US 12,345,205 B2
Hydrogen-fuelled gas turbine engine with fuel-to-air turbocharger
Chloe Jo Palmer, Derby (GB)
Assigned to Rolls-Royce plc
Filed by ROLLS-ROYCE plc, London (GB)
Filed on May 2, 2023, as Appl. No. 18/310,747.
Claims priority of application No. 2207929 (GB), filed on May 30, 2022.
Prior Publication US 2023/0383694 A1, Nov. 30, 2023
Int. Cl. F02C 7/224 (2006.01); B64D 13/08 (2006.01); B64D 15/04 (2006.01); B64D 37/30 (2006.01); B64D 37/34 (2006.01); F02C 3/06 (2006.01); F02C 3/22 (2006.01)
CPC F02C 7/224 (2013.01) [B64D 13/08 (2013.01); B64D 15/04 (2013.01); B64D 37/30 (2013.01); B64D 37/34 (2013.01); F02C 3/06 (2013.01); F02C 3/22 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An aircraft comprising a hydrogen-fuelled gas turbine engine having a fuel input path from a fuel input of the hydrogen-fuelled gas turbine engine to a combustor thereof, the hydrogen-fuelled gas turbine 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, wherein the heat-exchanger is arranged to receive waste heat from an engine core in order to heat hydrogen fuel introduced at the fuel input prior to input thereof to the combustor, the hydrogen-fuelled gas turbine engine further comprising an air compressor arranged to be driven by the fuel turbine,
wherein the hydrogen-fuelled gas turbine engine is arranged to provide at least one of propulsive thrust and lift to the aircraft, and wherein the aircraft further comprises air flow ducting arranged to deliver air output by the air compressor to one or more parts of the aircraft and an air scooping arrangement arranged to direct ambient air to the air compressor in operation of the aircraft.