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公开(公告)号：US20230175750A1
公开(公告)日：2023-06-08
申请号：US18057270
申请日：2022-11-21
Applicant: ROLLS-ROYCE plc
Inventor： Chloe J. PALMER , Ian M. BUNCE
CPC classification number: F25B49/02 , G01N25/12 , F25B9/008 , F25B9/06 , F25B2600/2515 , F25B2309/061
Abstract: A sensor assembly is shown for sensing a crossing of the critical point in a system utilising a working fluid in a transcritical cycle passing through the critical point. A first broadband acoustic sensor is located upstream of a component and a second broadband acoustic sensor is located downstream of the component, each of which are arranged to detect high-frequency and low-frequency sounds caused by the crossing of the critical point. A flow regulation device regulates flow of working fluid through the component in response to the output of one or both of the first broadband acoustic sensor and the second broadband acoustic sensor, thereby adjusting the location of the crossing of the critical point.
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公开(公告)号：US20190312428A1
公开(公告)日：2019-10-10
申请号：US16299765
申请日：2019-03-12
Applicant: ROLLS-ROYCE plc
Inventor： Chloe J. PALMER , Stephen M. HUSBAND
Abstract: A superconducting fault current limiter (10) is shown. It comprises a cryostatic cooling system (20) for containing a cooling medium (26), a superconducting wire (30) immersed in the cooling medium (26) and configured to carry a current, the superconducting wire (30) becoming non-superconducting above a critical current density, and a plurality of heat dissipation elements spaced along and projecting from the superconducting wire (30), wherein the heat dissipation elements have an electrically insulating coating, and whereby the heat dissipation elements transfer heat from the superconducting wire (30) into the cooling medium (26).
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公开(公告)号：US20240229711A9
公开(公告)日：2024-07-11
申请号：US18379728
申请日：2023-10-13
Applicant: ROLLS-ROYCE PLC
Inventor： Nicholas GRECH , Chloe J. PALMER , Jacopo TACCONI
IPC: F02C6/04 , F02C7/224 , F02C9/40 , H01M8/04111
CPC classification number: F02C6/04 , F02C7/224 , F02C9/40 , H01M8/04111 , F05D2220/323 , F05D2220/50 , H01M2250/20 , H01M2250/407
Abstract: A combined gas turbine engine and hydrogen fuel cell system includes a hydrogen fuelled gas turbine engine, a cryogenic liquid hydrogen fuel tank, a first fuel offtake configured and arranged to divert a portion of hydrogen fuel from a main fuel conduit, a burner configured and arranged to burn the portion of hydrogen fuel diverted from the main fuel conduit, a heat exchanger configured and arranged to transfer heat from exhaust gasses produced by the burner to hydrogen fuel in the main fuel conduit, a second fuel offtake arranged to divert a portion of hydrogen fuel from the main fuel conduit downstream of the heat exchanger, and a hydrogen fuel cell configured and arranged to produce electric power using hydrogen fuel diverted from the second fuel offtake.
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公开(公告)号：US20230079172A1
公开(公告)日：2023-03-16
申请号：US17823738
申请日：2022-08-31
Applicant: ROLLS-ROYCE plc
Inventor： Chloe J. PALMER
Abstract: A centrifugal compressor is shown, comprising: an impeller; a rotatably mounted diffuser surrounding the impeller; and a driving arrangement configured to drive the impeller and diffuser to rotate in opposing directions.
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公开(公告)号：US20220178307A1
公开(公告)日：2022-06-09
申请号：US17476129
申请日：2021-09-15
Applicant: ROLLS-ROYCE PLC
Inventor： Chloe J. PALMER , Guy D. SNOWSILL , Jonathan E. HOLT
Abstract: A fuel delivery system (201) is shown for delivering the hydrogen fuel from a cryogenic storage system to a fuel injection system in a gas turbine engine. The fuel delivery system includes a pump (301), a metering device (302), and a fuel heating system (303,304) for heating the hydrogen fuel to an injection temperature for the fuel injection system.
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Patent Agency Ranking
公开(公告)号：US20220099020A1
公开(公告)日：2022-03-31
申请号：US17487575
申请日：2021-09-28
Applicant: ROLLS-ROYCE plc
Inventor： Chloe J. PALMER
Abstract: A hydrogen fuel vaporiser (218) is shown for vaporising cryogenically-stored hydrogen fuel prior to injection into a gas turbine engine. The vaporiser (218) comprises a fuel offtake (301) configured and arranged to divert a portion of hydrogen fuel from a main fuel conduit (217), a burner (303) configured and arranged to burn the portion of hydrogen fuel diverted from the main fuel conduit (217), and a heat exchanger configured and arranged to transfer heat produced by the burner to hydrogen fuel in the main fuel conduit (217).
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公开(公告)号：US20230092080A1
公开(公告)日：2023-03-23
申请号：US17822467
申请日：2022-08-26
Applicant: ROLLS-ROYCE plc
Inventor： Chloe J. PALMER , Benjamin J. EASTMENT
Abstract: A fluid pump is shown, comprising: a chamber comprising an inlet and an outlet, the outlet comprising a non-return valve, the chamber having a cavity comprising a cylinder; a piston slidably disposed within the cylinder; and a Tesla valve in fluid communication with the inlet, wherein the fluid pump is configured to pump fluid from the inlet to the outlet by reciprocation of the piston within the cylinder.
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公开(公告)号：US20220228713A1
公开(公告)日：2022-07-21
申请号：US17556211
申请日：2021-12-20
Applicant: ROLLS-ROYCE plc
Inventor： Philip D. BUTLER , Eric W. DEAN , Chloe J. PALMER
IPC: F17C1/16 , F17C13/02 , H01M8/04089 , H01M8/04746 , H01M8/04111
Abstract: A hydrogen storage tank has a composite laminate wall, a hydrogen-porous layer in contact with the outer surface of the composite laminate wall and a hydrogen-non-porous layer in contact with the outer surface of the hydrogen-porous layer, the hydrogen-non-porous layer having an output port for venting hydrogen which passes through the composite laminate wall and the hydrogen-porous layer from the interior of the tank. The tank allows hydrogen which leaks through the composite laminate wall to be collected and re-used. The invention also allows for the rate of hydrogen leakage from the tank to be measured, providing a measure of the structural integrity of the tank.
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公开(公告)号：US20190214884A1
公开(公告)日：2019-07-11
申请号：US16217243
申请日：2018-12-12
Applicant: ROLLS-ROYCE PLC
Inventor： Chloe J. PALMER
CPC classification number: H02K7/116 , F01D15/10 , F02C7/32 , F02C7/36 , F02K3/06 , F05D2220/768 , F05D2260/40311 , F16H1/28 , F16H57/08 , F16H2057/02034 , H02K7/1823 , H02K21/24
Abstract: An epicyclic geartrain comprises a sun gear, a plurality of planet gears, and a ring gear. The plurality of planet gears is supported by a planet torque ring. The planet gears meshingly surround the sun gear, and the ring gear meshingly surrounds the planet gears. At least one of the sun gear, the plurality of planet gears, and the ring gear, is provided with a plurality of permanent magnet portions. Each of the plurality of magnet portions is arranged as a circumferential array. The planet torque ring is provided with at least one stator coil array, with the or each stator coil array being positioned in axial alignment with the or each corresponding plurality of permanent magnet portions as an axial flux electric motor generator element.
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公开(公告)号：US20190120052A1
公开(公告)日：2019-04-25
申请号：US16139246
申请日：2018-09-24
Applicant: ROLLS-ROYCE plc
Inventor： Chloe J. PALMER , Jia Qing Alastair Miton SIM , Ahmed MY RAZAK
CPC classification number: F01B17/025 , F01K25/06 , F01L1/38 , F02B1/10 , F02B1/14 , F02B75/02 , F02B2075/028 , F02M23/00 , F02M25/00 , F02M31/00 , F02M2023/008 , F02M2700/43
Abstract: A method of controlling a reciprocating internal combustion engine comprising: a cylinder defining a cavity having a first end and a second end; and a piston moveable within the cavity of the cylinder between the first end and the second end, the method comprising: controlling injection of a quantity of liquid air, without fuel, into the first end of the cavity at a first time when the piston is closer to the first end than the second end to cause the piston to perform a first power stroke; and controlling injection of fuel into the first end of the cavity at a second time when the piston is closer to the first end than the second end to cause the piston to perform a second power stroke.
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