About 21 results
https://drivepatents.com/patents/1399480 · 27 May 2026
A method of operating a multi-engine system of an helicopter (100) includes the multi-engine system having a first turboshaft engine having a first shaft, a second turboshaft engine having a second shaft, a gearbox having a clutch system, and a range of ro...
https://drivepatents.com/patents/1397771 · 15 Apr 2026
An epicyclic gear train (12) of an aircraft powerplant includes a sun gear (32) having a rotation axis (RA), a ring gear (34), a plurality of intermediate gears (36) circumscribed by the ring gear (34) and meshed with the sun gear (32) and the ring gear (3...
https://drivepatents.com/patents/1394664 · 4 Mar 2026
An aircraft engine system includes a core assembly having at least a burner section and a fuel cell (344) configured to generate electrical power. A cryogenic fuel source (324) is configured to supply a fuel through a fuel supply line (326) to each of the ...
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/1396122 · 4 Feb 2026
A method for operating an aircraft (22) having a first propulsion unit (28A) and a second propulsion unit (28B). During this method a propulsion unit-inoperative event is identified where the first propulsion unit (28A) is inoperative and the second propul...
https://drivepatents.com/patents/1396706 · 3 Dec 2025
An aircraft engine includes an air inlet duct and at least one strut having a leading edge and a trailing edge (31B). The at least one strut (30) extends across at least part of the air inlet duct and has a strut passage. The trailing edge (31B) has one or...
https://drivepatents.com/patents/1396305 · 22 Oct 2025
A method 2020 of refuelling an aircraft comprising a gas turbine engine and a fuel tank arranged to provide fuel to the gas turbine engine comprises obtaining 2022 an amount of energy required for an intended flight profile; obtaining 2024 a calorific valu...
https://drivepatents.com/patents/1394646 · 8 Oct 2025
A turbine engine system includes a core assembly having a compressor section (404), a burner section (406), and a turbine section (408) arranged along a shaft, with a core flow path (416) through the turbine engine (400) such that exhaust from the burner s...
https://drivepatents.com/patents/1397361 · 10 Sep 2025
An aircraft propulsion system comprises first and second engines (100, 200) and first (134) and second electrical machines coupled to the first and second engines respectively. The first electrical machine is arranged to be driven by electrical power in or...
https://drivepatents.com/patents/1395824 · 13 Aug 2025
An electricity generation and propulsion system of an aircraft is provided. The electricity generation and propulsion system includes a fuselage (120), a hybrid-electric power generation system (130) operably disposed in the fuselage and a ram air turbine ...