About 143 results
https://drivepatents.com/patents/1392628 · 24 Dec 2025
An air intake (36) for an aircraft propulsion system (10) includes an air inlet duct (54), a core flow duct (56), a bypass flow duct (58), a splitter (60), and a flow control device (114). The air inlet duct (54) includes an intake inlet (64) and a gas pat...
https://drivepatents.com/patents/1397393 · 24 Dec 2025
A method including generating a first duty cycle value for the PWM; monitoring a current value of a parameter; generating a duty cycle limit value for the PWM, including activating more than one duty cycle limit functions (752, 754, 756) based on correspon...
https://drivepatents.com/patents/1388064 · 24 Dec 2025
An aircraft engine comprises a rotor (42), an engine case (50) having first and second mounting brackets (106, 108) projecting from an exterior surface thereof, and an auxiliary engine system (64). The system includes an electric machine (74), a belt drive...
https://drivepatents.com/patents/1391663 · 17 Dec 2025
An aircraft system (20) includes a propulsor rotor (28), a geartrain (76), a thermal engine (30), a drivetrain (78) and an electric machine (32). The geartrain (76) includes a a first power input (81) a second power input (82) and apower output (80) couple...
https://drivepatents.com/patents/1388641 · 10 Dec 2025
An aircraft engine (10) includes a core gas path (28) through which a core gas flow (28a) flows, an exhaust duct (30) receiving the core gas flow (28a), an air-cooled heat exchanger (34) disposed in a heat exchanger duct (36, 38) having an air inlet (34a) ...
https://drivepatents.com/patents/1388122 · 10 Dec 2025
An assembly for an aircraft propulsion system includes an output shaft (56) and a gear assembly (62). The gear assembly (62) is configured to drive rotation of the output shaft (56). The gear assembly (62) includes a sun gear (66), a plurality of planet ge...
https://drivepatents.com/patents/1391364 · 3 Dec 2025
Methods for starting an aircraft auxiliary power unit (APU) (12) in different operating conditions. A method includes performing a first start attempt on the APU (12) when the APU (12) is subjected to an operating condition and determining that the first s...
https://drivepatents.com/patents/1394146 · 3 Dec 2025
A method and system for processing parameter values from a redundant sensor (34) configured to sense a parameter used in the control of an aircraft engine (10) is provided. The method includes: a) receiving a plurality of parameter values from a redundant ...
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/1395310 · 26 Nov 2025
A borescope plug assembly (68) includes a housing (120), a plug (122), and a spring (124). The housing (120) extends between a first housing end (128) and a second housing end (130). The housing (120) includes a plug aperture (134), an internal chamber (13...