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公开(公告)号：US11199364B2
公开(公告)日：2021-12-14
申请号：US16716873
申请日：2019-12-17
Applicant: ROLLS-ROYCE plc
Inventor： Chloe J. Palmer
Abstract: The present disclosure concerns a heat exchanger, which may for example be utilised in a gas turbine engine or in other applications. Example embodiments include a heat exchanger comprising: an external surface for exchanging heat with an external fluid flow passing over the external surface; a first fluid passage extending through the heat exchanger from a first fluid inlet to a first fluid outlet, a first portion of the first fluid passage extending along the heat exchanger adjacent to the external surface for a first cooling fluid passing through the first fluid passage to exchange heat with the external fluid flow; and a second fluid passage extending through the heat exchanger from a second fluid inlet to a second fluid outlet located at the external surface for a second cooling fluid to pass from the second fluid inlet into the external fluid flow.
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公开(公告)号：US11527885B2
公开(公告)日：2022-12-13
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：US10718211B2
公开(公告)日：2020-07-21
申请号：US16139246
申请日：2018-09-24
Applicant: ROLLS-ROYCE plc
Inventor： Chloe J. Palmer , Jia Qing Alastair Milton Sim , Ahmed My Razak
IPC: F01B17/02 , F01K25/06 , F02M31/00 , F02M25/00 , F02M23/00 , F01L1/38 , F02B1/10 , F02B1/14 , F02B75/02
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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公开(公告)号：US11927378B2
公开(公告)日：2024-03-12
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 , F25B9/008 , F25B9/06 , G01N25/12 , F25B2309/061 , F25B2600/2515
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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Patent Agency Ranking
公开(公告)号：US11189398B2
公开(公告)日：2021-11-30
申请号：US16734491
申请日：2020-01-06
Applicant: ROLLS-ROYCE plc
Inventor： Chloe J. Palmer
Abstract: A superconducting electrical power distribution system has a superconducting bus bar and one or more bus bar thermal conductor lines extending in thermal proximity along the bus bar to receive heat from the bus bar over the length of the bus bar. The system further has superconducting cables electrically connected to the bus bar at respective electrical joints distributed along the bus bar. The system further has a cryogenic cooling sub-system. The system further has a network comprising first and second thermal conductor lines, each line comprising a cold end which is cooled by the cryogenic cooling sub-system, and an opposite hot end, whereby heat received by each line is normally conducted along the line in a direction from its hot end to its cold end.
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公开(公告)号：US10683754B2
公开(公告)日：2020-06-16
申请号：US16139265
申请日：2018-09-24
Applicant: ROLLS-ROYCE plc
Inventor： Chloe J. Palmer , Jia Qing Alastair Milton Sim , Ahmed My Razak
IPC: F01B17/02 , F02M23/00 , F02M25/00 , F02M31/00 , F01K25/06 , F01L1/38 , F02B1/10 , F02B1/14 , F02B75/02
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: receiving at least a first signal; determining a quantity of liquid air to be injected using at least the received first signal; controlling injection of the determined quantity of liquid air into the first end of the cavity at a first time when the piston is closer to the first end than the second end.
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公开(公告)号：US11760502B2
公开(公告)日：2023-09-19
申请号：US17823732
申请日：2022-08-31
Applicant: ROLLS-ROYCE plc
Inventor： Chloe J. Palmer
CPC classification number: B64D37/32 , F02C3/22 , F02C7/222 , F02C7/224 , F02C7/232 , F02C9/28 , F02C9/40 , F05D2220/323 , F05D2240/36 , F05D2260/60 , F05D2270/301
Abstract: A fuel delivery system for a gas turbine engine comprises a cryogenic fuel tank, a first fuel line for connection to the cryogenic fuel tank, a fuel pump connected to receive fuel via the first fuel line, a plurality of fuel lines connecting the fuel pump to a combustor of the gas turbine engine, a controller configured to operate the fuel delivery system, a purge gas tank connected to the first fuel line and configured to store a purge gas for purging the plurality of fuel lines and a fuel gas tank connected to the first fuel line and configured to store a fuel gas for flushing purge gas from the plurality of fuel lines.
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公开(公告)号：US11680486B2
公开(公告)日：2023-06-20
申请号：US16779712
申请日：2020-02-03
Applicant: ROLLS-ROYCE plc
Inventor： Chloe J. Palmer , Vladimir A. Shirokov
CPC classification number: F01D1/26 , F01D15/10 , F01D15/12 , F02K3/072 , F04D19/024 , H02K7/1823 , F05D2250/44 , F05D2260/40311
Abstract: Turbomachinery comprising first and second sets of rotors configured to operate on a working fluid. The machinery further comprises first and second sets of electric machines coupled to the respective first and second rotors, and a coupling arrangement arranged to couple adjacent rotors of the first and second rotor sets to provide for fixed ratio, contra-rotation of the first and second rotor sets.
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公开(公告)号：US11309104B2
公开(公告)日：2022-04-19
申请号：US16734480
申请日：2020-01-06
Applicant: ROLLS-ROYCE plc
Inventor： Chloe J. Palmer
Abstract: A superconducting electrical power distribution network has a superconducting bus bar and superconducting cables electrically connected to the bus bar at respective joints distributed along the bus bar. The network further has a first coolant system for providing first cryogenic fluid and first circuits for circulating the first cryogenic fluid provided by the first coolant system. The first circuits comprise: a bus bar flow path which extends along and thereby cools the bus bar, cable flow paths which respectively extend along and thereby cool the cables, cooling junctions where the bus bar and cable flow paths meet at the electrical connection joints, inflow lines which send the first cryogenic fluid from the first coolant system to the flow paths, and outflow lines which remove the first cryogenic fluid from the flow paths.
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