / #20160010757

Valve flapper spring stop mechanism

A check valve with a housing and a first flapper rotatable about an axis between open and closed positions includes a first spring mechanism operatively positioned between a static component and the first flapper. When the first flapper is in the closed position there is a distance between the first spring mechanism and either the static component or the first flapper.. ... Hamilton Sundstrand Corporation

01/14/16 / #20160010738

Harmonic drive and method of assembling

A harmonic drive includes a flexible gear. Also included is a ring gear that meshes with the flexible gear. ... Hamilton Sundstrand Corporation

01/14/16 / #20160010701

Harmonic drive assembly with selective disconnect and method

A harmonic drive assembly with selective disconnect includes a motor with a motor drive shaft, a harmonic drive operatively coupled to the motor drive shaft, and a wave generator operatively coupled to the motor drive shaft and a flex gear of the harmonic drive. Also included is a ring gear of the harmonic drive operatively coupled to the flex gear with a plurality of ring gear teeth configured to mesh with a plurality of flex gear teeth. ... Hamilton Sundstrand Corporation

01/14/16 / #20160010491

Hot environment vane angle measurement

A turbine is provided and includes an outer duct, a turbine casing formed to define a turbine interior, the turbine casing being disposed within the outer duct to define an annulus, a vane element pivotably coupled to the turbine casing via a spindle to extend spanwise into the turbine interior and a sensor element supportively coupled to the outer duct and configured to sense a characteristic of the spindle within the annulus from which a pivot angle of the vane element is derivable.. . ... Hamilton Sundstrand Corporation

01/14/16 / #20160010469

Hybrid manufacturing for rotors

A method for manufacturing a rotor includes manufacturing a hub using a conventional manufacturing process and manufacturing an airfoil on the hub using a layer-by-layer additive manufacturing process. A rotor includes a hub that has been manufactured with a conventional manufacturing process and an airfoil that has been manufactured on the hub with a layer-by-layer additive manufacturing process.. ... Hamilton Sundstrand Corporation

01/07/16 / #20160007473

Method for fabricating printed electronics

A method for fabricating printed electronics and optical components includes printing a trace of electrically conductive, semiconductive or insulating material on a substrate and shrinking the substrate to a target size. The material can include an ink, solution, dispersion, powder, slurry, paste or the like. ... Hamilton Sundstrand Corporation

01/07/16 / #20160007462

Method for manufacturing layered electronic devices

A method for fabricating printed electronics includes printing a trace of an electrical component on a first substrate to form a first layer. The method further includes printing a trace of an electrical component on at least one additional substrate to form at least one additional layer. ... Hamilton Sundstrand Corporation

01/07/16 / #20160005524

Immersion cooled toroid inductor assembly

An inductor assembly includes a substrate that is configured to circulate coolant; an outer cylindrical housing arranged on the substrate and defining an internal cavity; a wound inductor core arranged in internal cavity; a condenser arranged between the wound inductor core and the substrate; and a working fluid disposed in the internal cavity and in contact with each of the inductor core and the condenser. The condenser is configured to condense vaporized working fluid as it traverses through the condenser.. ... Hamilton Sundstrand Corporation

01/07/16 / #20160005521

Liquid cooled inductors

An inductor assembly includes an inductor core, a winding, and a coolant conduit. The inductor core defines a cavity and the winding is disposed about the inductor core such that a portion of the winding is disposed within the cavity. ... Hamilton Sundstrand Corporation

01/07/16 / #20160003708

Wireless health and usage management of an environmental control system

A method includes receiving, by a first wireless device integrated into a management facility from a second wireless device integrated into a detection device, environmental conditions produced by a structure and detected by the detection device attached to the structure; and processing, by the management facility, the environmental conditions to detect a deviation from an expected operation of the structure.. . ... Hamilton Sundstrand Corporation

01/07/16 / #20160003491

Health and usage management of an environmental control system

A method includes receiving a sampled input, the sampled input being a result of a detection device sensing a plurality of environmental conditions by an air cycle machine; processing the sampled input to detect whether the plurality of environmental conditions includes a deviation from an expected operation of the air cycle machine; and generating a notification output in response to the plurality of environmental conditions including the deviation from the expected operation of the air cycle machine.. . ... Hamilton Sundstrand Corporation

01/07/16 / #20160003371

Pneumatic port shield

A port shield for a pneumatic actuator with a casing wall includes a sheet and a connecting member. The sheet includes an outer face disposed opposite an inner face, a first end disposed opposite a second end, and a first edge disposed opposite a second edge. ... Hamilton Sundstrand Corporation

01/07/16 / #20160003153

Cooling air system for aircraft turbine engine

In one aspect, a turbine engine is provided. The engine includes a fan, a core engine case configured to receive a core airflow, and an inner fan case. ... Hamilton Sundstrand Corporation








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