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Rolls royce North American Technologies Inc patents


Recent patent applications related to Rolls royce North American Technologies Inc. Rolls royce North American Technologies Inc is listed as an Agent/Assignee. Note: Rolls royce North American Technologies Inc may have other listings under different names/spellings. We're not affiliated with Rolls royce North American Technologies Inc, we're just tracking patents.

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 new patent  Exhaust system with directed energy beam interference avoidance system

A self-powered laser system for discharging high energy light beams is disclosed. The laser system includes a laser unit, a power unit, and an exhaust system. The laser unit is capable of discharging beams in multiple directions. The exhaust system directs exhaust gasses discharged from the power unit.... Rolls royce North American Technologies Inc

 new patent  Expandable exhaust cone

An expandable exhaust cone assembly is described which is able to move from a collapsed position to an expanded position.... Rolls royce North American Technologies Inc

 new patent  Thermal management system controlling dynamic and steady state thermal loads

... Rolls royce North American Technologies Inc

Systems and methods for selectively augmenting power output of a gas turbine engine

Systems and methods for augmenting power output when operating a load having relatively brief periods of high energy demand and high heat generation. A system comprises a gas turbine engine including a coolant injection assembly, an electrical generator coupled to the gas turbine engine, a high-energy operating load coupled to... Rolls royce North American Technologies Inc

Load alignment assistance during startup of synchronous grid

Methods and systems for load alignment assistance are provided. An alignment current may be provided with a partial power converter through an n-phase supply line to a synchronous alternating current (AC) motor during a startup of a synchronous AC grid. The synchronous AC motor may receive polyphase AC power through... Rolls royce North American Technologies Inc

Pre-alignment of synchronous loads prior to starting grid

Systems and methods for pre-aligning rotors of synchronous motors on a synchronous AC grid prior to startup of the motors are provided. A partial power converter may provide an alignment current through an n-phase supply line to a synchronous AC motor. The synchronous AC motor may be configured to receive... Rolls royce North American Technologies Inc

Active damping of synchronous grid oscillations using partial power converter

Methods and systems are provided to damp oscillations in a synchronous alternating current (AC) grid. Current may be received from the synchronous AC grid through a phase of an n-phase supply line. The current received from the synchronous AC grid is supplied to a phase of the synchronous motor. A... Rolls royce North American Technologies Inc

Systems and methods for selectively augmenting power output of a gas turbine engine

Systems and methods for augmenting power output when operating a load having relatively brief periods of high energy demand and high heat generation. A system comprises a gas turbine engine including a coolant injection assembly, an electrical generator coupled to the gas turbine engine, a high-energy operating load coupled to... Rolls royce North American Technologies Inc

Method of assembly of bi-cast turbine vane

One aspect of the present disclosure includes a turbine vane assembly comprising a vane made from ceramic matrix composite material having an outer wall extending between a leading edge and a trailing edge and between a first end and an opposing second end; an endwall made at least partially from... Rolls royce North American Technologies Inc

Gas turbine engine with thermoelectric system

A gas turbine engine includes a lubrication system, fuel system and thermoelectric heat exchanger adapted for selective operation in response to operational states of the gas turbine engine.... Rolls royce North American Technologies Inc

Vane actuation system for a gas turbine engine

A compressor for use in a gas turbine engine is disclosed herein. The compressor includes a case, vanes, and a vane actuation system. The vanes are arranged circumferentially adjacent to one another about a central axis inside the case and each one of the vanes is configured for rotation about... Rolls royce North American Technologies Inc

Turbine shroud with forward case and full hoop blade track

A gas turbine engine includes a turbine shroud assembly arranged around a turbine wheel assembly. The turbine shroud assembly includes an annular turbine case, a blade track, and a forward case. The turbine case is arranged around a central axis of the turbine assembly. The blade track is located radially... Rolls royce North American Technologies Inc

Infrared suppression system in a gas turbine engine

According to one aspect, a system for alignment of vanes to suppress infrared detection in a gas turbine engine is provided. The system includes a first vane disposed on a first component, and a second vane disposed on a second component. The second vane is configured to engage the first... Rolls royce North American Technologies Inc

Integrated aircraft cooling system

An integrated aircraft cooling system comprising a turbine engine and a plurality of secondary cooling streams, wherein the turbine engine core exhaust stream drives the plurality of secondary cooling streams. A core exhaust stream outlet has a periphery and a composite secondary outlet positioned around the periphery of the core... Rolls royce North American Technologies Inc

Ramburning engine with inlet turbine

A gas turbine engine assembly for high Mach number operation comprising an inlet turbine assembly, a gas turbine engine core, and a ramburner arranged along a common axis. During high Mach number operation, working fluid flow is selectively directed through the inlet turbine assembly to cool the working fluid prior... Rolls royce North American Technologies Inc

Gas engine component with cooling passages in wall and making the same

A method of manufacturing a gas turbine engine component and said resulting component configuration are disclosed. The method includes providing a ceramic structure including a sacrificial ceramic core. The ceramic structure is inserted into a casting mold. A component material is introduced into the casting mold. The ceramic structure is... Rolls royce North American Technologies Inc

Combustor cassette liner mounting assembly

Disclosed herein are examples of gas turbine engines and assemblies of combustors and turbine nozzles for such gas turbine engines. The combustor wall includes an inner wall, an outer wall, and an upstream dome. The combustor outer wall and/or inner wall may comprise of a plurality of combustor cassettes. A... Rolls royce North American Technologies Inc

Blade track assembly, components, and methods

A blade track assembly is disclosed having a variety of features. The assembly can have annular or segmented components, or a combination of the two. In one form the assembly includes blade tracks having a forward and aft edge that can be received in an opening of respective hangers. The... Rolls royce North American Technologies Inc

Split line flow path seals

A gas turbine engine assembly adapted to separate a high pressure zone from a low pressure zone includes a seal assembly configured to block gasses from passing through the interface of two adjacent components. The seal assembly includes a rod.... Rolls royce North American Technologies Inc

Singular stator vane control

Systems and methods for controlling stators of a compressor of a gas turbine engine are provided. The stators and rotatable blades may be included in a stage of the compressor. The rotatable blades may be configured to rotate about an axial axis of the compressor, and each of the stators... Rolls royce North American Technologies Inc

Axial flow compressor assembly

An axial flow compressor comprises a tubular casing which encases a rotatable shaft, a pair of rotor segments coupled to the rotatable shaft and each comprising a bladed disc, and a banded stator segment disposed between the pair of rotor segments and comprising a plurality of stator vanes extending between... Rolls royce North American Technologies Inc

Axial compressor with radially outer annulus

An axial compressor comprises a plurality of compressor stages positioned axially adjacent each other within a casing. Each of the plurality of compressor stages includes a rotor segment and a banded stator segment. An annulus is formed between the casing and an outer flowpath ring of the banded stator segment.... Rolls royce North American Technologies Inc

Axial compressor with radially outer annulus

An axial compressor comprises a plurality of compressor stages positioned axially adjacent each other within a casing. Each of the plurality of compressor stages includes a rotor segment and a banded stator segment. An annulus is formed between the casing and an outer flowpath ring of the banded stator segment.... Rolls royce North American Technologies Inc

Composite rotatable assembly for an axial-flow compressor

A composite rotatable assembly for an axial flow compressor comprises a spool having a plurality of blade assemblies arranged in stages on the spool and attached thereto by a wound band. Each blade assembly comprises a blade and a base, with the base having a forward tang extending axially forward... Rolls royce North American Technologies Inc

Air injection for an axial compressor with radially outer annulus

An axial compressor comprises a plurality of compressor stages positioned axially adjacent within a casing. Each of the plurality of compressor stages comprise a rotor segment and a banded stator segment positioned axially adjacent the rotor segment. An annulus is formed between the casing and an outer flowpath ring of... Rolls royce North American Technologies Inc

Intercooling for an axial compressor with radially outer annulus

An axial compressor comprises a plurality of compressor stages positioned axially adjacent one another within a casing. Each of the plurality of compressor stages comprise a rotor segment and a banded stator segment positioned axially adjacent the rotor segment. An annulus is formed between the casing and an outer flowpath... Rolls royce North American Technologies Inc

Deep heat recovery gas turbine engine

A gas turbine engine may include a deep heat recovery system, such as a deep heat recovery super critical carbon dioxide (sCO2) system. The deep heat recovery system may include two-stage cooling of the working fluid (such as carbon dioxide—CO2) where at least one of cooling stages is recuperative by... Rolls royce North American Technologies Inc

Swirl stabilized vaporizer combustor

A gas turbine engine and a combustor are described herein. The combustor includes a fuel vaporizer coupled to a combustor wall, which extends into a combustion chamber. A fuel injector having a nozzle extends within a portion of the fuel vaporizer. A dome swirler is coupled to an upstream dome... Rolls royce North American Technologies Inc

System and non-intrusive thrust measurement

A system and method of non-intrusive thrust measurement of a gas turbine engine. The system comprises a transmitter disposed at a boundary of fluid flow and at least one receiver adapted to receive transmissions from the transmitter. A processor is coupled to the receivers to determine a parameter from a... Rolls royce North American Technologies Inc

Fault tolerant superconducting magnetic energy storage (smes) device

A superconducting magnetic energy storage (SMES) device having a plurality of interwoven windings provides for alternative discharge paths for energy stored as magnetic fields in the windings in response to an open-circuit winding fault in one of the windings.... Rolls royce North American Technologies Inc

Clutch mechanism and controlling fan speed

According to one aspect, a clutch mechanism includes a control member. The control member is adapted to receive motive power and includes a first dry clutch member and a first viscous clutch member. The clutch mechanism further includes an output member that includes a second dry clutch member and a... Rolls royce North American Technologies Inc

Impeller shroud with slidable coupling for clearance control in a centrifugal compressor

A system for controlling the clearance distance between an impeller blade tip of a centrifugal compressor and a radially inner surface of an impeller shroud in a turbine engine. The system comprises a high pressure air source, an air piston mounted between an engine casing and the shroud and adapted... Rolls royce North American Technologies Inc

Gas turbine engine afterburner

An afterburner for use with a gas turbine engine includes a plurality of vanes distributed downstream of a turbine of the gas turbine engine. The vanes can include one or more exit apertures through which hot combustion flow from a pilot can be injected. The exit apertures can be protrusions... Rolls royce North American Technologies Inc

Turbine shroud with full hoop ceramic matrix composite blade track and seal system

A gas turbine engine includes a blade track, a support assembly, and a seal system. The blade track is arranged around a central axis of the gas turbine engine to direct gasses through the gas turbine engine. The support assembly is arranged around the blade track to support the blade... Rolls royce North American Technologies Inc

Low pressure generator with electrical assembly for gas turbine engine

A gas turbine engine and methods of operation include a low pressure electric motor-generator having an electrical assembly for electrical connection.... Rolls royce North American Technologies Inc

11/23/17 / #20170335710

Control of low pressure generator for gas turbine engine

A turbofan gas turbine engine includes low pressure (LP) motor-generator operable in either a generation mode or a drive mode, an high pressure (HP) motor-generator operable in a either a generation mode or a drive mode, and a power control module for selectively operating the LP and HP motor-generators according... Rolls royce North American Technologies Inc

11/23/17 / #20170335713

Gas turbine engines with flutter control

A gas turbine engine and methods of operation are disclosed including a low pressure motor-generator and flutter control system.... Rolls royce North American Technologies Inc

11/23/17 / #20170335795

Low pressure generator for gas turbine engine

A gas turbine engine and methods of operation include a low pressure electric motor-generator arranged for selective operation in a generator mode to generate electrical power or a drive mode to assist rotation of a low pressure drive shaft of the engine.... Rolls royce North American Technologies Inc

11/16/17 / #20170327238

Electrical assist for aircraft

Methods and systems to electrically assist an internal combustion engine of an aircraft may be provided. A first bladed rotor may be rotated by a first internal combustion engine. Electricity may be generated from a first motor generator by rotating a first shaft of the first motor generator with the... Rolls royce North American Technologies Inc

11/09/17 / #20170320585

Optionally hybrid power system

The disclosure is directed to an optionally hybrid power system that may operate either as a traditional power system, deriving power from a single power source, or as a hybrid power system, deriving power from multiple types of power sources. An example optionally hybrid power system may include a gas... Rolls royce North American Technologies Inc

11/09/17 / #20170320586

Engine degredation management via multi-engine mechanical power control

A multi-engine power system is described that includes at least a first engine and a second engine configured to jointly provided mechanical power to the multi-engine power system. The multi-engine power system further includes a controller configured to estimate a deterioration factor of the first engine. The controller is further... Rolls royce North American Technologies Inc

11/09/17 / #20170321567

Ceramic matrix composite seal segment for a gas turbine engine

A ceramic matrix composite (CMC) seal segment for use in a segmented turbine shroud for radially encasing a turbine in a gas turbine engine. The CMC seal segment comprises an arcuate flange having a surface facing the turbine and a portion defining a bore for receiving an elongated pin, with... Rolls royce North American Technologies Inc

11/09/17 / #20170324360

Multiple engine condition matching via electrical power extraction control

A multi-engine power system is described that includes a load requiring a total amount of electrical power, a first engine configured to provide a first portion of the total amount of electrical power to be provided to the load, and a second engine configured to provide a second portion of... Rolls royce North American Technologies Inc

11/02/17 / #20170314418

Lubrication scavenge system for a turbine engine with counter-rotating shafts

A lubricant scavenging system for a turbine engine having a pair of concentric, counter-rotating shafts. The system comprises a lubricant sump housing having a radially inner surface, a pair of pedestal mounts each adapted to receive a bearing assembly from a respective shaft, a lubricant collection point axially disposed between... Rolls royce North American Technologies Inc

10/26/17 / #20170306762

Variable pitch fan for a gas turbine engine

A gas turbine engine airflow member is disclosed having spherical interface shapes at a tip end and a hub end. In one embodiment, the airflow member is a fan blade. The spherical interface shapes can be convex or concave. In one form, the tip end spherical shape is axially shifted... Rolls royce North American Technologies Inc

10/26/17 / #20170306841

Reverse flow gas turbine engine with radially outward turbine

A gas turbine engine includes a propulsor, a compressor comprising a compressor rotor, and a turbine comprising a turbine rotor fixedly mechanically coupled to the compressor rotor. The propulsor and the compressor are arranged in axial flow series. The turbine rotor is radially outward of the compressor rotor, and the... Rolls royce North American Technologies Inc

10/19/17 / #20170298748

Gas turbine engine with compliant layer for turbine vane assemblies

A turbine vane assembly for use in a gas turbine engine includes an endwall, a flow path component, and a load-distribution system. The endwall is arranged around a central axis of the turbine vane assembly. The flow path component is configured to direct fluid flow through the turbine vane assembly.... Rolls royce North American Technologies Inc

10/19/17 / #20170298753

Turbine shroud with sealed box segments

A turbine shroud adapted to extend around a bladed turbine wheel to block gasses from passing over the bladed turbine wheel is disclosed. In a segmented embodiment, each turbine shroud segment may include a carrier segment and a blade track segment. The carrier segment may comprise metallic materials and may... Rolls royce North American Technologies Inc

10/19/17 / #20170298764

Compartmentalization of cooling air flow in a structure comprising a cmc component

A structure in a gas turbine engine comprises a spar and a CMC component adjoining the spar and separated from the spar by a cavity supplied by cooling air. At least one rope seal is installed in the cavity within a groove made in the spar to thus compartmentalize the... Rolls royce North American Technologies Inc

10/12/17 / #20170292531

Fluid cooling system integrated with outlet guide vane

A fan module for a gas turbine engine is disclosed herein. The fan module includes a fan, a plurality of outlet guide vanes, and a fluid cooling system. The fan is adapted to rotate about a central axis to pass air at least in part aftward along the central axis... Rolls royce North American Technologies Inc

09/28/17 / #20170275013

Windmill synchronization in an electric propulsion system

A propulsion system is described that includes an electrical bus, a generator configured to provide electrical power to the electrical bus, a plurality of propulsory configured to provide thrust by simultaneously being driven by the electrical power at the electrical bus, and a controller. The controller is configured to synchronize... Rolls royce North American Technologies Inc

09/28/17 / #20170275766

Engine hot section component and making the same

One embodiment of the present invention is a unique engine hot section component having a coating system operative to reduce heat transfer to the hot section component. Another embodiment is a unique method for making a gas turbine engine hot section component with a coating system. Other embodiments include apparatuses,... Rolls royce North American Technologies Inc

09/14/17 / #20170260869

Gas turbine engine with compliant layer for turbine shroud mounts

A turbine shroud for use in a gas turbine engine includes a carrier, a blade track segment, and a load-distribution system. The carrier is arranged around a central axis of the turbine shroud. The blade track segment is configured to be supported by the carrier. The load-distribution system is positioned... Rolls royce North American Technologies Inc

09/14/17 / #20170260872

Electromagnetic propeller brake

Techniques are described for using an electrical motor to slow down or stop a propulsor during an operation mode where the engine is to be otherwise running but the speed of the propulsor should be low or the propulsor should be stopped.... Rolls royce North American Technologies Inc

09/07/17 / #20170254269

Fuel heat exchanger with leak management

A cooling air system for use in a gas turbine engine includes a microchannel fuel-air heat exchanger. The fuel-air heat exchanger allows heat transfer between a flow of cooling air used to cool components of the engine and a flow of fuel used to drive the engine.... Rolls royce North American Technologies Inc

09/07/17 / #20170254206

Turbine blade with heat shield

An airfoil assembly for use in a gas turbine engine is disclosed. The airfoil assembly includes a root, a tip shroud, and an airfoil located between the root and tip shroud. The airfoil includes a spar and a heat shield arranged around the spar.... Rolls royce North American Technologies Inc

09/07/17 / #20170254207

Turbine blade with heat shield

An airfoil assembly for use in a gas turbine engine is disclosed. The airfoil assembly includes a root, a tip shroud, and an airfoil located between the root and tip shroud. The airfoil includes a spar, a heat shield arranged around the spar, and a plurality of describe rigid load... Rolls royce North American Technologies Inc

08/31/17 / #20170248076

Gas turbine engine with thermoelectric cooling air heat exchanger

A gas turbine engine includes a cooling air system, a coolant system, and a thermoelectric heat exchanger adapted for selective operation in response to operational states of the gas turbine engine.... Rolls royce North American Technologies Inc

08/17/17 / #20170234240

Inlet turbine and transmission for high-mach engines

A high-Mach engine includes a gas turbine core, an inlet assembly, and a transmission. The inlet assembly including an inlet turbine and the transmission configured to couple the inlet turbine and a core turbine of the gas turbine core cooperate to control air moving through the high-Mach engine.... Rolls royce North American Technologies Inc

08/03/17 / #20170218845

Heat exchanger integrated with fuel nozzle

A cooling air system for use in a gas turbine engine includes a fuel-air heat exchanger. The fuel-air heat exchanger allows heat transfer between a flow of cooling air used to cool components of the engine and a flow of fuel used to drive the engine.... Rolls royce North American Technologies Inc

08/03/17 / #20170219253

Thermal management system controlling dynamic and steady state thermal loads

A thermal management system includes a closed dynamic cooling circuit, and a closed first steady-state cooling circuit. Each circuit has its own compressor, heat rejection exchanger, and expansion device. A thermal energy storage (TES) system is configured to receive a dynamic load and thermally couple the dynamic cooling circuit and... Rolls royce North American Technologies Inc

07/27/17 / #20170211395

Turbine endwall and tip cooling for dual wall airfoils

An airfoil may include a spar comprising a passageway inside of the spar for a cooling fluid, a pedestal on an outer surface of the spar, and an inlet configured to direct the cooling fluid from the passageway to the outer surface of the spar. The airfoil may further include... Rolls royce North American Technologies Inc

07/27/17 / #20170214243

Power control system

A power control system for providing power sharing is provided. An energy storage device is configured to supply a first portion of power of an electrical power as a total load power and an engine-driven electrical machine is configured to supply a second portion of power of the total load... Rolls royce North American Technologies Inc

07/27/17 / #20170211416

Forward flowing serpentine vane

A vane adapted for use in a gas turbine engine is disclosed. The vane includes a forward following serpentine cooling path having a plurality of divider walls to direct cooling airflow. The serpentine cooling path optionally includes one or more bifurcating walls in the cooling path to split the airflow.... Rolls royce North American Technologies Inc

07/27/17 / #20170211476

Inlet turbine for high-mach engines

An inlet assembly for a high-mach engine includes a gas turbine core, an inlet turbine, and a core-flow director. When in a closed position, the core-flow director forces air to interact with the inlet turbine before entering the gas turbine core.... Rolls royce North American Technologies Inc

Patent Packs
07/20/17 / #20170204736

Gas turbine engine with health monitoring system

A gas turbine engine includes a turbine having a plurality of vanes, a plurality of blades, a turbine shroud arranged around the vanes and blades, and a turbine case arranged around the turbine shroud. The turbine shroud is sized to block combustion products from passing over the blades without pushing... Rolls royce North American Technologies Inc

07/20/17 / #20170204737

Full hoop blade track with interstage cooling air

A gas turbine engine includes a turbine having a plurality of vanes, a plurality of blades, a turbine shroud arranged around the vanes and blades, and a turbine case arranged around the turbine shroud. The turbine shroud is sized to block combustion products from passing over the blades without pushing... Rolls royce North American Technologies Inc

07/20/17 / #20170204744

Turbine shroud with mounted full hoop blade track

A gas turbine engine includes a turbine having a plurality of vanes, a plurality of blades, a turbine shroud arranged around the vanes and blades, and a turbine case arranged around the turbine shroud. The turbine shroud is sized to block combustion products from passing over the blades without pushing... Rolls royce North American Technologies Inc

07/13/17 / #20170198723

System and alleviating blade flutter

A modified inlet region of a turbofan engine for reducing or eliminating turbofan flutter. The modified inlet region is defined by annular inside surface and a fan. The modified inlet region is upstream and co-axial with the fan. A plurality of fins are disposed circumferentially around the annular inside surface... Rolls royce North American Technologies Inc

06/29/17 / #20170187311

Gas turbine engine and electrical system

One embodiment of the present disclosure is a unique gas turbine engine. Another embodiment of the present disclosure is a unique machine. Other embodiments include apparatuses, systems, devices, hardware, methods, and combinations for gas turbine engines and electrical systems.... Rolls royce North American Technologies Inc

06/22/17 / #20170175572

Seal segment low pressure cooling protection system

A turbine shroud adapted for use in a gas turbine engine includes a plurality of metallic carrier segments and a plurality of blade track segments mounted to corresponding metallic carrier segments. Cooling flow inserts direct cooling air onto the blade track segments to cool the blade track segments when exposed... Rolls royce North American Technologies Inc

06/15/17 / #20170166487

Melt infiltration molten metal control

A method and apparatus for providing molten metal infiltration into a component is provided.... Rolls royce North American Technologies Inc

06/15/17 / #20170170761

Synchronous electric power distribution startup system

A system includes one or more synchronous generators mechanically coupled to an excitation system. The excitation system is configured to output an excitation signal to excite the synchronous generator to produce a voltage and a current at an output of the synchronous generator. During startup of the synchronous generator, the... Rolls royce North American Technologies Inc

06/15/17 / #20170170762

Synchronous electrical power distribution system startup and control

A system may include a prime mover configured to provide mechanical energy to the system by spinning a shaft. The system further includes a synchronous AC generator mechanically coupled to the shaft, and an exciter mechanically coupled to the shaft and configured to output a field current for exciting the... Rolls royce North American Technologies Inc

06/15/17 / #20170170763

Synchronous electrical power distribution system

A system includes one or more synchronous generators and one or more corresponding exciters. The exciter is configured to output a field current for exciting the synchronous generator to produce a voltage and a current at an output of the synchronous generator. The system may also include one or more... Rolls royce North American Technologies Inc

06/15/17 / #20170170765

Synchronous electrical power distribution excitation control system

A system includes an exciter configured to operate with a synchronous generator. The exciter may be mechanically coupled and rotatable with the synchronous generator, or the exciter may be independently rotatable. The exciter is configured to output a field current for exciting the synchronous generator to produce a voltage and... Rolls royce North American Technologies Inc

06/15/17 / #20170170764

Multiple generator synchronous electrical power distribution system

A power system includes a bus, a first controller and one or more second controllers. The first controller is configured to excite a first generator to generate electric power on the bus in response to initiation of rotation of the first generator. The one or more second controllers are configured... Rolls royce North American Technologies Inc

05/25/17 / #20170145845

Impingement tubes for cmc seal segment cooling

A turbine shroud adapted for use in a gas turbine engine includes a plurality of metallic carrier segments and a plurality of blade track segments mounted to corresponding metallic carrier segments. Impingement tubes direct cooling air onto the blade track segments to cool the blade track segments when exposed to... Rolls royce North American Technologies Inc

05/25/17 / #20170145954

Coanda device for a round exhaust nozzle

A gas turbine engine system is disclosed herein. The gas turbine engine system includes an engine core configured to discharge air through an exhaust nozzle along a central axis and a thrust director arranged near the exhaust nozzle and configured to redirect the discharge air by applying flow to the... Rolls royce North American Technologies Inc

05/25/17 / #20170145955

Hybrid exhaust nozzle

An exhaust system or nozzle for use in a gas turbine engine is disclosed herein. The exhaust system is adapted to adjust various streams of pressurized air produced by the gas turbine engine to control operation of the gas turbine engine.... Rolls royce North American Technologies Inc

Patent Packs
05/18/17 / #20170138597

Combustor tile with monolithic inserts

An annular assembly for a gas turbine engine and a method of making the annular assembly. The annular assembly comprises a supporting member comprising metal and including a support hole therethrough, and a liner tile made of ceramic matrix composite material. A plurality of the liner tile form an annular... Rolls royce North American Technologies Inc

05/18/17 / #20170138263

Air inlet duct having a particle separator and an agglomerator for a gas turbine engine

An air-inlet duct includes a particle separator and an agglomerator. The particle separator is configured to receive atmospheric air laden with particles and to direct the particles into a scavenge passageway while allowing the atmospheric air to move into a compressor passageway thereby reducing the number of particles that enter... Rolls royce North American Technologies Inc

05/18/17 / #20170138596

Liner for a combustor of a gas turbine engine

A liner for a combustor includes a support member, an intermediate member, and a liner member. The intermediate member is positioned intermediate the support member and the liner member and has a plurality of protrusions and a plurality of recesses. The support member is coupled to the intermediate member at... Rolls royce North American Technologies Inc

04/27/17 / #20170114800

Nose cone and shaft balancing assembly

A shaft balancing assembly comprising a nose cone and a plurality of balance weights. The nose cone is mounted to a rotatable shaft of a turbine machine via a plurality of elongated fasteners such that a central axis of the nose cone is alighted with the rotatable shaft. The nose... Rolls royce North American Technologies Inc

04/13/17 / #20170101880

Fabric seal and assembly for gas turbine engine

A vane assembly for a gas turbine engine is disclosed in this paper. The vane assembly includes an inner platform, an outer platform, and a ceramic-containing airfoil. The ceramic-containing airfoil extends from the inner platform to the outer platform. A clamp mechanism couples the inner platform and the outer platform... Rolls royce North American Technologies Inc

04/13/17 / #20170101882

Turbine shroud with sealing features

A segmented turbine shroud for positioning radially outside of blades of a turbine rotor includes a carrier, a blade track, and retainers. The blade track is mounted onto the retainers, and the retainers are attached to the carrier to support the blade track radially outside of the blades.... Rolls royce North American Technologies Inc

04/13/17 / #20170101931

All co2 aircraft

An aircraft power and propulsion system includes an air compressor, a heat rejection heat exchanger, a combustor positioned to receive compressed air from the air compressor as a core stream and provide thrust to the aircraft, and a closed-loop s-CO2 system. The closed-loop s-CO2 system includes carbon dioxide as a... Rolls royce North American Technologies Inc

03/30/17 / #20170089263

Turbine engine advanced cooling system

A cooling system for a gas turbine is provided that may include a drive shaft, a shield of a combustor of the gas turbine engine, and a conduit. The drive shaft may be configured to mechanically couple a compressor of the gas turbine engine to a turbine of the gas... Rolls royce North American Technologies Inc

03/23/17 / #20170082066

Propulsion system using supercritical co2 power transfer

A power and propulsion system includes an air compressor, a combustor positioned to receive compressed air from the air compressor as a core stream, and a closed-loop system having carbon dioxide as a working fluid that receives heat from the combustor and rejects heat to a cooling stream. The closed-loop... Rolls royce North American Technologies Inc

03/16/17 / #20170074166

Phase change material cooling system for a vehicle

A system is disclosed one form of which is an aircraft that includes a pod capable of housing a work providing device. The pod can also include a thermal conditioning system and a power generation device that can be powered from the work providing device. The pod can provide thermal... Rolls royce North American Technologies Inc

03/02/17 / #20170058697

Magnetic squeeze film damper system for a gas turbine engine

A magnetic squeeze film damper system comprises a bearing assembly having an outer race with a first outer surface and a first inner surface and a bearing located along the first inner surface. The system further comprises a squeeze film damper housing having a second outer surface and a second... Rolls royce North American Technologies Inc

03/02/17 / #20170058700

Exhaust mixer with outer lobe constraint band

A gas turbine engine exhaust component is disclosed herein. The gas turbine engine exhaust component includes an annular mixer that extends around a central axis and is formed to include inner lobes that define radially-outwardly opening channels and outer lobes that define radially-inwardly opening channels. A constraint band is added... Rolls royce North American Technologies Inc

02/23/17 / #20170051917

Case and liner arrangement for a combustor

A combustor adapted for use in a gas turbine engine is disclosed. The combustor includes a metallic case forming a cavity and a ceramic liner arranged in the cavity of the metallic case. The ceramic liner defines a combustion chamber in which fuel is burned during operation of a gas... Rolls royce North American Technologies Inc

02/16/17 / #20170044984

Heat exchanger for a gas turbine engine propulsion system

A propulsion system including a gas turbine engine is disclosed herein. The propulsion system further includes a heat exchanger arranged outside the gas turbine engine and adapted to cool fluid from the gas turbine engine.... Rolls royce North American Technologies Inc

02/09/17 / #20170037740

Turbine shroud segment with side perimeter seal

A turbine shroud segment of a turbine shroud for use in a turbine of a gas turbine engine is disclosed herein. The turbine shroud segment includes a carrier segment and a blade track segment. The carrier segment includes metallic materials. The blade track segment includes ceramic matrix composite materials. A... Rolls royce North American Technologies Inc

01/26/17 / #20170021783

Vehicle and system for supplying electrical power to a vehicle electrical load

A system of a vehicle may include an electrical load, a generator, and first and second conduits. The electrical load of the vehicle may include a high energy device that utilizes above 270 volts during operations of the vehicle. The generator may be coupled to an engine of the vehicle... Rolls royce North American Technologies Inc

01/26/17 / #20170022840

Seal segment for a gas turbine engine

A seal segment for a gas turbine engine has a radially outer wall with a first length, a radially inner wall with a second length, and a rib member which extends radially between the outer wall and the inner wall and along the first and second lengths.... Rolls royce North American Technologies Inc

01/26/17 / #20170022844

Sectioned gas turbine engine driven by sco2 cycle

An apparatus, system, and method for a gas turbine engine may include a sectioned heat exchanger. A heat exchanger may include an inlet manifold configured to receive a working fluid. A plurality of circuits including at least first and second circuits configured to transfer heat with respect to the working... Rolls royce North American Technologies Inc

01/26/17 / #20170022907

Shaft failure detection using passive control methods

A method for use in a turbine control system includes controlling fuel supply to a gas turbine engine at least in part using a fuel supply limit determined as a first function of a rotational speed of a shaft of the gas turbine engine. The method also includes obtaining a... Rolls royce North American Technologies Inc

01/05/17 / #20170002674

Turbine shroud with clamped flange attachment

A turbine engine including a turbine shroud for positioning radially outside of blades of the turbine rotor. The turbine shroud includes a carrier, a retention assembly, and a blade track. The blade track is clamped by the retention assembly, and the retention assembly is supported by the carrier.... Rolls royce North American Technologies Inc








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