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公开(公告)号：US20240286960A1
公开(公告)日：2024-08-29
申请号：US18440043
申请日：2024-02-13
Applicant: Rolls-Royce plc
Inventor： Thomas M. MULCAHY
IPC: C04B35/486 , C04B35/482 , C04B35/626
CPC classification number: C04B35/486 , C04B35/482 , C04B35/62665 , C04B2235/3225 , C04B2235/3227 , C04B2235/3246 , C04B2235/72
Abstract: A coating system includes a bond layer including CoNiCrAlY; a thermal barrier layer at least partially disposed on the bond layer and including yttria stabilised zirconia; a mesh layer connecting the thermal barrier layer to the bond layer and including CoNiCrAlY; and an abradable layer disposed on the thermal barrier layer and including magnesium spinel. The mesh layer includes a plurality of cells connected to each other and is at least partially embedded in the thermal barrier layer. Each cell defines a cell opening therethrough and the cell opening of each of the plurality of cells at least partially receives the thermal barrier layer therein. The abradable layer and the thermal barrier layer are at least partially removable from the mesh layer and the bond layer without damaging them.
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公开(公告)号：US20240283047A1
公开(公告)日：2024-08-22
申请号：US18442872
申请日：2024-02-15
Applicant: ROLLS-ROYCE PLC
Inventor： Matthew DOBSON
IPC: H01M10/63 , H01M10/613 , H01M10/625 , H01M10/6568
CPC classification number: H01M10/63 , H01M10/613 , H01M10/625 , H01M10/6568 , H01M2220/20
Abstract: Battery packs, which may be used in vehicles, include: a plurality of battery cells; one or more flow control devices; and sensing and control circuitry configured to: measure one or more parameters indicative of an onset of thermal runaway of one or more of the plurality of cells; determine, based on a change in one or more of the measured parameters, that one or more of the plurality of battery cells has begun or is at risk of beginning thermal runaway; and activate one or more of the flow control devices in response to the determination. Each of the one more flow control devices is configured to, when activated, direct a flow of fluid past one or more of the plurality of cells to cool the cells and/or carry media vented by one or more of the cells following a thermal runaway event away from the one or more cells.
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公开(公告)号：US12064928B2
公开(公告)日：2024-08-20
申请号：US17618043
申请日：2020-06-04
Applicant: ROLLS-ROYCE PLC
Inventor： Steven M. Hunt
CPC classification number: B29C70/384 , B29C70/342 , B29C70/541
Abstract: There is disclosed a lay-up apparatus for laying up fibre reinforcement material, the lay-up apparatus comprising a lay-up tool defining a lay-up surface, a placement head having a flexible membrane which is conformable to the layup surface, and a membrane vacuum port extending through the membrane and configured to hold a ply against the membrane when suction is applied through the membrane vacuum port. The placement head is configured to cooperate with the lay-up tool so that when a ply is held against the membrane, an airtight chamber is formed between the membrane and the lay-up tool. The lay-up tool comprises a consolidation vacuum port configured to permit evacuation of the airtight chamber to cause the membrane and ply to move towards the lay-up surface.
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公开(公告)号：US12060838B2
公开(公告)日：2024-08-13
申请号：US18099490
申请日：2023-01-20
Applicant: ROLLS-ROYCE PLC
Inventor： Peter Swann , David M Beaven , Craig W Bemment , Alastair G Hobday , Benjamin J Keeler , Christopher P Madden , Martin K Yates
IPC: G01N21/33 , B64D27/10 , B64D47/00 , F02C9/00 , G01N21/3577 , G01N21/64 , G01N33/28 , B64D37/00 , G01N21/35
CPC classification number: F02C9/00 , B64D27/10 , B64D47/00 , G01N21/33 , G01N21/3577 , G01N21/64 , G01N33/287 , B64D37/00 , G01N2021/3595
Abstract: A method of generating a maintenance schedule for an aircraft including one or more gas turbine engines powered by an aviation fuel. The method includes: determining one or more fuel characteristics of the fuel; and generating a maintenance schedule according to the one or more fuel characteristics. Also disclosed is a method of maintaining an aircraft, a maintenance schedule generation system and an aircraft.
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公开(公告)号：US12044177B2
公开(公告)日：2024-07-23
申请号：US18337636
申请日：2023-06-20
Applicant: ROLLS-ROYCE plc
Inventor： Craig W Bemment , Alastair G Hobday , Benjamin J Keeler , Christopher P Madden , Andrea Minelli , Andrew T Smith , Peter Swann , Martin K Yates
CPC classification number: F02C7/224 , F02C9/28 , F23R3/28 , F05D2260/221
Abstract: A method of operating a gas turbine engine is disclosed, the gas turbine engine comprising a combustor arranged to combust a fuel; and a fuel management system arranged to provide the fuel to the combustor. The fuel management system comprises two fuel-oil heat exchangers through which oil and the fuel flow, the heat exchangers arranged to transfer heat to the fuel and comprising a primary fuel-oil heat exchanger and a secondary fuel-oil heat exchanger; and a fuel pump arranged to deliver the fuel to the combustor, wherein the fuel pump is located between the two heat exchangers. The method comprises controlling the fuel management system so as to transfer between 200 and 600 kJ/m3 of heat to the fuel from the oil in the primary fuel-oil heat exchanger at cruise conditions.
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Patent Agency Ranking
公开(公告)号：US12037942B2
公开(公告)日：2024-07-16
申请号：US17731673
申请日：2022-04-28
Applicant: ROLLS-ROYCE plc
Inventor： Roderick M Townes , Michael J Whittle , Pascal Dunning
CPC classification number: F02C7/08 , F01D5/282 , F01D5/284 , F02C7/36 , F02C9/16 , F02K3/06 , F05D2220/32 , F05D2220/323 , F05D2220/36 , F05D2260/40311 , F05D2300/6033
Abstract: A highly efficient gas turbine engine is a system wherein the fan of the gas turbine engine is driven from a turbine via a gearbox, such that the fan has a lower rotational speed than the driving turbine, thereby providing efficiency gains. The efficient fan system is mated to a core that has low cooling flow requirements and/or high temperature capability, and which may have particularly low mass for a given power.
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公开(公告)号：US20240237283A9
公开(公告)日：2024-07-11
申请号：US18373861
申请日：2023-09-27
Applicant: ROLLS-ROYCE PLC
Inventor： Chandana J. GAJANAYAKE , Shuai WANG , Pranshu KHARBANDA
IPC: H05K7/20
CPC classification number: H05K7/20272 , H05K7/20254
Abstract: A thermal management system for cooling at least one electronic component, the thermal management system including: a heat exchanger connectable to at least one electronic component, the heat exchanger configured to dissipate heat generated by the at least one electronic component; a plurality of cooling channels each connected to a respective pump and the heat exchanger, wherein: each cooling channel is configured to carry fluid between the heat exchanger and the respective pump, and each pump is configured to pump fluid along the respective cooling channel such that fluid carried by each cooling channel flows through the heat exchanger.
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公开(公告)号：US20240228055A9
公开(公告)日：2024-07-11
申请号：US18483106
申请日：2023-10-09
Applicant: ROLLS-ROYCE plc
Inventor： Marko BACIC , John COULL
Abstract: An aircraft propulsion system fuel system comprises a fuel line configured to receive liquid hydrogen fuel from a fuel tank, a vaporizer configured to vaporize liquid hydrogen fuel from the fuel line to generate a supercritical or gaseous fuel, a main fuel pump configured to receive and to pump the gaseous or supercritical fuel from the vaporizer during operation of the propulsion system, and a heater provided downstream in fuel flow to the main fuel pump, and configured to raise the temperature of the gaseous or supercritical fuel to a propulsion system delivery temperature.
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公开(公告)号：US12031493B2
公开(公告)日：2024-07-09
申请号：US18162949
申请日：2023-02-01
Applicant: ROLLS-ROYCE plc
Inventor： Peter Swann
CPC classification number: F02C9/40 , F02C7/22 , F05D2220/323 , F05D2270/053 , F05D2270/08 , F05D2270/303
Abstract: A system has first and second fuel stores for first and second fuels, an engine, a fuel distribution system, first and second flow rates of the fuel contributing to a total flow rate of fuel; and a controller for controlling the relative fractions of the total flow rate of fuel to the engine according to the required power output of the engine such that the relative fraction of the total flow rate of fuel to the engine represented by the second flow rate increases with increasing required power output of the engine. The fuels are selected such that using only the second fuel results in a lower engine temperature than using only the first fuel, for the same mechanical power and/or the second fuel has a lower specific energy than the first and/or the second fuel produces more water during combustion than the first fuel per unit of fuel energy.
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公开(公告)号：US20240217353A1
公开(公告)日：2024-07-04
申请号：US18536570
申请日：2023-12-12
Applicant: ROLLS-ROYCE plc
Inventor： Sivakumar NADARAJAN , Shanjiao JIANG , Thiha KYAW , Amit GUPTA
CPC classification number: B60L53/14 , H02J7/00032 , H02J7/0047 , H02J13/00022 , B60L2200/10
Abstract: A data logging and transmission device is provided for an electric aircraft having a charging port for on-ground charging of an energy storage system of an electric propulsion system of the aircraft. The device includes: a control unit, data storage unit, data transmitter, and sensor configured to detect connection of charging port of the electric aircraft to ground-side charger and then issue a trigger signal to the control unit. The control unit is configured wherein a state of flight of the electric aircraft, the control unit collects inflight data from the electric aircraft and saves the inflight data to the data storage unit. The control unit is also configured such that in a state of on-ground charging of the electric aircraft, the control unit, on receipt of the trigger signal, commands the data transmitter to transmit the inflight data saved on the data storage unit to a remote receiver.
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