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Hamilton Sundstrand Corporation patents (2018 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


Wedges with q-axis damper circuits

A rotor for an electrical machine includes a rotor core having a plurality of circumferentially spaced apart rotor poles. Windings are seated in gaps between circumferentially adjacent pairs of the rotor poles. ... Hamilton Sundstrand Corporation

Powerless environmental data recorder

An environmental data recorder includes an enclosure, a first acceleration recorder array positioned on a first inner surface of the enclosure corresponding to an x-z plane defined by an x-axis and a z-axis, a second acceleration recorder array positioned on a second inner surface of the enclosure corresponding to an x-y plane defined by the x-axis and a y-axis, and a third acceleration recorder array positioned on a third inner surface of the enclosure corresponding to a y-z plane defined by the y-axis and the z-axis. The x-axis, the y-axis, and the z-axis are orthogonal axes. ... Hamilton Sundstrand Corporation

Lubrication system for high speed gearbox operating in zero gravity

A system has an input shaft driving a first gear and supported by at least one input shaft bearing. The first gear drives at least a second gear. ... Hamilton Sundstrand Corporation

Torsion spring

There is provided a method of manufacturing a torsion spring, comprising providing a section of sheet metal, and forming the torsion spring from the section of sheet metal.. . ... Hamilton Sundstrand Corporation

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

Corrosion protection via nanomaterials

A method for increasing corrosion resistance of metallic substrates without use of hexavalent chromium includes chemically treating the substrate to create an oxide layer, mixing nanoclay particles into a non-chromate primer, applying the primer to the oxide layer of the substrate, and applying a topcoat to the primer opposite the oxide layer.. . ... Hamilton Sundstrand Corporation

Corrosion protection via nanomaterials

A method for increasing corrosion resistance of metallic substrates without use of hexavalent chromium includes chemically treating the substrate to create an oxide layer, mixing graphene nanoplatelets into a non-chromate epoxy-based primer, applying the primer to the oxide layer of the substrate, and applying a topcoat to the primer opposite the oxide layer.. . ... Hamilton Sundstrand Corporation

Aerodynamic control surface movement monitoring system for aircraft

Actuator systems and methods for controlling aerodynamic control surfaces of aircraft including a first actuator receiving a first input and a first linear translation element that moves based thereon, the first linear translation element operably connected to a first portion of the control surface. A first sensor assembly is disposed relative to the first actuator that generates an output based on a displacement of the first translation element. ... Hamilton Sundstrand Corporation

Environmental control system pack with an air supply manifold

An air supply manifold includes an outer duct, a first inner duct, and a second inner duct. The outer duct is configured to transfer a fluid from the outer duct inlet to the outer duct outlet and includes an outer duct inlet and an outer duct outlet. ... Hamilton Sundstrand Corporation

Fuel fractioning unit for inert gas generating system

An inert gas generating system includes a source of a liquid hydrocarbon fuel, and a fractioning unit configured to receive a portion of the liquid hydrocarbon fuel from the source. The fractioning unit includes a perm-selective membrane configured to separate the portion of the liquid hydrocarbon fuel into substantially sulfur-free vapors and a sulfur-containing remainder. ... Hamilton Sundstrand Corporation

Generator arrangements and methods of controlling generator arrangements

A generator arrangement includes a stator with armature winding, a rotor with one or more permanent magnets supported for rotation relative to the stator, a variable speed drive, and a control module. The variable speed drive is connected to the rotor for rotating the rotor within a predetermined speed range. ... Hamilton Sundstrand Corporation

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

Integrated drive generator having a variable input speed and constant output frequency and method of driving

A method of driving an integrated drive generator is provided. The method includes driving a carrier shaft of an epicyclic differential and a variable component of a hydraulic trimming device that is operably coupled to a sun gear of the epicyclic differential. ... Hamilton Sundstrand Corporation

Air turbine starter with automated variable inlet vanes

According to one embodiment, an air turbine starter is provided. The air turbine starter comprising: a turbine wheel including a hub integrally attached to a turbine rotor shaft and a plurality of turbine blades extending radially outward from the hub; an inlet housing at least partially surrounding the turbine wheel; a nozzle located upstream from the turbine wheel and contained within the inlet housing defining an inlet flowpath between the nozzle and the inlet housing, the inlet flowpath directs air flow into the turbine blades; and a plurality of turbine vanes rotatably connected to the nozzle, each turbine vane extending radially from the nozzle into the inlet flowpath towards the inlet housing; wherein the plurality of turbine vanes are operable to adjust air flow through the inlet flowpath by rotating each turbine vane.. ... Hamilton Sundstrand Corporation

09/20/18 / #20180265213

Emergency power generation via electrically driven tail cone boundary layer ingestion thruster

Disclosed is a system for generating power for an aircraft. The system includes a boundary layer ingestion propulser that includes a propulsion fan configured to receive torsional energy from a boundary layer airstream, and a motor generator in operable communication with the propulsion fan and configured to generate power in response to rotation of the propulsion fan.. ... Hamilton Sundstrand Corporation

09/20/18 / #20180265206

Variable speed ac bus powered tail cone boundary layer ingestion thruster

A system for hybrid propulsion for an aircraft includes a gas turbine engine having a power shaft. A motor generator is operatively connected to the power shaft of the gas turbine engine and configured to produce electric power. ... Hamilton Sundstrand Corporation

09/20/18 / #20180264395

Cartridge for mounting lithium hydroxide sheets

A cartridge mounting an air treatment material has a housing. The air treatment material is received within the housing, and spaced from inner walls of the housing by a plurality of resilient sheets. ... Hamilton Sundstrand Corporation

09/06/18 / #20180254735

Current sensing in electric machines

An electric machine includes a phase lead and a winding set with first and second windings. The first and second windings are connected to the phase lead and are connected electrically in parallel with one another. ... Hamilton Sundstrand Corporation

09/06/18 / #20180254688

Wound-rotor synchronous machine with permanent magnets

A synchronous machine is disclosed which includes a stator defined by an annular stator yoke having a central axis, and a rotor axially supported within the stator and defined by a central rotor yoke having a plurality of radially extending rotor pole cores, each rotor pole core having a radially outer arcuate rotor pole shoe, wherein a permanent magnet is positioned between each circumferentially adjacent pair of rotor pole shoes and a field excitation winding is associated with each rotor pole core.. . ... Hamilton Sundstrand Corporation

09/06/18 / #20180252115

Electrical power generation system for a directed energy weapon and method

An electrical power generation system for a directed energy weapon includes a fuel pump configured to disperse a liquid fuel. Also included is an oxidizer pump configured to disperse a liquid oxidant. ... Hamilton Sundstrand Corporation

08/23/18 / #20180238627

Heat exchangers with installation flexibility

A heat exchanger includes a body shaped to integrate with one or more system structural elements and a plurality of first flow channels defined in the body. The heat exchanger also includes a plurality of second flow channels defined in the body. ... Hamilton Sundstrand Corporation

08/23/18 / #20180238267

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

08/23/18 / #20180237144

Two mode system that provides bleed and outside air or just outside air

An aircraft is provided. The aircraft includes a pressurized volume and an air conditioning system. ... Hamilton Sundstrand Corporation

08/16/18 / #20180235069

Pressure limiting heat sink

A heat sink for use with a thermal pad includes a heat sink body to engage the thermal pad, and a plurality of relief holes formed within the heat sink body, wherein the plurality of relief holes receives a portion of the thermal pad to limit an applied heat sink pressure onto the component.. . ... Hamilton Sundstrand Corporation

08/16/18 / #20180234071

Magnetically coupled contactless damper

According to an aspect, an inductor damper circuit includes a shared magnetic core, a primary winding, and a secondary winding. The primary winding includes an inductor winding of a first wire gauge wound about the shared magnetic core. ... Hamilton Sundstrand Corporation

08/16/18 / #20180234024

Variable resonant power converter with tunable inductor

An electronic power converter is configured to receive power from a power source. The power operates at a switching frequency. ... Hamilton Sundstrand Corporation

08/16/18 / #20180233884

Contactor health monitoring systems and methods

A contactor arrangement includes a post, a fastener and a temperature sensor. The post defines a post axis. ... Hamilton Sundstrand Corporation

08/16/18 / #20180231340

Enhanced thermal management for directed energy weapon

Described herein is a thermal management system and methodology for a directed energy weapon on an aircraft. The thermal management system includes an evaporator in thermal communication with the directed energy weapon and operatively configured to cool the directed energy weapon by evaporating a refrigerant therein. ... Hamilton Sundstrand Corporation

08/16/18 / #20180231329

Two-phase thermal loop with rotary separation

A thermal management loop system may include an accumulator, an evaporator in fluid receiving communication with the accumulator, a condenser in fluid receiving communication with the evaporator, and a rotary separator in fluid receiving communication with the condenser. Gas exiting the rotary separator may recirculate back to the condenser and liquid exiting the rotary separator may flow to the accumulator. ... Hamilton Sundstrand Corporation

08/16/18 / #20180231328

Two-phase thermal loop with membrane separation

A thermal management loop system may include an accumulator, an evaporator in fluid receiving communication with the accumulator, a condenser in fluid receiving communication with the evaporator, and a membrane separator in fluid receiving communication with the condenser. Gas exiting the membrane separator may recirculate back to the condenser and liquid exiting the membrane separator may flow to the accumulator. ... Hamilton Sundstrand Corporation

08/16/18 / #20180231327

Dual-mode thermal management loop

A system may include a pump, an evaporator, a condenser, an accumulator, a pump bypass line, a first valve, and a second valve. The system may operate in a powered-pump mode, in which the pump drives fluid circulation, the first valve prevents fluid circulation through the pump bypass line, the pump pumps liquid from the accumulator to the evaporator, gas exiting the evaporator flows to the condenser, liquid exiting the evaporator flows through the second valve to the accumulator, and liquid exiting the condenser flows to the accumulator. ... Hamilton Sundstrand Corporation

08/16/18 / #20180231131

High temperature shaft seal for bleed valve with roller bearings

A seal assembly for a creating a seal between a shaft and a valve housing of a bleed valve that impedes contaminants from reaching bearings includes first and second seal pieces. The first seal piece circumferentially surrounds the shaft and is disposed between the shaft and the valve housing. ... Hamilton Sundstrand Corporation

08/16/18 / #20180230998

Removable hydropad

A scroll compressor is provided and includes a motor housing having a support surface, a fixed scroll fixedly disposable on the motor housing, an orbiting scroll which is operably disposable for fluid-compressive orbital movement relative to the fixed scroll and a removable hydropad removably disposable on the support surface between the orbiting scroll and the support surface.. . ... Hamilton Sundstrand Corporation

08/16/18 / #20180230834

Ram air turbine blades

A blade for a ram air turbine includes a pitch rotation connector configured to connect to a pitch rotation device configured to control rotation of the blade about a pitch axis and an airfoil rotationally fixed to the pitch rotation connector. The pitch rotation connector is positioned on the airfoil to reduce pitch dependent moment about the pitch axis such that a maximum pressure moment about the pitch axis is less than a torque supplied to the blade via the pitch rotation device. ... Hamilton Sundstrand Corporation

08/16/18 / #20180229586

Inertial particle separator for air cycle machine

An inertial particle separator includes a body with an outer wall, an inlet, an outlet, an inner nozzle, a settling chamber, a serpentine channel, and a filter element. The inlet is disposed on an upstream end of the body. ... Hamilton Sundstrand Corporation

08/16/18 / #20180229174

Air filter for bleed valve assembly

An air filter assembly includes an air filter element with a pleated filter and seals incorporated at either end to prevent contaminants from bypassing the filter. The air filter assembly includes a filter cover, first, second and third seals, and an air filter element with a large diameter and low micron rating.. ... Hamilton Sundstrand Corporation

08/09/18 / #20180226955

Reduced overhead on digital signal processing for motor drive applications

In accordance with one or more embodiments, a monostable multivibrator that is communicatively coupled to a host device and an external analog-to-digital converter is provided. The monostable multivibrator receives a chip select signal from the host device. ... Hamilton Sundstrand Corporation

08/09/18 / #20180226868

Reciprocating electromagnetic actuator with flux-balanced armature and stationary cores

An apparatus for electromagnetic actuation includes a cylindrical housing. The apparatus further includes at least two stationary cores fixed to the cylindrical housing. ... Hamilton Sundstrand Corporation

08/09/18 / #20180222598

Catalytic fuel tank inerting apparatus for aircraft

Fuel tank inerting and fire suppression systems and methods for an aircraft are provided. The systems include a fuel tank, a first reactant source fluidly connected to the fuel tank, the first source arranged to receive fuel from the fuel tank, a second reactant source, a catalytic reactor arranged to receive a first reactant from the first source and a second reactant from the second source to generate an inert gas that is supplied to the fuel tank to fill a ullage space of the fuel tank, and a fire suppression inert gas supply system arranged to direct the inert gas to a fire suppression system, wherein the fire suppression inert gas supply system includes a fire suppression inert gas supply controller to control a flow of inert gas to the fuel tank and the fire suppression system.. ... Hamilton Sundstrand Corporation

08/02/18 / #20180219457

Generators with open loop active cooling

A rotor body for a high-speed generator includes a rotor body with interior and exterior surfaces, a coolant inlet and outlet, and a rotor cooling path for actively cooling the rotor body. The coolant inlet and outlet extend between the interior and exterior surfaces. ... Hamilton Sundstrand Corporation

08/02/18 / #20180219305

High power module interfaces

A high power module interface system, can include a blade contact configured to be mounted to a circuit board and a mounting fork having a conductive body including a first fork extension and a second fork extension defining a power interface feature opening therebetween. The mounting fork can be configured to provide electrical connection between the conductive body and the blade contact when the blade contact is positioned within the power interface opening.. ... Hamilton Sundstrand Corporation

08/02/18 / #20180218964

Immersion cooling arrangements for electronic devices

An electronics cooling arrangement includes a housing configured to contain a coolant and an electronic device disposed within the housing. The electronic device has a passageway with at least one inlet and at least one outlet and is configured to allow fluid flowing between the inlet and the outlet to cool the electronic device.. ... Hamilton Sundstrand Corporation

08/02/18 / #20180216974

Fault tolerant sensor interface

Embodiments herein relate to a fault tolerant sensor measurement system. The system includes a sensor having a primary winding and at least one secondary winding, a wiring harness operably connected to the sensor, and a controller operably connected wiring harness. ... Hamilton Sundstrand Corporation

08/02/18 / #20180216678

Automatically actuated disconnect couplings

An automatic disconnect coupling includes a retainer and a biasing member. The biasing member is coupled to the retainer and is arranged to communicate excitation from a generator input member to the retainer. ... Hamilton Sundstrand Corporation

08/02/18 / #20180215620

Flow sensing ozone converter

A flow sensing ozone converter includes an inlet housing, an outlet housing, and a central housing. The inlet housing defines a first pressure port. ... Hamilton Sundstrand Corporation

08/02/18 / #20180215474

Advanced environmental control system in an integrated pack arrangement with one bleed/outflow heat exchanger

An environmental control system of an aircraft includes a ram air circuit having a ram air shell with at least one heat exchanger positioned therein. A dehumidification system is arranged in fluid communication with the ram air circuit and a plurality of compressing devices is arranged in fluid communication with the ram air circuit and the dehumidification system.. ... Hamilton Sundstrand Corporation

08/02/18 / #20180215473

Advanced environmental control system in an integrated split pack arrangement with one bleed/outflow heat exchanger

An environmental control system of an aircraft includes a ram air circuit including a ram air shell having at least one heat exchanger positioned therein. A dehumidification system is arranged in fluid communication with the ram air circuit and at least one compressing device is arranged in fluid communication with the ram air circuit and the dehumidification system. ... Hamilton Sundstrand Corporation

08/02/18 / #20180215472

Advanced environmental control system in an integrated split pack arrangement with two bleed/outflow heat exchangers

An environmental control system for providing conditioned air to a volume of an aircraft includes a ram air circuit including a ram air shell with at least one heat exchanger positioned therein. A dehumidification system is arranged in fluid communication with the ram air circuit and at least one compressing device is arranged in fluid communication with the ram air circuit and the dehumidification system. ... Hamilton Sundstrand Corporation

07/26/18 / #20180212544

Reluctance-type rotary actuators

An actuator includes a yoke extending about a rotation axis. A coil is wrapped about the yoke. ... Hamilton Sundstrand Corporation

07/26/18 / #20180210996

Complex feature cloning in additive manufacturing datasets

A computer-implemented method for generating a manufacturing dataset having cloned geometric features for an additive manufacturing process includes identifying, via a processor, a repeating design feature in a first manufacturing dataset that defines a three-dimensional workpiece. The method further includes determining, via the processor, a processing cost or benefit for cloning the repeating design feature, and generating, via the processor, a second dataset having with repeating design feature isolated responsive to the determined processing benefit. ... Hamilton Sundstrand Corporation

07/26/18 / #20180209744

Passive liquid collecting device

A passive liquid collecting device includes a reservoir including a reservoir exit line and at least one rigid structure disposed within the reservoir configured to collect a liquid and direct the liquid to the reservoir exit line. A first porous capillary media is supported by the at least one rigid structure and a vapor-liquid separator in contact with at least one of the at least one rigid structure and the first porous capillary media. ... Hamilton Sundstrand Corporation

07/26/18 / #20180209547

Rotary adjustable orifice plate valve

A valve with a rotationally adjustable flow area can include a first member defining a first wall having a first opening therein, and a second member defining a second wall having a second opening therein, the first member being rotatable relative to the second member, and flow area through the valve being defined by fluidic communication between the first opening and the second opening that varies with relative rotational position between the first member and the second member.. . ... Hamilton Sundstrand Corporation

07/26/18 / #20180209513

Low speed spool generator transmission

A low speed spool multispeed transmission includes an input shaft configured to connect to a low pressure spool gearbox, a gear system connected to the input shaft and configured to convert an input speed of the input shaft to an output speed within a predetermined speed range, wherein the gear system includes a plurality of gear states to change the ratio between the input speed and the output speed, and an output shaft connected to the gear system to be rotated by the gear system at the output speed, the output shaft configured to connect to a generator. The input shaft and the output shaft can be coaxial.. ... Hamilton Sundstrand Corporation

07/26/18 / #20180209419

Fuel flow control assembly of aircraft engine and method

A fuel flow control assembly for an aircraft engine. The assembly includes a gear arrangement having a shaft. ... Hamilton Sundstrand Corporation

07/26/18 / #20180209349

Dual inline starter air valve

A starter air valve comprising: a housing comprising an inlet at a first end, an outlet at a second end opposite the first end, and a center portion between first end and second end, the outlet being fluidly connected to the inlet through a fluid passage; a first piston located within the housing between the first end and center portion, the first piston comprising: a first cupped portion configured to form a first chamber with the housing proximate the first end; and a second piston located within the housing between the second end and center portion, the second piston comprising: a third cupped portion configured to form a third chamber with the housing proximate the second end; wherein the pistons are configured to regulate airflow through the fluid passage by adjusting at least one of a first pressure within the first chamber and a third pressure within the third chamber.. . ... Hamilton Sundstrand Corporation

07/26/18 / #20180209347

Dual inline valve with manual override

A starter air valve comprising: a housing comprising an inlet at a first end, an outlet at a second end opposite the first end, and a center portion between the first and second end, the outlet being fluidly connected to the inlet through a fluid passage; a first piston located within the housing between first end and center portion, the first piston configured to block airflow through the fluid passage when in a closed position and allow airflow through the fluid passage when in an open position; a second piston located within the housing between second end and center portion, the second piston configured to block airflow through the fluid passage when in a closed position and allow airflow through the fluid passage when in an open position; and a manual override system configured to move from closed to open position at least one of the first and second pistons.. . ... Hamilton Sundstrand Corporation

07/26/18 / #20180206765

Insulating a protective cover for a seal to sensor associated with a spacesuit

A carbon dioxide sensor has a conduit connecting to a source of breathing air and delivering a sample of breathing air into a test chamber. A radiation source applies radiation across the chamber. ... Hamilton Sundstrand Corporation

07/19/18 / #20180205499

Message dropout minimization when transporting isochronous packets across a plesiochronous boundary

A system for reducing message dropout rate in a communication system is provided. Message dropouts occur during transportation of isochronous datasets across a plesiochronous boundary. ... Hamilton Sundstrand Corporation

07/19/18 / #20180205302

Permanent magnet (pm) brushless machine with outer rotor

An electric machine is provided and includes a stator that includes teeth, conductive windings configured to be wound about the teeth and a rotor rotatable about the stator. The rotor includes an annular core defining first slots along a circumferential dimension and one or more second slots along the circumferential dimension between neighboring first slots, permanent magnets disposable in the first slots and cage windings disposable in the second slots.. ... Hamilton Sundstrand Corporation

07/19/18 / #20180202605

Deaerating assembly

A method of deaerating a mixture of fluid and air according to an example of the present disclosure includes the steps of communicating a mixture of a fluid and air into an open area of a reservoir directly against a wall of the reservoir to separate at least some of the fluid from at least some of the air. The reservoir is disposed about an axis of a rotatable shaft, and the reservoir has a curved radially outer wall and a curved radially inner wall joined by curved end walls that face circumferentially relative to the axis. ... Hamilton Sundstrand Corporation

07/19/18 / #20180202506

Hydraulic damping valve

A damping valve for a hydraulic damper comprises a valve housing comprising an inlet chamber and an outlet chamber. A valve seat is arranged between the inlet chamber and the outlet chamber. ... Hamilton Sundstrand Corporation

07/19/18 / #20180202315

Electric motor arrangements for gas turbine engines

A motor arrangement includes a shaft, a motor with a cage winding fixed in rotation relative to the shaft, and a generator. The generator includes a permanent magnet assembly fixed in rotation relative to the shaft. ... Hamilton Sundstrand Corporation

07/19/18 / #20180201389

Release mechanism

A toggle release mechanism includes a base element, a toggle element and an actuating rod. The toggle element is rotatably mounted at a first end to the base element about a first axis for rotation between a locking position and a release position. ... Hamilton Sundstrand Corporation

07/19/18 / #20180200829

Friction stir welding for compact parts

A friction stir welded component includes a channel body having a main surface and an elongated channel formed in the main surface. The elongated channel has a first depth portion that is longitudinally spanned by shoulders having a second depth, the second depth being shallower than the first depth. ... Hamilton Sundstrand Corporation

07/12/18 / #20180199465

Immersion cooling arrangements

An immersion cooling arrangement includes a housing containing a liquid coolant. An electrical device is submerged within the liquid coolant. ... Hamilton Sundstrand Corporation

07/12/18 / #20180199461

Electronics thermal management

Potted electronic assemblies are disclosed along with methods of making and cooling them. The electronic assemblies include a conductive heat transfer medium disposed between and in contact with an electronic component and a heat sink. ... Hamilton Sundstrand Corporation

07/12/18 / #20180198395

Double stator permanent magnet machine with magnetic flux regulation

Embodiments herein relate to a permanent magnet (pm) dynamoelectric machine. The machine includes a drive shaft, a pm rotor assembly with multiple pms arranged around a periphery of the rotor assembly, a first stator assembly including a stator yoke, having stator teeth mounted to the stator core with distal ends proximate the outer periphery of the rotor assembly separated by a first air gap and multiple stator coils mounted between the stator teeth. ... Hamilton Sundstrand Corporation

07/12/18 / #20180198356

Line-start synchronous reluctance motor with improved performance

A line start synchronous-reluctance (lssrm) brushless motor includes a stator that is arranged at an inner circumferential surface of a motor body and that extends longitudinally along an axis to define a central opening. A rotor assembly is disposed in the central opening. ... Hamilton Sundstrand Corporation

07/12/18 / #20180197645

Radiographic and computed tomography inspection anti-counterfeit security

A structure for preventing a scan by a beam is provided. The structure includes a primary material forming the structure. ... Hamilton Sundstrand Corporation

07/12/18 / #20180195813

Variable headers for heat exchangers

A heat exchanger header includes a plurality of first flow channels and second flow channels, each flow channel including a fluid circuit opening for fluid communication with a fluid circuit of a heat source and a core opening for communication with a heat exchanger core, wherein at least the first flow channels include a lobe section defining a non-uniform cross-sectional flow area that changes along a flow direction.. . ... Hamilton Sundstrand Corporation

07/12/18 / #20180195621

Filter for pneumatic valve

An example embodiment of a filter for a butterfly valve includes an inlet side having an axial inlet port and the first diameter din, a closed outer side having a second diameter d2, and a filter body disposed between the inlet side and the outer side. The filter body has a filter diameter dfilter larger than both din and d2, and includes a cylindrical wall retaining a pleated filter media. ... Hamilton Sundstrand Corporation

07/12/18 / #20180195551

Bearing assembly with surface layer

A bearing assembly is disclosed that includes a first component with a first bearing surface, and a second component with a second bearing surface. A fluid is disposed between the first bearing surface and the second bearing surface supporting the first bearing surface and the second bearing surface in a non-contact rotational relationship. ... Hamilton Sundstrand Corporation

07/12/18 / #20180194966

Water based silicone coating compositions

A high temperature coating includes a silicone resin, a mass of nanoclay particles dispersed in the silicone resin, a surfactant and water.. . ... Hamilton Sundstrand Corporation

07/05/18 / #20180191229

Electric power generating system with a permanent magnet generator

An electric power generating system (epgs) may comprise a permanent magnet generator (pmg) comprising a rotor comprising a permanent magnet, and a stator comprising a plurality of armature windings configured to output a plurality of three-phase voltages, and a plurality of rectifiers corresponding to the plurality of armature windings and configured to rectify the plurality of three-phase voltages, wherein the plurality of rectifiers are connected in series.. . ... Hamilton Sundstrand Corporation

07/05/18 / #20180187978

Fin-diffuser heat sink with high conductivity heat spreader

A method and apparatus for cooling a heat source is disclosed. The apparatus includes a fin-diffuser including a blower integrated with fins of a diffuser. ... Hamilton Sundstrand Corporation

07/05/18 / #20180187677

Vane pump seal

A seal tube assembly of a pump system is provided. The seal tube assembly includes a single seal tube having a first axial end sealably coupled to a first vane pump and a second axial end sealably coupled to a second vane pump. ... Hamilton Sundstrand Corporation

06/28/18 / #20180183371

Controlling aircraft vfg over voltage under fault or load-shed

Embodiments include a technique for controlling aircraft vfg over voltage under fault or load-shed, the techniques includes using a control unit for generating signals to maintain a terminal output voltage and frequency, and a variable frequency generator, coupled to the control unit, for generating the terminal output voltage. The variable frequency generator includes a stator having a set of primary stator windings and a set of secondary stator windings for generating the terminal output voltage, and a switch coupled to the set of secondary stator windings, the switch is configured to operate at a threshold frequency of the vfg to regulate the terminal output voltage by supplementing the terminal output voltage produced by the set of primary stator windings reducing the vfg fault over-voltage.. ... Hamilton Sundstrand Corporation

06/28/18 / #20180183218

Resistance-limited electrical interconnects

A resistance-limited electrical interface includes a printed wiring board, a bus bar, a u-shaped conductor, and a retainer. The bus bar extends from the printed wiring board. ... Hamilton Sundstrand Corporation

06/28/18 / #20180182063

Information display for line replaceable modules

A line replaceable module (lrm) includes a non-volatile memory (nvm) comprising lrm state data, a display module operatively connected to the nvm and configured to receive the lrm state data therefrom to format the lrm state data into a display formatted data, and an electronic display operatively connected to the display module to receive the display formatted data to display the display formatted data on the electronic display.. . ... Hamilton Sundstrand Corporation

06/28/18 / #20180181181

Differential current monitoring of multiple circuits

A system for differential current monitoring includes a control module and a plurality of nodes operatively connected to the control module. Each node is configured to monitor current from a bus to a respective load. ... Hamilton Sundstrand Corporation

06/28/18 / #20180179912

Starter air valve systems configured for low speed motoring

A starter air valve (sav) system includes a pressure actuated sav actuator configured to be operatively connected to a sav, a first pressure valve configured to selectively allow pressure from a pressure source to the sav actuator when in fluid communication with the sav actuator, and a second pressure valve configured to selectively allow pressure from the pressure source to the sav actuator when in fluid communication with the sav actuator. A manual override (mor) valve selector is disposed between the first pressure valve, the second pressure valve, and the sav actuator, the mor valve selector configured to selectively fluidly connect the first pressure valve and the sav actuator in a first position and to fluidly connect the second pressure valve and the sav actuator in a second position.. ... Hamilton Sundstrand Corporation

06/28/18 / #20180179911

Starter air valve systems configured for low speed motoring

A starter air valve (sav) system includes a pressure actuated sav actuator configured to be operatively connected to a sav, a first pressure valve configured to selectively allow pressure from a pressure source to the sav actuator when in fluid communication with the sav actuator, and a second pressure valve configured to selectively allow pressure from the pressure source to the sav actuator when in fluid communication with the sav actuator. A manual override (mor) valve selector is disposed between the first pressure valve, the second pressure valve, and the sav actuator, the mor valve selector configured to selectively fluidly connect the first pressure valve and the sav actuator in a first position and to fluidly connect the second pressure valve and the sav actuator in a second position.. ... Hamilton Sundstrand Corporation

06/28/18 / #20180179896

Heat pipe system for engine rotor cooling

A heat pipe system includes one or more arcuate heat pipe segments shaped conforming to an inner wall of an engine rotor. The heat pipe system also includes a heat pipe fluid within the one or more arcuate heat pipe segments.. ... Hamilton Sundstrand Corporation

06/21/18 / #20180175680

Reduction of starting current in line start permanent magnet brushless motors

A rotor of line start permanent magnet synchronous motor is provided. The rotor includes bars of cage windings. ... Hamilton Sundstrand Corporation

06/21/18 / #20180174732

Integrated inductor windings and heat pipes

An inductor includes a printed wiring board (pwb) and a plurality of electrically-conductive heat pipes operatively connected to the pwb. The pwb includes electrically conductive traces electrically connected to the plurality of electrically-conductive heat pipes. ... Hamilton Sundstrand Corporation

06/21/18 / #20180174728

Electrical device with flexible connectors

An electrical device includes a first flexible connector, including a first flexible conductor and a second flexible conductor, and a flexible insulator disposed between the first flexible conductor and the second flexible conductor, a second flexible connector spaced apart from the first flexible connector, the second flexible connector including a third flexible conductor, a first interconnect to electrically connect the first flexible conductor and the third flexible conductor, a second interconnect to electrically connect the third flexible conductor and the second flexible conductor, wherein the second interconnect is disposed opposite the first interconnect.. . ... Hamilton Sundstrand Corporation

06/21/18 / #20180174098

Stator heat transfer feature for a dynamoelectric machine

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, the base having a first end, a second end, and an axial middle; a first set of fins extending radially outward from the base adjacent the first end and the second end; and a second set of fins extending radially outward from the axial middle of the base with the second set of fins each having a smaller surface area and being closer to one another than the first set of fins.. ... Hamilton Sundstrand Corporation

06/21/18 / #20180173622

Deterministic timing evaluation

A method and system to perform deterministic timing analysis of a plurality of software tasks involves cache memory that is shared by the plurality of software tasks. Real memory is accessible by the plurality of software tasks. ... Hamilton Sundstrand Corporation

06/21/18 / #20180173537

Runtime reconfigurable dissimilar processing platform

One or more embodiments here relate to a processing platform for performing channel management and channel monitoring of a control channel. The processing platform includes a first microcontroller comprising a first core. ... Hamilton Sundstrand Corporation

06/21/18 / #20180172369

Heat exchanger component with embedded sensor

An additively manufactured component is provided. The additively manufactured component includes an additively manufactured first part defining a first trench, an additively manufactured second part defining a second trench and a fiber optic sensor. ... Hamilton Sundstrand Corporation

06/21/18 / #20180172368

Heat exchanger having embedded features

A heat exchanger includes a heat exchanger body having a first face, a second face disposed opposite the first face, a first wall, and a second wall disposed opposite the first wall. The first wall and the second wall each extend between the first face and the second face. ... Hamilton Sundstrand Corporation

06/21/18 / #20180172326

Porous media evaporator

An evaporator includes a housing having a liquid inlet interface, a liquid outlet interface, and a vapor outlet interface. The evaporator also includes, according to various embodiments, a porous media disposed in the housing and having a porous wall that defines a conduit. ... Hamilton Sundstrand Corporation

06/21/18 / #20180172179

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

06/21/18 / #20180172170

Spring seat diaphragm retention grooves

A pressure relief valve controller (prvc) includes a housing having a spring, a spring seat connected to the spring, a piston, and a portion of which is disposed between the spring seat and the piston, wherein one or more grooves and/or protrusions are disposed on at least one of the spring seat or the piston. The diaphragm can conform to the one or more grooves of the spring seat thus preventing diaphragm rupture due to excess pressure without affecting calibrations of current prvcs.. ... Hamilton Sundstrand Corporation

06/21/18 / #20180171500

Electroplating systems and methods

An electroplating system includes an enclosure with an interior, an anode lead extending through the enclosure and into the interior, and a porous body. The porous body is supported within the interior of the enclosure for coupling an electroplating solution within the interior with a workpiece. ... Hamilton Sundstrand Corporation

06/21/18 / #20180170771

Condensation catalyst systems and methods

A reactor system may comprise a housing; and a condensation catalyst layer within the housing comprising a condensation catalyst comprised of at least one of a base-substituted zeolite, a stannous salt, or a phosphonitrile chloride. The condensation catalyst layer may be configured to catalyze a condensation reaction of a plurality of silane diols in water flowing through the housing into a plurality of siloxanes.. ... Hamilton Sundstrand Corporation

06/21/18 / #20180170554

Environmental control system with ejector-enhanced cooling

An environmental control system includes a primary heat exchanger operable to transfer heat from an air source to a refrigerant in a generator flow and output an air flow. An ejector is operable to produce an intermediate refrigerant flow based on receiving the generator flow as a motive fluid and drawing a vapor refrigerant flow as a suction fluid. ... Hamilton Sundstrand Corporation

06/21/18 / #20180169669

Motor cooling circuit with integrated fod particle separator

A ram circuit for an aircraft includes a ram inlet housing, a ram outlet housing, a heat exchanger, a ram air fan, and a particle separator. The ram inlet housing includes a chamber and an inlet configured to receive air. ... Hamilton Sundstrand Corporation

06/14/18 / #20180164055

Heat exchanger with sliding aperture valve

An apparatus is provided. The apparatus includes a heat exchanger providing heat transfer between a first medium and a second medium. ... Hamilton Sundstrand Corporation

06/14/18 / #20180163745

Systems and methods for making airfoils

A method of making a fan blade may include the steps of forming a core comprising fibrous material, and placing a first layer of dry fiber tows over the core using a robot. The first layer of dry fiber tows may be substantially un-crimped and may have a thermoplastic coating. ... Hamilton Sundstrand Corporation

06/14/18 / #20180163744

Systems and methods for making blade sheaths

A method of making a sheath for an airfoil may include the steps of forming an upper sleeve and a lower sleeve, and forming a central portion bonded to the upper sleeve and the lower sleeve. The central portion may be formed by depositing a material on the upper sleeve and the lower sleeve. ... Hamilton Sundstrand Corporation

06/14/18 / #20180162544

Selective method of operation of ullage passivation system

A method of selectively operating an ullage passivation system includes receiving at least one of a temperature signal and a vapor composition signal. The method further includes operating an ullage passivation system to provide a fluid to the fuel tank, in response to at least one of a temperature exceeding a temperature threshold and a component of the vapor composition exceeding a threshold composition.. ... Hamilton Sundstrand Corporation

06/14/18 / #20180162536

Air cycle machine module air gate seal for environmental control systems

An isolation valve comprising: a housing having an internal surface within the housing, the internal surface having a first outlet and second outlet; an air gate having an outward face opposite the internal surface, the air gate located within the housing and configured to move to at least one of a first position blocking flow to the first outlet, a neutral position blocking flow to neither the first outlet nor second outlet, and a second position blocking flow to the second outlet; a seal groove located on the outward face of the air gate; a seal located within seal groove, the seal configured to form a sealed connection with the internal surface around at least one of the first outlet when in the first position and the second outlet when in the second position; and a retainer configured to secure the seal within the seal groove using a fastening mechanism.. . ... Hamilton Sundstrand Corporation

06/14/18 / #20180162535

Air distribution system with recirculating zone trim tec

Disclosed is a system for distributing air to plural aircraft zones that receive manifold air from a mix manifold, the system has: a thermal electronic cooler trim module (tec), fluidly connected between a recirculating fan and the mix manifold; the tec has: multiple tec zones, each fluidly connected to, and sized relative to heating requirements of, a respective one of the aircraft zones; a first tec inlet, through which a first portion of the recirculated air enters the tec, is heat treated in a first heating direction, and is exhausted toward the mix manifold; and a second tec inlet, through which a second portion of the recirculated air enters the tec zones, is heat treated in a second heating direction, and is exhausted toward the aircraft zones for mixing with the manifold air.. . ... Hamilton Sundstrand Corporation

06/07/18 / #20180159524

Single event latchup mitigation with sample and hold

A system for mitigating a solid state power controller (sspc) open or closed state change caused by single event latchup (sel) includes an on circuit, an off circuit operatively connected in parallel to the on circuit, a holding capacitor operatively connected in parallel with the on circuit and the off circuit, and a power switching device operatively connected to the holding capacitor and the on circuit. The system is configured to maintain, during and after the sel, a drive state voltage to the power switching device that is stored in the holding capacitor prior to the sel.. ... Hamilton Sundstrand Corporation

06/07/18 / #20180156508

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

06/07/18 / #20180156058

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

06/07/18 / #20180155050

Catalytic fuel tank inerting apparatus for aircraft

Fuel tank inerting systems and methods for an aircraft. The systems include a fuel tank, a first reactant source fluidly connected to the fuel tank, the first source arranged to receive fuel from the fuel tank, a second reactant source, a catalytic reactor arranged to receive a first reactant from the first source and a second reactant from the second source to generate an inert gas that is supplied to the fuel tank to fill a ullage space of the fuel tank, and a heating duct thermally connected to the catalytic reactor and arranged in thermal communication with the first source to provide heat to the first source to generate the first reactant.. ... Hamilton Sundstrand Corporation

06/07/18 / #20180155049

Catalytic fuel tank inerting apparatus for aircraft

Fuel tank inerting systems and methods for aircraft are provided. The systems include a fuel tank, a first reactant source fluidly connected to the fuel tank, the first source arranged to receive fuel from the fuel tank, a second reactant source, a catalytic reactor arranged to receive a first reactant from the first source and a second reactant from the second source to generate an inert gas that is supplied to the fuel tank to fill a ullage space of the fuel tank, and an inert gas recycling system located downstream of the catalytic reactor and upstream of the fuel tank, wherein the inert gas recycling system is arranged to direct a portion of the inert gas to the catalytic reactor.. ... Hamilton Sundstrand Corporation

06/07/18 / #20180155048

Catalytic fuel tank inerting apparatus for aircraft

Fuel tank inerting systems and methods for aircraft are provided. The systems include a fuel tank, a first reactant source fluidly connected to the fuel tank and arranged to receive fuel from the fuel tank, a second reactant source, a catalytic reactor arranged to receive a first and second reactants from the first and second sources, respectively, to generate an inert gas that is supplied to the fuel tank to fill a ullage space of the fuel tank, a heat exchanger arranged between the catalytic reactor and the fuel tank and downstream of the catalytic reactor, the heat exchanger arranged to at least one of condense and cool an output from the catalytic reactor to separate out an inert gas and a byproduct, and a cool air source arranged to supply cool air to the heat exchanger and then the catalytic reactor to provide thermal control of the catalytic reactor.. ... Hamilton Sundstrand Corporation

06/07/18 / #20180155047

Catalytic fuel tank inerting apparatus for aircraft

Fuel tank inerting systems and methods for aircraft are provided. The systems include a fuel tank, a first reactant source fluidly connected to the fuel tank, the first source arranged to receive fuel from the fuel tank, a second reactant source, a catalytic reactor arranged to receive a first reactant from the first source and a second reactant from the second source to generate an inert gas that is supplied to the fuel tank to fill a ullage space of the fuel tank, and a heating duct connected to the second reactant source, wherein a thermal energy of the second reactant is employed to heat the first reactant source.. ... Hamilton Sundstrand Corporation

05/31/18 / #20180149089

Method for reducing thermally induced stresses in a heat exchanger

A heat exchanger core includes a rectangular core having a plurality of alternatively stacked first fluid layers and second fluid layers. The core is divided into a plurality of core subsections such that a deflection of each of the plurality of core subsections is less than a deflection of the core as a whole.. ... Hamilton Sundstrand Corporation

05/31/18 / #20180148191

Catalytic fuel tank inerting apparatus for aircraft

Fuel tank inerting systems and methods for aircraft are provided. The systems include a fuel tank, a first reactant source fluidly connected to the fuel tank, the first source arranged to receive fuel from the fuel tank, a second reactant source, a catalytic reactor arranged to receive a first reactant from the first source and a second reactant from the second source to generate an inert gas that is supplied to the fuel tank to fill a ullage space of the fuel tank, and a back pressure flow restrictor positioned within or along a fuel tank supply line and downstream of the catalytic reactor, the back pressure flow restrictor arranged to maintain high-pressure operation of the catalytic reactor.. ... Hamilton Sundstrand Corporation

05/31/18 / #20180148190

Catalytic fuel tank inerting apparatus for aircraft

Fuel tank inerting systems and methods for aircraft are provided. The systems include a fuel tank, a first reactant source fluidly connected to the fuel tank, the first source arranged to receive fuel from the fuel tank, a second reactant source, wherein the second reactant source is a source of ambient air, and a catalytic reactor arranged to receive a first reactant from the first source and a second reactant from the second source to generate an inert gas that is supplied to the fuel tank to fill a ullage space of the fuel tank.. ... Hamilton Sundstrand Corporation

05/31/18 / #20180148189

Catalytic fuel tank inerting apparatus for aircraft

Fuel tank inerting systems and methods for aircraft are provided. The systems include a fuel tank, a first reactant source fluidly connected to the fuel tank, the first source arranged to receive fuel from the fuel tank, a second reactant source, a catalytic reactor arranged to receive a first reactant from the first source and a second reactant from the second source to generate an inert gas that is supplied to the fuel tank to fill a ullage space of the fuel tank, and wherein the first reactant is directly injected from the first reactant source without the use of a heater.. ... Hamilton Sundstrand Corporation

05/31/18 / #20180148188

Catalytic fuel tank inerting apparatus for aircraft

Fuel tank inerting systems and methods for aircraft are provided. The systems include a fuel tank, a first reactant source fluidly connected to the fuel tank, the first source arranged to receive fuel from the fuel tank, a second reactant source, a catalytic reactor arranged to receive a first reactant from the first source and a second reactant from the second source to generate an inert gas that is supplied to the fuel tank to fill a ullage space of the fuel tank, and a cool air source arranged to supply cool air to the catalytic reactor to provide thermal control of a reaction within the catalytic reactor, wherein the cool air is discharged from at least one of a cabin of the aircraft and an environmental control system of the aircraft.. ... Hamilton Sundstrand Corporation

05/31/18 / #20180148181

Air distribution manifold with integral multizone tec trim system

A system for distributing air to a plurality of aircraft zones includes an air mixer including an air inlet plenum and a manifold. The manifold including a plurality of sections fluidly coupled to the plurality of aircraft zones. ... Hamilton Sundstrand Corporation

05/31/18 / #20180148179

Environmental control system with optimized moisture removal

An airplane is provided. The airplane includes an environmental control system coupled to an engine and an inlet. ... Hamilton Sundstrand Corporation

05/17/18 / #20180138789

System and method for adjusting an air gap in a servovalve torque motor and a new type of torque motor

. . An improved torque motor for use in a servovalve is described herein, comprising: first and second pole pieces, having a c-shaped cross-section comprising a ring shaped section extending in a first plane with first and second portions extending perpendicularly away from said plane and inwards towards an armature plate. The perpendicularly extending portions are detachable from and attachable to the ring-shaped section of the pole pieces to allow for easier calibration and adjustment of the air gaps between the pole pieces and the armature plate positioned there between.. ... Hamilton Sundstrand Corporation

05/17/18 / #20180138769

Layered conductors for reduced eddy loss

An electrical machine includes a stator defining a plurality of circumferentially spaced slots. A layered conductor is wound into the slots. ... Hamilton Sundstrand Corporation

05/17/18 / #20180135661

Servovalve

A servovalve includes a fluid transfer valve assembly comprising a supply port and a control port a moveable valve spool arranged to regulate flow of fluid from the supply port to the control port in response to a control signal; and a jet pipe assembly configured to direct fluid to the ends of the spool to axially move the valve spool relative to the fluid transfer assembly in response to the control signal to regulate the fluid flow. The jet pipe assembly includes a jet pipe and a connector header fluidly connecting the jet pipe to a nozzle via which fluid is directed to the spool ends. ... Hamilton Sundstrand Corporation

05/17/18 / #20180135513

Electrically boosted regenerative bleed air system

An engine bleed air system for providing air to an aircraft system includes a port for extracting bleed air from a compressor section of an engine. The system additionally includes a turbo-generator having a turbine and a generator. ... Hamilton Sundstrand Corporation

05/17/18 / #20180134397

Turbo-generator based bleed air system

An engine bleed air system providing air to an aircraft system includes a port for extracting high pressure bleed air from an engine and a turbo-generator having a turbine and a generator. The generator is driven by rotation of the turbine. ... Hamilton Sundstrand Corporation

05/17/18 / #20180133634

Compact water extractor

A water extractor includes an inlet, an outlet a body, outer wall, inner wall, helical wall, plurality of catchment areas, and scuppers. The body extends between the inlet and the outlet. ... Hamilton Sundstrand Corporation

05/10/18 / #20180132343

Integrated panel level liquid cooling for bus bars

An electrical contactor assembly is provided including: an electrical contactor; an electrical bus bar; a panel; at least one post protruding through the panel and in contact with the electrical bus bar, the post being constructed from an electrically and thermally conductive material, wherein a first end of the at least one post is configured to electrically and thermally connect to the electrical contactor; and a liquid cooled heat sink thermally connected to a second end of the at least one post through the electrical bus bar, wherein the liquid cooled heat sink in operation circulates liquid coolant through the liquid cooled heat sink to absorb heat.. . ... Hamilton Sundstrand Corporation

05/10/18 / #20180131304

High voltage direct current system for a vehicle

An electric power system (eps) may comprise a modular multilevel converter (mmc) and a synchronous generator in electronic communication with the mmc. The synchronous generator may comprise a stator comprising inner slots and outer slots. ... Hamilton Sundstrand Corporation

05/10/18 / #20180131254

Electric power generating system with a synchronous generator

A synchronous generator may comprise a rotor and a stator. The stator may comprise a first armature winding configured to output a first three-phase voltage and a second armature winding configured to output a second three-phase voltage. ... Hamilton Sundstrand Corporation

05/10/18 / #20180131192

Electric power system for a space vehicle

An electrical power system may comprise a first plurality of power sources, a first collector bus configured to receive power from the plurality of power sources, an unregulated dc bus configured to receive power from the first collector bus, a regulated high voltage direct current (hvdc) bus configured to receive power from the unregulated dc bus, and a first power distribution unit (pdu) configured to receive power from the regulated hvdc bus. The regulated hvdc bus may be configured to supply power to a high voltage load. ... Hamilton Sundstrand Corporation

05/10/18 / #20180129242

Locking mechanisms for ram air turbine actuators

A locking mechanism for a ram air turbine actuator can include at least one of spherical locking pawls configured to retain an outer member and spherical pawl rollers configured to radially actuate the spherical locking pawls by axial movement of the spherical pawl rollers.. . ... Hamilton Sundstrand Corporation

05/10/18 / #20180128393

Servovalve

A servovalve includes a fluid transfer valve assembly comprising a supply port and a control port, a moveable valve spool arranged to regulate flow of fluid from the supply port to the control port in response to a control signal, and a drive assembly configured to axially move the valve spool relative to the fluid transfer assembly in response to the control signal to regulate the fluid flow. The drive assembly includes a steerable member moveable by an amount determined by the control signal to cause corresponding movement of the valve spool. ... Hamilton Sundstrand Corporation

05/10/18 / #20180128388

Check valve

A flapper element for a check valve comprises at least one mounting lug configured to receive a shaft for rotation relative thereto and having a row of teeth for engaging complementary teeth on a mounting lug of a similar flapper element. The complementary teeth tie the rotation of the two flapper elements.. ... Hamilton Sundstrand Corporation

05/10/18 / #20180127883

Two-step sealing of anodized aluminum coatings

A method includes providing a workpiece with at least one surface having an anodized aluminum coating and a trivalent chromium sealant. The at least one surface of the workpiece is submerged in a post-treatment sealant solution for 0.5 to 20 minutes. ... Hamilton Sundstrand Corporation

05/10/18 / #20180127116

Solar powered spacecraft power system

An electrical power system may comprise a first energy source management converter (esmc) configured to be connected in electronic communication with a first power source, a second esmc configured to be connected in electronic communication with a second power source, and a multi-channel dc bus, wherein the first esmc is configured to supply electric power to a first channel of the multi-channel dc bus, the second esmc is configured to supply electric power to a second channel of the multi-channel dc bus, and the multi-channel dc bus is configured to supply electric power to a load.. . ... Hamilton Sundstrand Corporation

05/10/18 / #20180127110

On-board aircraft reactive inerting dried gas system

An on-board aircraft inert gas system includes a source of hydrocarbon, a source of gas comprising oxygen, and a first fluid flow path between the source of gas comprising oxygen and an inert gas output. A reactor is disposed along the first fluid flow path that reacts oxygen and hydrocarbon from the fuel tank gas space to produce an oxygen-depleted gas. ... Hamilton Sundstrand Corporation

05/10/18 / #20180126358

Sorbent systems and methods

A sorbent bed may comprise a sorbent support comprising at least one of a carbon material, a polymeric material, or alumina, wherein the sorbent support comprises a plurality of pores; and an impregnant configured to absorb ammonia disposed within the plurality of pores in the sorbent support, wherein the sorbent bed comprises between 20% and 60% by weight impregnant.. . ... Hamilton Sundstrand Corporation

05/10/18 / #20180126322

Thermally conductive structure for multi-direction flow through packed bed

A packed bed for a heat exchanger may comprise a frame and a first fin layer disposed within the frame. A second fin layer may be disposed within the frame. ... Hamilton Sundstrand Corporation

05/03/18 / #20180120038

Heat exchanger with embedded heat pipes

A heat exchanger is disclosed which includes a plurality of heat exchanger plates. Each plate has a plurality of hollowed out pins arranged in a pin fin pattern. ... Hamilton Sundstrand Corporation

05/03/18 / #20180119772

Three-spring ram air turbine actuator

A ram air turbine (rat) actuator can include an actuator housing, an actuator rod configured to move relative to the actuator housing through several positions, and a first biasing member, a second biasing member, and a third biasing member positioned and configured to bias the actuator rod relative to the actuator housing. The first biasing member biases the actuator rod from a first position through a second position, the second biasing member biases the actuator rod from the first position through a third position, and the third biasing member biases the actuator rod from the first position through a fourth position. ... Hamilton Sundstrand Corporation

05/03/18 / #20180119763

Apparatus for torque limiting device

The present disclosure relates to an apparatus for a torque limiter, comprising an indication device configured to provide an indication that the torque limiting device has tripped, and of the direction of torque applied to the torque limiting device when the torque limiting device tripped, in use.. . ... Hamilton Sundstrand Corporation

05/03/18 / #20180118378

Anti-stall hydraulic pump for a thrust vector control system

A thrust vector control system is provided. The thrust vector control system may comprise an anti-stall hydraulic pump configured to deliver hydraulic fluid to at least one actuator, wherein each actuator may be configured to move an exhaust nozzle of a space vehicle. ... Hamilton Sundstrand Corporation

05/03/18 / #20180118367

Fuel stabilization chamber

A system for generating inert gas comprising includes a fuel tank including an inner storage volume containing a fuel. A fuel stabilization chamber has an inner volume. ... Hamilton Sundstrand Corporation

05/03/18 / #20180118366

Air separation system for fuel stabilization

A system for generating inert gas includes a source of pressurized air. An air separation module including at least one permeable membrane is operable to separate the pressurized air into oxygen-enriched air and inert gas-enriched air. ... Hamilton Sundstrand Corporation

05/03/18 / #20180118352

Ozone converter bypass

An ozone converter includes an outer housing having an inlet and an outlet and a core disposed within the outer housing, the core including a central passageway formed therein and passing thorough the core. The converter also includes an ozone control assembly that allows air to pass through the central passageway in an closed mode and prevents flow thorough the central passageway in an open mode, the assembly including cover flaps that cover a portion of the core in the closed mode and that do not cover the core in the open mode.. ... Hamilton Sundstrand Corporation

04/19/18 / #20180106302

Generator disconnect couplings

A method of disconnecting a generator from a source of mechanical rotation includes receiving a generator disconnect command and receiving a rotational position of a generator input member. The input member rotational angle is compared to the target disconnect angle range, and a determination made whether to disconnect the input member from a generator drive member based on the comparison.. ... Hamilton Sundstrand Corporation

04/19/18 / #20180104639

One piece media retention screen for adsorption canister

A retention screen for use in an adsorption canister has outer edges including a seal groove that form a relatively thick portion and a plurality of support pad portions also formed to be relatively thick and relatively thin connecting web portions connecting the outer edge to the support pad portions. The connecting web portions also connect the support pad portions to each other. ... Hamilton Sundstrand Corporation

04/12/18 / #20180103560

Jet impingement immersion cooling with synthetic ejector

A method and system including an immersion cooled line replaceable unit (lru) with jet impingement immersion cooling are provided. The lru including an integrated circuit disposed in the immersion cooled lru, and a synthetic jet ejector disposed in the immersion cooled lru, wherein the synthetic jet ejector creates a submerged jet impingement flow of cooling fluid toward the integrated circuit.. ... Hamilton Sundstrand Corporation

04/12/18 / #20180102721

Linear motor actuators

A linear motor actuator includes a plurality of stators mounted stationary relative to one another along a common actuation axis. A translator rod is mounted to the stators for linear motion relative to the stators along the actuation axis, wherein each stator is magnetically coupled to the translator rod to drive motion of the translator rod along the actuation axis.. ... Hamilton Sundstrand Corporation

04/12/18 / #20180100704

Heat exchangers

A heat exchanger comprises a shell having a first inlet and a first outlet for a first fluid (h) and a second inlet and a second outlet for a second fluid (c), and a screw element. The screw element has a core and first and second nested helical flights mounted to the core. ... Hamilton Sundstrand Corporation

04/12/18 / #20180100702

Heat exchanger with support structure

A tubular heat exchanger includes a first flow path to receive a first fluid flow, wherein the first flow path is defined by a conduit, and a support structure with a plurality of support structure openings, wherein the support structure supports the first flow path, the plurality of support structure openings define a second flow path to receive a second fluid flow, and the first flow path is in thermal communication with the second flow path.. . ... Hamilton Sundstrand Corporation

04/12/18 / #20180100565

Actuator release mechanism

An actuator release mechanism comprising a longitudinal member, e.g. A piston, which is moveable axially to permit or prevent axial movement of the lock bolt and hence deployment of the actuator. ... Hamilton Sundstrand Corporation

04/12/18 / #20180099262

System with multiple adsorbents for ammonia and organic removal

An adsorbent system includes a passage and first and second adsorbents arranged in series in the passage. The first adsorbent includes granules of non-impregnated charcoal and the second adsorbent includes granules of acid- or metal salt-impregnated adsorbent. ... Hamilton Sundstrand Corporation

04/05/18 / #20180093493

Laser enhancements of micro cold spray printed powder

A micro cold spray printer system having: a printer housing having a longitudinal axis; a transfer tube defining an optical chamber oriented parallel and coaxial to a the longitudinal axis of the housing the optical chamber having an exit; a particle supply inlet fluidly connected to the optical chamber, the particle supply inlet in operation supplying particles to flow through the optical chamber along the longitudinal axis and out the exit; and a laser that in operation emits a laser beam into the optical chamber to heat the particles to a selected temperature. The laser beam is directed at an angle that is not parallel to the longitudinal axis.. ... Hamilton Sundstrand Corporation

03/29/18 / #20180092252

Pin fin heat sink with integrated phase change material and method

A pin fin heat sink includes a plurality of pin fins extending from a base plate, at least one of the plurality of pin fins defining a hollow portion therein. The heat sink also includes a phase change material sealed within the at least one pin fin to absorb transient thermal loads that the pin fin is subjected to.. ... Hamilton Sundstrand Corporation

03/29/18 / #20180091070

Redundant channel motor and method

A redundant channel motor includes a permanent magnet rotor. The motor also includes a plurality of stator sectors surrounding the permanent magnet rotor, each of the stator sectors disposed in a common plane, independently wound, and capable of driving the load of the permanent magnet rotor in the event of failure of one of the other stator sectors.. ... Hamilton Sundstrand Corporation

03/29/18 / #20180085829

Adjusting porosity in powder metal articles

A method of making an article includes coating an article formed using an additive manufacturing process technique, such as with laser sintering or a powder bed fusion technique. Pressure is thereafter applied to the coating and one or more surface-connected pores defined within the article are closed with the pressure. ... Hamilton Sundstrand Corporation

03/22/18 / #20180083425

Three-dimensional power distribution interconnect structure

An electrical power distribution system for a mobile platform, and a method for making such, includes a forming a substrate having a first panel connected to a second panel. The first panel resides in a first plane that differs from a second plan in which the second panel resides. ... Hamilton Sundstrand Corporation

03/22/18 / #20180080972

Detection of damper resistor degradation and failures

A system and method of detecting dampener resistor degradation and failure are provided. The method includes determining a normal operating admittance value of a filter that includes a dampener resistor, injecting a voltage signal with a frequency value at least one order of magnitude different from a filter resonant peak, receiving an admittance output in response the injected voltage signal, and comparing the admittance output with the normal operating admittance value to determine the presence of dampener resistor degradation and failure.. ... Hamilton Sundstrand Corporation

03/15/18 / #20180076623

Electrical accumulators for multilevel power systems

An electrical accumulator arrangement includes a plurality of energy storage modules having source and return leads. The source lead of a first energy storage module is connected to the return lead of a second energy storage module. ... Hamilton Sundstrand Corporation

03/15/18 / #20180074020

Movable member assembly having a sensor assembly

A sensor assembly is provided includes a sensor housing, a first sensor, and a second sensor. The sensor housing operatively connected to a body having a first end and a second end. ... Hamilton Sundstrand Corporation

03/15/18 / #20180073813

Counter-flow ceramic heat exchanger assembly and method

A heat exchanger assembly embodiment includes a plurality of laminated ceramic tape layers having at least one hole surrounded by at least one tape remainder portion. The plurality of layers is arranged in a build direction defined parallel to a counter-flow plane. ... Hamilton Sundstrand Corporation

03/15/18 / #20180073752

Passive liquid collecting device

A passive liquid collecting device has a reservoir with an outlet and one or more rigid structures within the reservoir. The rigid structures are configured to collect a liquid and direct the liquid to the outlet. ... Hamilton Sundstrand Corporation

03/15/18 / #20180073526

Nozzle with locking nut

A system is described for positioning and locking in place a nozzle within a cylindrical bore of a body, and a method for positioning and locking in place a nozzle within a cylindrical bore of a body is also described. The system has a nozzle having a tubular shape extending between a first end and a second end with an outer cylindrical surface and an inner surface, said inner surface comprising a thread. ... Hamilton Sundstrand Corporation

03/15/18 / #20180073431

Stepped high-pressure bleed control system

A system for controlling bleed air flow in an aircraft is described herein. High-pressure compressor bleed air is regulated in a stepped manner with a bleed full open/full closed valve and a second, bleed half open/full open valve, or with a complex multi-step valve. ... Hamilton Sundstrand Corporation

03/15/18 / #20180071950

Method of manufacturing a heat exchanger

A method of making a heat exchanger is disclosed that includes identifying a space for a heat exchanger fluid flow path. A carbon template is formed in the shape of the flow path space, with void space in the shape of a fluid guide that forms the flow path space. ... Hamilton Sundstrand Corporation

03/15/18 / #20180071659

Liquid-dissolved gas separators

A liquid-dissolved gas separator includes a metallic separator. The separator has a plurality of open pores that connect a liquid-facing surface of the separator with an opposed vacuum-facing surface of the separator for separating dissolved gases from a liquid traversing the liquid-facing surface of the separator body.. ... Hamilton Sundstrand Corporation

03/08/18 / #20180066997

Retaining systems and methods

A sensor system includes a sensor body with a proximal end and a distal end. The sensor body includes a radially extending flange positioned between the proximal end and the distal end. ... Hamilton Sundstrand Corporation

03/08/18 / #20180066670

Ventilation fan having a hybrid bearing system

A ventilation fan includes a shaft, a rotor, a motor housing, a bearing housing, and an air bearing. The shaft has a shaft body that extends between a first shaft end and a second shaft end. ... Hamilton Sundstrand Corporation

03/08/18 / #20180066666

Ventilation fan having air bearing system

A ventilation fan includes a shaft assembly, a rotor, a motor housing, and a bearing housing. The shaft assembly defines a first port and a second port. ... Hamilton Sundstrand Corporation

03/08/18 / #20180066647

Peristaltic motor and pump combination

A peristaltic pump system has a pump tube and a pump rotor engaging the pump tube. The pump rotor is drivable to rotate to move a pump fluid through the pump tube from a pump inlet to a pump outlet. ... Hamilton Sundstrand Corporation

03/08/18 / #20180066646

Metering for fluid motor and pump combination

A system has a fluid motor for receiving a pressurized fluid motor causing actuation of the fluid motor, with the fluid motor having a motor inlet and a motor outlet. The motor fluid is delivered from the motor outlet into a container. ... Hamilton Sundstrand Corporation

03/08/18 / #20180066589

High pressure relief valve nozzle

A high pressure relief valve includes a nozzle that is received within an internal bore of a valve housing. The nozzle has a nozzle body with a bore defined by an outlet bore inner diameter that is less than an inlet bore inner diameter. ... Hamilton Sundstrand Corporation

03/01/18 / #20180063887

Heated ptc element with protection circuit

A heater electrical short protection arrangement has a heating layer that is at least partially electrically conductive. A conductive layer is initially electrically insulated from the heating layer. ... Hamilton Sundstrand Corporation

03/01/18 / #20180063886

Ptc heater with autonomous control

A heating arrangement has a positive temperature coefficient (“ptc”) heater. A resistor is electrically in series with the ptc heater sized and configured to limit current through the ptc heater and the resistor below a selected value.. ... Hamilton Sundstrand Corporation

03/01/18 / #20180062461

Interior permanent magnet rotor

An interior permanent magnet (ipm) rotor as a well as method for providing and a system that includes an ipm rotor is provided. The ipm rotor includes a rotor body that rotates around a central rotational axis, wherein the rotor body is a ferromagnetic core with a central axial bore and is included of a plurality of rotor segments, wherein each rotor segment corresponds to a pole of the ipm motor, and wherein at least one of the rotor segments of the plurality of rotor segments includes a spoke-type interior permanent magnet (ipm) disposed within the rotor body and extending radially outward from the central axial bore to an outer surface of the rotor body, and a curved interior permanent magnet (ipm) disposed within the rotor body and extending radially outward at an incline with respect to a radial plane extending through a center of the spoke-type ipm.. ... Hamilton Sundstrand Corporation

03/01/18 / #20180062457

Switched reluctance motor with axial laminated construction

A switched reluctance motor includes a stator and a rotor disposed within the stator, wherein at least one of the stator and the rotor is formed from a plurality of laminate sheets, wherein each of the laminate sheets extends in an axial direction and the plurality of laminate sheets are disposed in a radial direction.. . ... Hamilton Sundstrand Corporation

03/01/18 / #20180058779

Integral drain assembly for a heat exchanger and method of forming

An integral drain assembly for a heat exchanger includes a plurality of passage walls defining a plurality of passages, each of the passage walls having a non-linear portion. Also included is a drain wall integrally formed with at least one of the passage walls to define a drain for each of the plurality of passages, the drain wall located proximate the non-linear portion of each of the plurality of passage walls.. ... Hamilton Sundstrand Corporation

03/01/18 / #20180058569

Shaft internal lubrication with rifling grooves

According to an aspect, a shaft internal lubrication system includes a shaft body having an outer wall and a central bore defining an inner wall. The shaft internal lubrication system also includes a plurality of lubrication holes axially distributed along the central bore and fluidically connecting the inner wall and the outer wall. ... Hamilton Sundstrand Corporation

03/01/18 / #20180057186

Ejection jack having a toggle assembly

A toggle assembly includes a first joint member having a first lug and a second lug, a second joint member, and a third joint member. The second joint member has a first arm that receives a first rolling element, a second arm that receives a second rolling element, a third arm, and a fourth arm. ... Hamilton Sundstrand Corporation

03/01/18 / #20180056793

Power generating systems having synchronous generator multiplex windings and multilevel inverters

Multiplex winding synchronous power generating systems and vehicle power systems are provided that include a rotating part including a plurality of windings, a primer mover configured to drive the rotating part, a stator part having a plurality of windings, a plurality of rectifiers, three 3-phase 5-level motor drives, at least one h-bridge, at least one 3-phase ac motor, and a generator voltage regulator that regulates current of voltages of local dc busses of the three 3-phase 5-level motor drives.. . ... Hamilton Sundstrand Corporation

02/22/18 / #20180054894

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

02/22/18 / #20180054150

Three level inverter midpoint control gain correction

A system and method for controlling a dc midpoint terminal voltage of a three level inverter is provided. The method includes receiving an input power signal at a three level motor controller system that includes a three level inverter, measuring, using a current sensor in the three level motor controller system, a dc current of the input power signal before the input power signal is provided to the three level inverter, and adjusting a zero-sequence inverter output voltage to adjust a midpoint voltage at the dc midpoint based on the measured dc current.. ... Hamilton Sundstrand Corporation

02/22/18 / #20180052484

Locking and unlocking mechanism

A locking mechanism for releasably locking a lock bolt against axial movement includes: a locking mechanism for releasably locking a lock bolt against axial movement, and: an elongate member 1 axially moveable relative to a housing and, in use, in moveable engagement with a lock bolt. The mechanism also includes a flap assembly 2 moveable between a first, closed position, located between the elongate member and the housing so as to prevent axial movement of the elongate member towards the housing, and a second, open position allowing the elongate member to move axially towards the housing.. ... Hamilton Sundstrand Corporation

02/22/18 / #20180051946

Heat exchanger arrangements and related methods

A heat exchanger arrangement includes a heat exchange body, a first fluid path extending through the heat exchange body, and a second fluid path extending through the heat exchange body in thermal communication with the first fluid path and fluidly isolated from the first fluid path. A bypass path is arranged externally of the heat exchange body and is fluidly connected in parallel with the first fluid path. ... Hamilton Sundstrand Corporation

02/22/18 / #20180051941

Heat exchanger with removable core assembly

A heat exchanger is having: a housing having a first housing inlet, a second housing inlet, a first housing outlet, and a second housing outlet; and a core assembly disposed within the housing and removably connected to the housing, the core assembly comprises: a first fluid passage fluidly connecting the first housing inlet to the first housing outlet and a second fluid passage fluidly connecting the second housing inlet to the second housing outlet. The first fluid passage is thermally connected to the second fluid passage.. ... Hamilton Sundstrand Corporation

02/22/18 / #20180051934

Heat exchangers with multiple flow channels

A heat exchanger can include a monolithically formed body defining at least two channels configured to allow fluid to flow therethrough, at least one of the at least two channels at least partially wrapping around or within at least one other of the at least two channels. In certain embodiments, the at least two channels can include a first channel and a second channel, wherein the first channel is at least partially wound around or within the second channel.. ... Hamilton Sundstrand Corporation

02/22/18 / #20180051921

Adaptively controlled defrost cycle time for an aircraft vapor cycle refrigeration system

A defrost cycle time of an aircraft vapor cycle refrigeration system is adaptively controlled. A pressure of refrigerant at an inlet of a compressor of the vapor cycle refrigeration system is sensed. ... Hamilton Sundstrand Corporation

02/22/18 / #20180051821

Servovalve

A servovalve comprising: a fluid transfer valve assembly comprising a supply fluid port and a control port; and a moveable valve member arranged to regulate flow of fluid from the supply fluid port 4 to the control port in response to a control signal; wherein the fluid transfer valve assembly comprises a housing in which the supply fluid port and the control port are formed, and an insert positioned in the housing into which the moveable valve member extends and in which a fluid flow path is formed between the supply fluid port and the control port.. . ... Hamilton Sundstrand Corporation

02/22/18 / #20180051818

Check valve

A check valve comprises a valve housing defining an opening and a plurality of flapper elements each pivotally mounted to the valve housing about a respective axis transverse to the opening in which the flapper elements permit flow of fluid through the opening and a closed position in which they block the flow of fluid through the opening. Each flapper element comprises a first side facing the valve housing sealing surface in the closed position, a second side, opposed to the first side and facing away from the valve housing sealing surface in the closed position, a base end, a first edge region extending away from the base end and a second edge region extending away from the base end.. ... Hamilton Sundstrand Corporation

02/22/18 / #20180051817

Servo valve spool

A spool assembly for a second stage of a servo valve comprises a spool having an axis (l) and an opening for a feedback member provided in a central region of the spool extending perpendicular to the axis. An adjustable joint is provided within the spool for securing a feedback member relative to the spool, comprising first and second jaw arms being displaceable relative to each other along the axis of the spool. ... Hamilton Sundstrand Corporation

02/22/18 / #20180051814

Servovalve

A servovalve comprising: a fluid transfer valve assembly comprising a supply port and a control port; a moveable valve spool arranged to regulate flow of fluid from the supply port to the control port in response to a control signal; and a drive member configured to axially move the valve spool relative to the fluid transfer assembly in response to the control signal to regulate the fluid flow.. . ... Hamilton Sundstrand Corporation

02/22/18 / #20180051745

High load capacity hybrid foil bearing

A bearing includes a bearing sleeve with a first portion and a second portion adjacent to the first portion. A bump foil extends along an inner face of the first portion of the bearing sleeve and a metal mesh extends along an inner face of the second portion of the bearing sleeve. ... Hamilton Sundstrand Corporation

02/22/18 / #20180051696

Bearing structures for gear pumps

A bearing structure for abutting a pair of gears of a gear pump includes a body including a face on which the gears rotate, an inlet defined in the body, and an outlet defined in the body. The bearing structure includes a sealing portion of the face configured to fluidly seal the inlet from the outlet, the sealing portion being defined as a portion of the face in sealing engagement with the gears at a rotational position of the gears wherein a volume contained by teeth of the gears and the face is constant or about constant as the gears rotate.. ... Hamilton Sundstrand Corporation

02/22/18 / #20180051376

Particulates and methods of making particulates

A method of making an article using an additive manufacturing technique includes depositing a powder. The powder includes particles formed from an article material and having particle surfaces. ... Hamilton Sundstrand Corporation

02/22/18 / #20180051178

Hydrophilic composition with condensation catalyst

A hydrophilic composition includes about 10 to about 30 parts by weight of an adhesive agent, about 10 to about 20 parts by weight of an inorganic compound, about 3 to about 10 parts by weight of an insolubilizer, about 0.3 to about 1.5 parts by weight of an antimicrobial agent, and about 1 to about 40 parts by weight of a condensation catalyst.. . ... Hamilton Sundstrand Corporation

02/22/18 / #20180050814

Release mechanism

A toggle release mechanism comprises a base element and a toggle element rotatably mounted at a first end to the base element about a first axis for rotation between a first, locking position and a second, release position. The mechanism further comprises a link element mounted at a first end to a second end of the toggle element about a second axis parallel to the first axis. ... Hamilton Sundstrand Corporation

02/22/18 / #20180050813

Inflight stow of ram air turbine

A ram air turbine system includes a ram air turbine and an actuator to move the ram air turbine between a stowed position and a deployed position. The actuator is in fluid communication with an aircraft hydraulic system configured to return the ram air turbine to the stowed position from the deployed position during operation of the aircraft utilizing hydraulic fluid pressure from the aircraft hydraulic system. ... Hamilton Sundstrand Corporation

02/22/18 / #20180050812

Aircraft fuel pump systems

An aircraft fuel system includes a first pump system that is mechanically driven and in selective fluid communication with a fuel tank and a fuel nozzle of an engine. The first pump system is configured to pump fuel to the fuel nozzles in a high flow rate condition and to be starved or nearly starved of fuel in a low flow rate condition. ... Hamilton Sundstrand Corporation

02/22/18 / #20180050804

Catalytic ozone removal

A method is disclosed for removing ozone from a gas. According to this method, the gas is contacted with an adsorbent that includes a transition metal oxide or metal organic framework to form a treated gas. ... Hamilton Sundstrand Corporation

02/22/18 / #20180050300

On-board aircraft dried inert gas system

An on-board aircraft dried inert gas system includes a source inert gas containing water, an air cycle or vapor cycle cooling system, and a heat exchanger condenser. The heat exchanger condenser has a heat absorption side in thermal communication with the air cycle or vapor cycle cooling system. ... Hamilton Sundstrand Corporation

02/15/18 / #20180048278

Power filter arrangement having a toroidal inductor package

A power filter arrangement includes a toroidal package having a toroid and a resistive element. The resistive element is disposed about an outer circumference of the toroid and is joined to the toroid. ... Hamilton Sundstrand Corporation

02/15/18 / #20180048145

Transient voltage protection circuits

A transient voltage protection circuit includes an inductor with a source-side terminal and a device-side terminal, a first stage with a protection element connected to the inductor source-side terminal, and a second stage with a protection element connected to the inductor device-side terminal. A ground terminal is connected to the inductor device-side terminal through the first stage and to the inductor source-side terminal through the first stage. ... Hamilton Sundstrand Corporation

02/15/18 / #20180045595

Systems and methods for calibrating a tool

A calibration system includes a housing, a drive shaft within the housing, a load application apparatus operatively connected to the drive shaft to apply a force to the drive shaft, and a plurality of housing transducers operatively connected to the drive shaft to measure at least one of an in-line torque or a prevailing torque of the drive shaft. A method for calibrating a tool includes generating at least one of a pass or fail output from a processing unit based on whether a variance between a prevailing torque from a tool transducer and a prevailing torque from an external tool is within a predetermined variance threshold. ... Hamilton Sundstrand Corporation

02/15/18 / #20180045216

Airfoil systems and methods of assembly

An airfoil assembly includes an airfoil body extending from a root to a tip defining a longitudinal axis therebetween. The airfoil body includes a leading edge between the root and the tip. ... Hamilton Sundstrand Corporation

02/15/18 / #20180045122

Fuel pump health detection

According to an aspect, a ground-based health test of a fuel pump of a fuel control system of a gas turbine engine is initiated. A starter speed of the gas turbine engine is determined while the ground-based health test is in progress. ... Hamilton Sundstrand Corporation

02/15/18 / #20180045118

Pressure regulating valve with flow anti-rotation

A sleeve for a pressure regulating valve includes a sleeve body surrounding a central axis and defined by an overall length extending from a first end to a second end. The sleeve body has a central sleeve bore extending from the first end to the second end. ... Hamilton Sundstrand Corporation

02/15/18 / #20180045114

Systems and methods of generating electrical power

A generator arrangement includes a generator and a pneumatic turbine. The pneumatic turbine is operably connected to the generator. ... Hamilton Sundstrand Corporation

02/15/18 / #20180044026

Annular ozone converter with replaceable core

An ozone converter includes a toroidal shaped inlet housing and an outlet housing that is removably coupled to the inlet housing. The converter also includes a ring shaped ozone removable core disposed at least partially within the inlet housing.. ... Hamilton Sundstrand Corporation

02/15/18 / #20180043790

Active rectifier topology

An active rectifier module includes a matrix converter having a plurality of phase inputs and a plurality of phase outputs, a rectifier including a plurality of inputs, each connected to a corresponding phase output in the plurality of phase outputs, a filter capacitor connected across a dc output of the rectifier, and a dc output configured to provide dc power to a load.. . ... Hamilton Sundstrand Corporation

02/08/18 / #20180042138

Actuated immersion cooled electronic assemblies

An immersion cooled electronics arrangement includes a housing containing a coolant, an electronic device submerged within the housing and in thermal communication with the coolant, and a variable volume body. The variable volume body is disposed within the housing. ... Hamilton Sundstrand Corporation

02/08/18 / #20180041028

Hybrid energy storage module arrangements

A hybrid energy storage module includes a bus lead and two or more high-power modules connectable to the bus lead. A controller is operably connected to a first of the high-power modules and a second of the high-power module. ... Hamilton Sundstrand Corporation

02/08/18 / #20180040419

Multilayered coils

A method of producing electrical coils includes preparing a plurality of coil layers. Each coil layer is prepared by printing an electrically conductive coil pattern on a layer substrate. ... Hamilton Sundstrand Corporation

02/08/18 / #20180038718

Passive monitoring of sensor calibration status

A system has at least one sensor and a control for analyzing a signal from the sensor. The sensor is operable to send a signal indicative of a presence of a particular occurrence to the control. ... Hamilton Sundstrand Corporation

02/08/18 / #20180038657

Aircraft electronics thermal regulation systems

An electronics cooling system for an aircraft includes a heat exchanger comprising a coolant circuit, an air circuit, and a fuel circuit such that each of the circuits is in thermal communication with at least one of the other circuits. The coolant circuit is in thermal communication with one or more aircraft electronics. ... Hamilton Sundstrand Corporation

02/08/18 / #20180038468

Joined flex spline for compound harmonic drive

A compound harmonic drive including: a flexible ring having an inner surface and an outer surface; a first flexible gear disposed around the outer surface of the flexible ring and coaxial to the flexible ring; a second flexible gear disposed around the outer surface of the flexible ring and coaxial to the flexible ring; a first ring gear that meshes with the first flexible gear and is coaxial to the first flexible gear; and a second ring gear that meshes with the second flexible gear and is coaxial to the second flexible gear. The first flexible gear and second flexible gear are fixedly attached to the outer surface of the flexible ring.. ... Hamilton Sundstrand Corporation

02/08/18 / #20180038467

Inverted compound harmonic drive

A compound harmonic drive including: a first internal ring gear; a second internal ring gear, the second internal ring gear being coaxial to the first internal ring gear; a first external gear located within the first internal ring gear and coaxial to the first internal ring gear, the first external gear meshes with the first internal ring gear; and a second external gear located within the second internal ring gear and coaxial to the second internal ring gear, the second external gear meshes with the second internal ring gear. The first internal ring gear and the second internal ring gear are composed of a flexible material.. ... Hamilton Sundstrand Corporation

02/08/18 / #20180038449

Power drive unit with dual gear ratio mechanism

A gear ratio mechanism includes an input shaft, a first planetary gear set, a second planetary gear set, and a carrier link associated with an output shaft. The carrier link is configured to couple the first planetary gear set and the second planetary gear set. ... Hamilton Sundstrand Corporation

02/08/18 / #20180038349

Release mechanism

A release mechanism comprises a locking body mounted for reciprocating movement in a first axial direction between a locked position and a released position. A force transmitting element is coupled to the locking body for transmitting a force (f) to the locking body for moving the locking body from the locked position to the released position. ... Hamilton Sundstrand Corporation

02/08/18 / #20180037337

Remote data capture and management systems

A computer implemented method for managing data of a remote system includes receiving, at a processor on the remote system, fundamental data from a monitored subsystem of the remote system and/or at least one associated subsystem of the remote system as specified by a diagnostic protocol for the monitored subsystem and wirelessly transmitting the fundamental data to a remote support center that is separate from the remote system. The remote system applies additional, non-certified, logic to determine if augmented diagnostic data is desired. ... Hamilton Sundstrand Corporation

02/08/18 / #20180037334

Catalytic fuel tank inerting apparatus for aircraft

Aircraft fuel tank inerting systems and methods are provided. The aircraft fuel tank inerting systems include a fuel tank having fuel therein, an evaporator container fluidly connected to the fuel tank and arranged to receive inerting fuel from the fuel tank, the evaporator container evaporating the inerting fuel to generate a first reactant, a second reactant source arranged to supply a second reactant, and a catalyst fluidly connected to the evaporator container and arranged to receive the first reactant and the second reactant, wherein the catalyst includes a catalyst material to induce a chemical reaction between the first reactant and the second reactant to generate an inert gas, wherein the inert gas is supplied into an ullage of the fuel tank.. ... Hamilton Sundstrand Corporation

02/08/18 / #20180037019

Controlled grain size structures

A structure includes a first substrate and a variable grain layer disposed on or formed into the first substrate. The variable grain layer includes a first grain portion having a first grain size and second grain portion having a second grain size. ... Hamilton Sundstrand Corporation

02/01/18 / #20180034353

Motor-generator with radial-flux double-sided stator

A motor-generator includes a double-sided stator having a first stator pole wound with a first stator winding of a first channel and a second stator pole wound with a second stator winding of a second channel. The first stator pole and the second stator pole are axially aligned with respect to a centerline of the motor-generator and radially offset between a radially inner side and a radially outer side of the double-sided stator. ... Hamilton Sundstrand Corporation

02/01/18 / #20180031290

Vapor cycle refrigeration system filter life estimation

Operational parameters of an aircraft vapor cycle refrigeration system are measured via a plurality of sensors while the vapor cycle refrigeration system is operating. The measured operational parameters are transmitted to a computer system. ... Hamilton Sundstrand Corporation

02/01/18 / #20180029722

Ram air turbine cooling inlet screen heating system

A heating system for a ram air turbine includes a heated screen that is disposed across an air inlet defined by a strut. The strut has a first end that is connected to a generator that is operably connected to a turbine that is connected to a second end of the strut. ... Hamilton Sundstrand Corporation

01/25/18 / #20180023714

Check valve

According to the present disclosure, there is provided a check valve comprising a valve housing defining a pair of valve openings. A pair of flapper elements are pivotably mounted to at least one hinge pin for rotation relative to the housing between an open position in which they permit fluid flow through the respective valve openings and a closed position in which they prevent fluid flow through the valve openings. ... Hamilton Sundstrand Corporation

01/25/18 / #20180021878

Method of manufacturing metal articles

A method for making an article is disclosed. According to the method, a digital model of the article is generated. ... Hamilton Sundstrand Corporation

01/18/18 / #20180020574

Mounting arrangements for electrical contactors

A mounting arrangement for an electrical contactor includes a panel and a post. The post has a first end and a second end protruding from the panel. ... Hamilton Sundstrand Corporation

01/18/18 / #20180020573

Thermal management systems for electronics

A refrigeration system for electronics includes a compressor disposed on a main line and configured to compress a refrigerant in the refrigeration system and a condenser disposed downstream of the compressor on the main line. An evaporator line is in fluid communication with the main line downstream of the condenser and has an evaporator configured to receive heat into the refrigerant from an external heat source. ... Hamilton Sundstrand Corporation

01/18/18 / #20180020568

Molded card guide chassis

A chassis to receive a line replaceable module including a molded body formed from a composite material, a card guide integrally formed in the molded body to receive the line replaceable module, the card guide including a card guide wall integrally formed in the molded body and extending outwardly from the molded body, and a plurality of tolerance features disposed within the card guide to retain the line replaceable module.. . ... Hamilton Sundstrand Corporation

01/18/18 / #20180020565

Double line replaceable module locking bracket

A locking bracket system for a pair of line replaceable modules (lrms) includes a locking bracket assembly including an expanding member configured to be actuated to expand; and an extension bracket attached to the expanding member. The extension bracket extends from the expanding member in a direction opposite that the expanding member expands. ... Hamilton Sundstrand Corporation

01/18/18 / #20180019718

Differential signal conditioner with common mode voltage error compensation

A differential signal conditioner circuit with common mode voltage (cmv) compensation is provided. The circuit includes a signal multiplexer that receives a input signal that includes a high and low signal and a reference cmv signal, a differential amplifier coupled to the signal multiplexer that receives the reference cmv signal and outputs a cmv error value during a first cycle, and receives the input signal and outputs an amplified difference signal during a second cycle. ... Hamilton Sundstrand Corporation

01/18/18 / #20180019691

Exciter drive circuit including configurable flyback unit with fast energy field collapse

A power system includes an integrated drive generator (idg) including an exciter field winding. A generator control unit (gcu) includes exciter drive circuit configured to electrically energize the exciter field winding, and a main stator configured to output voltage to at least one electrical load. ... Hamilton Sundstrand Corporation

01/18/18 / #20180017987

Detent alignment mechanism assembly

A detent alignment mechanism assembly is provided and includes a shaft, a lock mechanism configured to selectively occupy an unlocked position at which the shaft is movable and a locked position at which the shaft is immovable, a detent mechanism coupled to the shaft and formed to define detent positions for the shaft to assume and move between and a detent alignment mechanism configured to provide to an operator of the shaft feedback and assistance corresponding to assumptions of the detent positions by the shaft during movements thereof by the operator.. . ... Hamilton Sundstrand Corporation

01/18/18 / #20180017331

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

01/18/18 / #20180016988

Air turbine start system

An air turbine starter device comprises a rotor arranged in a cavity of a housing, a first manifold having a cavity with a port operative to direct compressed air to the rotor, a second manifold having a cavity with a port operative to direct compressed air to the rotor, wherein the first manifold is larger than the second manifold.. . ... Hamilton Sundstrand Corporation

01/18/18 / #20180016671

Material joining

A method of joining includes bringing a bulk metallic glass (bmg) material to a temperature lower than the crystallization temperature of the bmg material and depositing the bmg material onto a first substrate with interlock surface features such that the bmg material interlocks with the interlock surface features of the substrate. The method includes joining a second substrate to the bmg material, wherein the second substrate includes interlock surface features such that the bmg material interlocks with the interlock surface features of both the first and second substrates, joining the first and second substrates together to produce a fully amorphous joint between the first and second substrates.. ... Hamilton Sundstrand Corporation

01/18/18 / #20180016025

Fuel deoxygenation systems

A fuel deoxygenation system for an aircraft includes a hydrocarbon recycler configured to recycle hydrocarbon gas into fuel. The hydrocarbon recycler includes a housing that partially defines an ullage channel configured to fluidly communicate with both an ullage of an aircraft fuel tank and a vent, wherein the housing partially defines a hydrocarbon recirculation channel configured to fluidly communicate with a liquid portion of a fuel tank. ... Hamilton Sundstrand Corporation

01/18/18 / #20180016023

Temperature control system for fuel tank inerting system

A fuel tank inerting system is provided including an air flow comprising air from a first source having a first temperature and air from a second source having a second temperature. The second temperature is cooler than the first temperature. ... Hamilton Sundstrand Corporation

01/18/18 / #20180015999

Electromechanical hinge-line rotary actuator

An electromechanical rotary actuator includes a drive member, a motor disposed inside and directly coupled to the drive member, and an output arm. The motor has a rotor configured toward an outside of the motor and directly coupled to an input of the drive member and a stator configured toward an inside of the motor and positioned inside the rotor. ... Hamilton Sundstrand Corporation

01/18/18 / #20180015831

Integrated modular electric power system for a vehicle

A power system architecture for a vehicle includes a source management unit having at least a generator, a first stored energy component, and a second stored energy component. A high voltage dc bus connects a high voltage load to the source management unit. ... Hamilton Sundstrand Corporation

01/18/18 / #20180015539

Additive manufacturing method

A method for making an article is described that includes generating a digital model of the article that comprises an internal cavity. The digital model is inputted into an additive manufacturing apparatus or system comprising an energy source. ... Hamilton Sundstrand Corporation

01/11/18 / #20180014422

Zero insertion force card guide

A housing for use with line replaceable modules includes a housing body, an access cover associated with the housing body, a guide body disposed within the housing body, a guide cam disposed within the guide body, wherein the guide cam includes at least one guide feature, a clamping cam in sliding contact with the guide cam, wherein the clamping cam includes at least one follower to interface with the at least one guide feature, and an actuating lever associated with the clamping cam to interface with the access cover, wherein the actuating lever translates the clamping cam relative to the guide cam.. . ... Hamilton Sundstrand Corporation

01/11/18 / #20180010981

Bearing monitoring system for an air cycle machine and method of monitoring

A bearing monitoring system for an air cycle machine includes a housing. Also included is a compressor disposed within the housing. ... Hamilton Sundstrand Corporation

01/11/18 / #20180010864

Heat exchanger with interleaved passages

A heat exchanger includes first fluid passages that each have a first inlet that communicates into a first core passage and then a first outlet. The first inlet has a first inlet cross-sectional perimeter. ... Hamilton Sundstrand Corporation

01/11/18 / #20180010694

Starter air valve with multiple disc valves

A disc assembly for use in an air valve with a valve body includes an outer disc with a concentric opening therethrough and an outer seal area, the outer seal area to selectively seal against the valve body, and an inner disc disposed in the concentric opening of the outer disc, the inner disc to selectively seal against the outer disc.. . ... Hamilton Sundstrand Corporation

01/11/18 / #20180010648

Mechanical shear fuse for engine motoring system

A motoring system for a gas turbine engine having: a reduction gear train having an input and an output; an electric motor operably connected to the input; a clutch operably connected to the output, the clutch in operation engages and disengages the reduction gear train; and a mechanical shaft fuse operably connecting the output to the clutch, the mechanical shaft fuse in operation shears when torque on the mechanical shaft fuse is greater than or equal to a selected value. The mechanical shaft fuse includes a plurality of through holes.. ... Hamilton Sundstrand Corporation

01/11/18 / #20180010523

Gas turbine engine starter reduction gear train with geared rotary actuator

According to an aspect, a system for a gas turbine engine includes a reduction gear train operable to drive rotation of a starter gear train that interfaces to an accessory gearbox of the gas turbine engine. The reduction gear train includes a starter interface gear that engages the starter gear train and a core-turning clutch operably connected to the starter interface gear. ... Hamilton Sundstrand Corporation

01/11/18 / #20180010522

Gas turbine engine starter reduction gear train with stacked planetary gear systems

According to an aspect, a system for a gas turbine engine includes a reduction gear train operable to drive rotation of a starter gear train that interfaces to an accessory gearbox of the gas turbine engine. The reduction gear train includes a starter interface gear that engages the starter gear train, a core-turning clutch operably connected to the starter interface gear, and a plurality of stacked planetary gear systems operably connected to the core-turning clutch and a core-turning input. ... Hamilton Sundstrand Corporation

01/11/18 / #20180010521

Pinned mechanical fuse for engine motoring system

A motoring system for a gas turbine engine having: a reduction gear train having an input and output; a motor operably connected to the input; a clutch operably connected to the output, the clutch in operation engages and disengages the reduction gear train; and a pinned mechanical fuse operably connecting the output to the clutch, the pinned mechanical fuse having at least one shear pin. The pinned mechanical fuse having: an outer sleeve having a first section, second section, inner chamber, outer wall, and at least one through hole connecting the inner chamber to the outer wall within the first section; and an inner sleeve having a first portion, second portion, outer surface, and at least one blind hole located in the outer surface within the second portion. ... Hamilton Sundstrand Corporation

01/11/18 / #20180009537

Ozone converter with altitude activated actuator

An ozone converter includes an outer housing having an inlet and an outlet, a first channel disposed between the inlet and the outlet, and a bypass channel disposed between the inlet and the outlet and separated from first channel. The converter also includes a core disposed within the first channel and a bypass control mechanism that includes one more blocking elements that causes inlet air to pass through the first channel or the bypass channel based on an altitude of the ozone converter. ... Hamilton Sundstrand Corporation

01/11/18 / #20180009399

Electrical contactor and panel assemblies

An electrical contactor assembly includes an electrical contactor, a post in electrical communication with the electrical contactor, an insulator body, and a heat sink. The insulator body is in intimate mechanical contact with the post. ... Hamilton Sundstrand Corporation

01/04/18 / #20180006533

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

01/04/18 / #20180006413

Contactor in power distribution assembly

An electrical contactor assembly includes an electrical contactor having an electrical lead having a contactor pin extending therefrom, an electrical bus bar, and at least one post extending between the electrical contactor and the electrical bus bar. The post is constructed from an electrically and thermally conductive material. ... Hamilton Sundstrand Corporation

01/04/18 / #20180005743

Metering valve

A metering valve comprising a solenoid having: a coil mounted on a core; and an armature moveable axially with respect to the core and against a return bias in response to a current in the coil; a variable capacitor having a first plate mounted for movement with the armature and a second plate fixed with respect to the core. The metering valve comprises an electronic feedback loop which is used to adjust the current in the coil based on a feedback signal derived from of the capacitance of the variable capacitor. ... Hamilton Sundstrand Corporation

01/04/18 / #20180003162

Spring compression device

A spring compression device comprises a spring sleeve configured to receive a spring; a spring adjustment member provided on and engaged with the spring sleeve and configured to abut a spring mounted on the spring sleeve, wherein the spring sleeve and spring adjustment member define an operating length (l) of the spring compression device, and the spring adjustment member is configured to be moved relative to the spring sleeve to adjust the operating length of the spring compression device; and at least one blocking component for blocking movement between the spring sleeve and the spring adjustment member.. . ... Hamilton Sundstrand Corporation

01/04/18 / #20180002031

Hydraulically assisted rat actuator latch mechanism

A ram air turbine actuator having: a housing; at least one solenoid; a latch mechanism operably connected to the at least one solenoid and located within the housing, the latch mechanism in operation moves from a first position to second position when the at least one solenoid is activated; and a hydraulic pressure system operably connected to the latch mechanism, the hydraulic pressure system in operation moves the latch mechanism from the second position to the first position using hydraulic pressure from a hydraulic fluid, when the at least one solenoid is deactivated. The hydraulic pressure system is located within the housing. ... Hamilton Sundstrand Corporation

01/04/18 / #20180001844

Methodology for simplification of aircraft harnessing in multi-redundant control systems

A method and control system that implements a particular aircraft harnessing for an aircraft is provided. The control system includes an effector line-replaceable unit (lru) including a first connection port, a second connection port, and a first interconnect wire internally connecting the first connection port and the second connection port, a first control lru connected using a first harnessing to the effector lru, and a second control lru connected using a second harnessing to the effector lru, wherein the first control lru and the second control lru are configured to communicate using the first interconnect wire in the effector lru.. ... Hamilton Sundstrand Corporation








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