公开(公告)号：US20230383694A1

公开(公告)日：2023-11-30

申请号：US18310747

申请日：2023-05-02

Applicant: ROLLS-ROYCE plc

Inventor： Chloe Jo PALMER

IPC: F02C3/22 ,  F02C7/224 ,  F02C3/06 ,  B64D15/04 ,  B64D37/30 ,  B64D37/34 ,  B64D13/08

CPC classification number: F02C3/22 ,  F02C7/224 ,  F02C3/06 ,  B64D15/04 ,  B64D37/30 ,  B64D37/34 ,  B64D13/08

Abstract: A hydrogen-fuelled gas turbine engine has a fuel input path from a fuel input of the engine to a combustor, the engine further comprising a heat-exchanger located in the fuel input path and a fuel turbine located in the fuel input path between the heat-exchanger and the combustor. The heat-exchanger is arranged to receive waste heat from the engine core in order to heat hydrogen fuel introduced at the fuel input prior to input thereof to the combustor. The engine further comprises an air compressor arranged to be driven by the fuel turbine. The engine provides for most of the waste heat of combustion to be recovered and used without the need for heavy electrical or mechanical apparatus and is therefore particularly advantageous in aeronautical applications.

公开(公告)号：US20230391467A1

公开(公告)日：2023-12-07

申请号：US18184804

申请日：2023-03-16

Applicant: ROLLS-ROYCE plc

Inventor： Chloe Jo PALMER ,  Jacopo TACCONI

IPC: B64D37/30 ,  B64D27/10 ,  F02C7/18 ,  H01M8/04111 ,  H01M8/04007 ,  H01M8/04082

CPC classification number: B64D37/30 ,  B64D27/10 ,  F02C7/18 ,  H01M8/04111 ,  H01M8/04074 ,  H01M8/04208 ,  F05D2260/232 ,  H01M2250/20

Abstract: A hydrogen-fuelled aircraft power system incorporates a gas turbine engine and a fuel cell, in which air supply and cooling of the fuel cell is integrated with the gas turbine engine to improve overall efficiency of the power system. The system may be part of a turbofan, turboprop or electric propulsion system for an aircraft.