About 149 results
https://drivepatents.com/patents/1396700 · 16 Jul 2025
A method of reducing acoustic noise produced by a hybrid power plant (20) having a thermal engine (22) and an electrical motor (25) includes driving a propulsor (21) with the hybrid power plant (20) operated at an initial work split ratio and at a power le...
https://drivepatents.com/patents/1387821 · 2 Jul 2025
A rotary engine (10, 110, 210), has: an outer body (11) defining a rotor cavity (14); a rotor within the rotor cavity (14) and defining at least one chamber; a pilot subchamber (30) defined by the outer body (11) and having an outlet in communication with ...
https://drivepatents.com/patents/1398321 · 11 Jun 2025
There are described methods and systems for providing an autothrottle mode in a propeller-driven aircraft. A thrust change is obtained corresponding to a difference between an actual thrust and a desired thrust for an engine (110). When greater than a pre-...
https://drivepatents.com/patents/1401568 · 21 May 2025
Methods and systems for operating an engine (100) are provided. An engine core temperature is monitored. When the engine core temperature is below an engine thermal limit adjusted for a level of deterioration of the engine (100), an output power of the eng...
https://drivepatents.com/patents/1399299 · 23 Apr 2025
A method and a system for synthesizing thrust from a turbofan engine (100) are provided. The turbofan engine (100) comprising a compressor section (14), a combustor (16), and a turbine section (18) in serial fluid flow communication. The engine is operated...
https://drivepatents.com/patents/1399116 · 16 Apr 2025
A diffuser nozzle (54) for a gas turbine engine (20) includes a housing (56) disposed about a nozzle axis (58) and extending between a first nozzle end (60) and a second nozzle end (62). The housing (56) defines a nozzle duct (70). A plurality of walls (72...
https://drivepatents.com/patents/1399117 · 2 Apr 2025
A gas turbine engine (20) for an aircraft includes a turbine section (28) and an exhaust section (30) configured to receive an exhaust gas stream from the turbine section (28). The exhaust section (30) includes a monolithic catalyst structure configured to...
https://drivepatents.com/patents/1394024 · 26 Mar 2025
A system (20) is provided for an aircraft. This aircraft system (20) includes an aircraft powerplant (22), a powerplant sensor system (26), an environment sensor system (28) and a monitoring system (30). The aircraft powerplant (22) includes a heat engine ...
https://drivepatents.com/patents/1394795 · 29 Jan 2025
A shaft assembly for an aircraft powerplant (1), comprising: a shaft (20) extending along an axis (A) from a first shaft end (20A) to a second shaft end (20B); a bearing assembly (30) extending about the axis and supporting the first shaft end (20A) of the...
https://drivepatents.com/patents/1396701 · 15 Jan 2025
A journal shaft (30) for a journal bearing assembly (28) of an aircraft engine includes a shaft body extending along a longitudinal axis (A). The shaft body has a radially outer surface (54) and a radially inner surface (52) radially spaced apart from the ...