公开(公告)号：EP4417797A1

公开(公告)日：2024-08-21

申请号：EP23193724.4

申请日：2023-08-28

申请人： Collins Engine Nozzles, Inc.

发明人： WILLIAMS, Brandon ,  RYON, Jason A ,  SEEI, Roger A ,  FERRAROTTI, Michael ,  LOKHANDWALLA, Murtuza ,  HAUGSJAAHABINK, Todd ,  ROURKE, Rusell P Jr. ,  KOKAS, Jay W ,  VERSAILLES, Richard E

IPC分类号： F02C7/22 ,  F02C7/228 ,  F02C7/232 ,  F02C9/26 ,  F23R3/34 ,  F02M45/08 ,  F02M47/02 ,  F02M63/00 ,  F02C7/224 ,  F23D11/26

CPC分类号： F02C7/228 ,  F02C7/222 ,  F02C7/232 ,  F02C9/263 ,  F02C7/224 ,  F05D2270/3120130101 ,  F05D2270/4220130101 ,  F05D2260/2020130101 ,  F05D2260/60620130101 ,  F23R3/346 ,  F23D11/26

摘要： A system includes an injector (102) including a scheduling valve assembly (104) and a nozzle (106) in fluid communication with the scheduling valve assembly. The injector includes two fluid circuits, a primary circuit (110) and a secondary circuit (112), between the inlet of the injector and two respective outlets for staged flow output. A cooling circuit (113) is in fluid communication with the inlet of the injector. The cooling circuit is in thermal communication with the secondary circuit for selectively cooling the secondary circuit at low flow and no flow conditions of the secondary circuit. A separate valve (114, 214) is connected in fluid communication in the cooling circuit for controlling flow through the cooling circuit. The separate valve is configured for active control regardless of pressure at the inlet of the injector. The scheduling valve assembly is configured for passive control of the primary and secondary circuits based on pressure at the inlet of the injector.

公开(公告)号：EP4151529B1

公开(公告)日：2024-08-07

申请号：EP22190981.5

申请日：2022-08-18

IPC分类号： B64D13/06 ,  B64D37/30 ,  B64D37/34

CPC分类号： B64D2013/061820130101 ,  B64D13/06 ,  B64D37/30 ,  B64D37/34 ,  F02C7/224 ,  F02C3/22 ,  F02C6/08 ,  F05D2260/21320130101 ,  Y02T50/50

公开(公告)号：EP4124738B1

公开(公告)日：2024-08-07

申请号：EP22179010.8

申请日：2022-06-14

IPC分类号： F02C7/224 ,  F02K1/78 ,  F28D7/08

CPC分类号： F02C7/224 ,  F02K1/78 ,  F05D2260/21320130101 ,  F28D1/06 ,  Y02T50/60

公开(公告)号：EP4390096A1

公开(公告)日：2024-06-26

申请号：EP23216526.6

申请日：2023-12-14

申请人： Rolls-Royce plc

发明人： Madden, Christopher ,  Bemment, Craig ,  Ferra, Paul ,  Keeler, Benjamin ,  Minelli, Andrea ,  Swann, Peter ,  Yates, Martin

IPC分类号： F02C7/14 ,  F02C7/224 ,  F02C9/20

CPC分类号： F02C7/224 ,  F02C7/14 ,  F02C9/20 ,  F05D2260/21320130101 ,  F05D2270/30320130101

摘要： There is provided a method (300) of operating a gas turbine engine (10) having a lean burn staged combustion system having a combustor (16) in which fuel is combusted. The gas turbine engine (10) comprises a fuel-oil heat exchanger (114) arranged to transfer heat between oil and fuel that is provided to the combustor (16). The method (300) comprises transferring heat (301) from the oil to the fuel before the fuel enters the combustor (16) so as to raise the fuel temperature to an average of at least 135°C on entry to the combustor (16) at cruise conditions. Also provided is a gas turbine for an aircraft.

公开(公告)号：EP4390095A1

公开(公告)日：2024-06-26

申请号：EP23216524.1

申请日：2023-12-14

申请人： Rolls-Royce plc

发明人： Bemment, Craig ,  Keeler, Benjamin ,  McNally, Kevin ,  Minelli, Andrea

IPC分类号： F02C7/14 ,  F02C7/224 ,  F02C9/20

CPC分类号： F02C7/224 ,  F02C7/14 ,  F05D2260/21320130101 ,  F02C9/20

摘要： A method (11000) of operating a gas turbine engine (10) is disclosed, the gas turbine engine (10) comprising a fuel delivery system (1000, 6000) arranged to provide fuel; a combustor (16) arranged to combust at least a proportion of the fuel; a primary fuel-oil heat exchanger (1004) arranged to have up to 100% of the fuel provided by the fuel delivery system (1000, 6000) flow therethrough; and a secondary fuel-oil heat exchanger (1006) arranged to have a proportion of the fuel from the primary fuel-oil heat exchanger (1004) flow therethrough. Fuel is arranged to flow from the primary fuel-oil heat exchanger (1004) to the secondary fuel-oil heat exchanger (1006) and oil is arranged to flow from the secondary fuel-oil heat exchanger to the primary fuel-oil heat exchanger. The method (11000) comprises transferring (11200) 200 - 600 kJ/m3 of heat to the fuel from the oil in the primary fuel-oil heat exchanger (1004) at cruise conditions.

公开(公告)号：EP4381182A1

公开(公告)日：2024-06-12

申请号：EP22743499.0

申请日：2022-07-18

申请人： SAFRAN

发明人： LAMBERT, Pierre-Alain Marie Cyrille

IPC分类号： F02C3/22 ,  F02C9/40 ,  F02C7/224

CPC分类号： F02C3/22 ,  F02C9/40 ,  F05D2220/5020130101 ,  F02C7/224

公开(公告)号：EP4361420A1

公开(公告)日：2024-05-01

申请号：EP23199577.0

申请日：2023-09-26

申请人： Rolls-Royce plc

发明人： Grech, Nicholas ,  Palmer, Chloe ,  Tacconi, Jacopo

IPC分类号： F02C3/22 ,  F02C7/224

CPC分类号： F02C3/22 ,  F02C7/224 ,  F05D2260/21320130101

摘要： A combined gas turbine engine and hydrogen fuel cell system comprises a hydrogen fuelled gas turbine engine (203), a cryogenic liquid hydrogen fuel tank (104), a first fuel offtake (220) configured and arranged to divert a portion of hydrogen fuel from a main fuel conduit (217), a burner (222) configured and arranged to burn the portion of hydrogen fuel diverted from the main fuel conduit (217), a heat exchanger (224) configured and arranged to transfer heat from exhaust gasses produced by the burner (222) to hydrogen fuel in the main fuel conduit (217), a second fuel offtake (262) arranged to divert a portion of hydrogen fuel from the main fuel conduit (217) downstream of the heat exchanger (224), and a hydrogen fuel cell (260) configured and arranged to produce electric power using hydrogen fuel diverted from the second fuel offtake (262).

公开(公告)号：EP4361419A1

公开(公告)日：2024-05-01

申请号：EP23199576.2

申请日：2023-09-26

申请人： Rolls-Royce plc

发明人： Palmer, Chloe J ,  Tacconi, Jacopo ,  Grech, Nicholas

IPC分类号： F02C3/22 ,  F02C7/224

CPC分类号： F02C3/22 ,  F02C7/224 ,  F05D2260/21320130101

摘要： A gas turbine engine fuel system comprises a fuel offtake (220) configured to divert a portion of hydrogen fuel from a main fuel conduit (217), a burner (222) configured to burn the portion of hydrogen fuel diverted from the main fuel conduit (217), a heat exchanger (224) configured to transfer heat from exhaust gasses produced by the burner (222) to hydrogen fuel in the main fuel conduit (217) and a power recovery device (234) configured to extract power from exhaust gasses of the burner downstream of the heat-exchanger (224).

公开(公告)号：EP3246545B1

公开(公告)日：2018-12-05

申请号：EP17169591.9

申请日：2017-05-04

申请人： Rolls-Royce Corporation ,  Purdue Research Foundation (Prf)

发明人： Sweeney, Patrick C. ,  Heister, Stephen Douglas ,  Hunt, Steven Alan ,  Scalo, Carlo ,  Migliorino, Marto Tindaro

IPC分类号： F02C7/18 ,  F02C7/224

CPC分类号： F02C7/185 ,  F02C7/224 ,  F05D2260/213 ,  Y02T50/676

摘要： A gas turbine engine includes devices, systems, and methods for design and operation of stabilizing heat exchangers for gas turbine engines in consideration of near supercritical fuel flow conditions.

公开(公告)号：EP2580447B1

公开(公告)日：2018-11-14

申请号：EP11723816.2

申请日：2011-05-24

申请人： Siemens Energy, Inc.

发明人： MYERS, Gerald A. ,  REICHOW, Jason M.

IPC分类号： F02C7/18 ,  F02C7/224

CPC分类号： F02C7/185 ,  F02C7/18 ,  F02C7/224 ,  F05D2240/12 ,  F05D2260/205 ,  F05D2260/213 ,  F05D2260/22141 ,  F05D2270/303

摘要： A cooling system for turbine engines for controlling cooling of rotor cooling air and heating of fuel gas is disclosed. The cooling system may be formed from a housing formed from a main plenum, a rotor air cooler positioned at least partially in the main plenum and a fuel gas heater positioned at least partially in the main plenum downstream from rotor air cooler. The cooling system may include a by-pass plenum for returning used cooling air back to a region upstream of the rotor air cooler. An exhaust fluid control device may control fluid flow out of the first exhaust opening at the second end of the main plenum, and a by-pass fluid control device may control fluid flow into the by-pass inlet opening of the by-pass plenum. The control devices and a fan may control circulation of cooling fluids through the main plenum.