公开(公告)号：US20230120297A1

公开(公告)日：2023-04-20

申请号：US17935269

申请日：2022-09-26

Applicant: ROLLS-ROYCE plc

Inventor： Philip D. BUTLER

IPC: B64D27/10 ,  B64D27/24 ,  B64D33/08 ,  F02C6/00 ,  H01M8/04111 ,  H01M8/04119 ,  H01M8/04082 ,  H02K7/18

Abstract: An aircraft propulsion system comprises a gas turbine engine arranged to provide propulsive thrust and a fuel cell system having an air input port, the aircraft propulsion system being configured such that air from a compressor of the gas turbine engine is provided to the air input port during operation of the aircraft propulsion system. The fuel cell system is able to provide appreciable electrical power at altitude without the need for a dedicated compressor.

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.