Abstract:
An aircraft system (5) is disclosed including: a fuel storage system (10) comprising a first fuel tank (21) capable of storing a first fuel (11) and a second fuel tank (22) capable of storing a second fuel (12); a fuel cell system (400) comprising a fuel cell (401) capable of producing electrical power (410) using at least one of the first fuel (11) or the second fuel (12); and a fuel delivery system (50) capable of delivering a fuel from the fuel storage system (10) to the fuel cell system (400).
Abstract:
A dual fuel propulsion system 100 is disclosed including a gas turbine engine 101 capable of generating a propulsive thrust using a cryogenic liquid fuel 1 12. A method of operating an aircraft engine 101 is disclosed using a selected proportion of a first fuel 1 1 and a second fuel 12 during selected portions of a flight profile 120 to generate hot gases that drive a gas turbine engine 101.
Abstract:
An aircraft engine fuel system 900 is disclosed having a gas turbine engine 101, a turbocharger 910, a compressor bleed air system 930 for providing compressor air (A) from the gas turbine engine 101 to the turbocharger 910, and a fuel delivery system 940 for providing compressed gaseous fuel (G) from the turbocharger 910 to the gas turbine engine 101, whereby the compressor air (A) powers the turbocharger 910 and the turbocharger 910 pumps the compressed gaseous fuel (G) to the gas turbine engine 101. Also disclosed is a method of operating an aircraft engine fuel system 900 including the steps of: operating a gas turbine engine 101; extracting compressor air (A) from the gas turbine engine 101; routing the compressor air (A) to a turbocharger 910; and operating the turbocharger 910 to pump a compressed gaseous fuel (G) to the gas turbine engine 101.
Abstract:
A cryogenic fuel storage system 10 for an aircraft is disclosed including a cryogenic fuel tank 22 having a first wall 23 forming a storage volume 24 capable of storing a cryogenic liquid fuel 12; an inflow system 32 capable of flowing the cryogenic liquid fuel 12 into the storage volume 24; an outflow system 30 adapted to deliver the cryogenic liquid fuel 12 from the cryogenic fuel storage system 10; and a vent system 40 capable of removing at least a portion of a gaseous fuel 19 formed from the cryogenic liquid fuel 12 in the storage volume 24.
Abstract:
A cryogenic fuel storage system 10 for an aircraft is disclosed including a cryogenic fuel tank 22 having a first wall 23 forming a storage volume 24 capable of storing a cryogenic liquid fuel 12; an inflow system 32 capable of flowing the cryogenic liquid fuel 12 into the storage volume 24; an outflow system 30 adapted to deliver the cryogenic liquid fuel 12 from the cryogenic fuel storage system 10; and a vent system 40 capable of removing at least a portion of a gaseous fuel 19 formed from the cryogenic liquid fuel 12 in the storage volume 24.