About 141 results
https://drivepatents.com/patents/1390500 · 10 Jun 2026
An aircraft system (20) includes a first propulsor rotor (28) rotatable about an axis (38), and a second propulsor rotor (30) rotatable about the axis (38). An electric machine (32) includes a first electric machine rotor (42), a second electric machine ro...
https://drivepatents.com/patents/965432 · 27 May 2026
An aircraft system is provided that includes a first propulsor rotor (42A), a first transmission (106A), a second propulsor rotor (42B), a second transmission (106B) and an intermittent combustion engine (68). The first propulsor rotor (42A) is rotatable a...
https://drivepatents.com/patents/965177 · 27 May 2026
A method of operating a dual fuel gas turbine engine (102) includes operating the engine (102) with a first fuel according to a first control loop (202). The method also includes while the engine (102) is operating with the first fuel, bumplessly transitio...
https://drivepatents.com/patents/965219 · 27 May 2026
An aircraft engine (10) having a centerline (11) has: an oil system (28; 100) including: a component (101) located above the centerline (11) and having an inlet (101A) and an outlet (101B); an oil circuit (110) interconnecting the components (101) and incl...
https://drivepatents.com/patents/1399483 · 27 May 2026
A method of operating a multi-engine system of an helicopter 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 rotation...
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/1394801 · 13 May 2026
A turbofan engine (10) has a bypass passage for channelling a bypass flow and a core passage for channelling a core flow around a central axis (30). An exhaust mixer arrangement (32; 32') comprises a mixer body (33) mounted for rotation about the central a...
https://drivepatents.com/patents/1399481 · 13 May 2026
A method of operating a multi-engine system of an helicopter 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 (152), and a range of ro...
https://drivepatents.com/patents/1387145 · 13 May 2026
A blade containment assembly for a gas turbine engine (10) comprises a casing (15) having a first casing member (15a) surrounding a set of rotor blades (14c) and a second casing member (15b) extending axially from the first casing member (15a). The first c...
https://drivepatents.com/patents/1387882 · 13 May 2026
The torque transfer assembly can have a torque shaft (48, 148, 248) rotatable around a rotation axis (46), the torque shaft (48) having a first end (50) and a second end (52) opposite the first end (50) along the rotation axis (46), a first reference featu...