US 12,270,341 B2
Gas turbine engine fuel system
Chloe J Palmer, Derby (GB); Jacopo Tacconi, Derby (GB); and Nicholas Grech, Derby (GB)
Assigned to ROLLS-ROYCE plc, London (GB)
Filed by ROLLS-ROYCE PLC, London (GB)
Filed on Oct. 13, 2023, as Appl. No. 18/379,717.
Claims priority of application No. 2215721 (GB), filed on Oct. 24, 2022.
Prior Publication US 2024/0133343 A1, Apr. 25, 2024
Prior Publication US 2024/0229717 A9, Jul. 11, 2024
Int. Cl. F02C 7/224 (2006.01); F02C 3/22 (2006.01); F02C 7/14 (2006.01)
CPC F02C 7/224 (2013.01) [F02C 3/22 (2013.01); F02C 7/14 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A gas turbine engine fuel system comprising:
a fuel offtake configured to divert a portion of hydrogen fuel from a main fuel conduit;
a burner configured to burn the portion of hydrogen fuel diverted from the main fuel conduit;
a heat exchanger configured to transfer heat from exhaust gasses produced by the burner to hydrogen fuel in the main fuel conduit; and
a power recovery device configured to extract power from the exhaust gasses of the burner downstream of the heat exchanger,
wherein the power recovery device is a burner exhaust turbine.