About 306 results
Showing the first 200 results.
https://drivepatents.com/patents/1386435 · 27 May 2026
A propulsion system 100 comprises a propulsive hydrogen-burning gas turbine engine 190A, a first tank 106 storing liquid hydrogen with an ullage 105 and a first fuel line 108 including a fuel pump 112 and a vaporiser 116, the first fuel line providing gase...
https://drivepatents.com/patents/1397555 · 6 May 2026
In general, techniques are described regarding a rotary servo for actuators. A servo assembly includes a cylindrical outer sleeve including ports, a cylindrical outer spool annularly disposed within the cylindrical outer sleeve, a stepper motor mechanicall...
https://drivepatents.com/patents/1393150 · 22 Apr 2026
A complex cycle gas turbine engine (103) for an aircraft with hydrogen fuel supply. The gas turbine engine comprises, in fluid flow series, a core gas turbine (105) and a recuperator (701) for heating hydrogen fuel prior to combustion by turbine exhaust pr...
https://drivepatents.com/patents/1386094 · 15 Apr 2026
A hydraulic system for a hydrogen fuelled gas turbine engine. The hydraulic system comprises a closed-loop hydraulic fluid conduit (232), a hydrogen-hydraulic fluid heat exchanger (230) configured to exchange heat between cryogenic hydrogen fuel and hydrau...
https://drivepatents.com/patents/1393164 · 25 Mar 2026
There is disclosed a gas turbine engine (10) for an aircraft, the gas turbine engine comprising: a compressor stage; a bleed air line (50) diverted from the compressor stage; and a thermoelectric generator system (100, 200, 300). The thermoelectric generat...
https://drivepatents.com/patents/1386162 · 11 Mar 2026
A blower system (400) for supplying pressurized air to an airframe of an aircraft comprises: an air inlet (422) for receiving air from an air source; an air outlet (426) for supplying pressurized air to an airframe; a blower compressor (420) in fluid commu...
https://drivepatents.com/patents/1386946 · 11 Mar 2026
A fuel system for a hydrogen fuelled gas turbine engine (201) comprises a main hydrogen fuel storage unit (104) configured to store liquid hydrogen. The main fuel storage unit (104) comprises an ullage space configured to store ullage fluid comprising gase...
https://drivepatents.com/patents/1398186 · 4 Mar 2026
A gas turbine engine (10) comprises a bypass duct (22) and a heat exchanger assembly (101, 102, 103), the heat exchanger assembly (101, 102, 103) comprising a heat exchanger (130) and a heat exchanger duct (105) having an inlet region (110), an inflection ...
https://drivepatents.com/patents/1387640 · 25 Feb 2026
Aircraft power and propulsion systems 400 and methods 600, 700 of starting gas turbine engines 101 of aircraft power and propulsion systems 400 are disclosed. In one example, an aircraft power and propulsion system 400 comprises a gas turbine engine 101 ha...
https://drivepatents.com/patents/1387720 · 18 Feb 2026
Aircraft power and propulsion systems 200 and methods 300 of starting gas turbine engines 101 of aircraft power and propulsion systems 200 are disclosed. In one example, an aircraft power and propulsion system 200 comprises: a gas turbine engine 101 having...