About 11 results
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/1393205 · 4 Feb 2026
An assembly is provided for an aircraft propulsion system. This assembly includes a carrier (90), a first gear system (86), a second gear system (88) and a lock device (106). The first gear system (88) includes a sun gear (92), a first ring gear (94) and a...
https://drivepatents.com/patents/1387650 · 26 Nov 2025
A transmission assembly (3; 3'; 3"; 3ʹʹʹ; 3ʺʺ; 3‴ʺʹ; 3‴‴; 3‴‴′ʹ; 3‴‴ʺ) for an aircraft (1; 1'; 1"; 1ʹʹʹ. 1ʺʺ; 1‴ʺ; 1‴‴; 1‴‴′; 1‴‴ʺ), comprising a member to be lubricated (18; 40; 1800; 1801; 1400; 1401) for t...
https://drivepatents.com/patents/1398019 · 13 Aug 2025
Control schemes for controlling a gas turbine engine (100) in response to disturbances associated with a load (40) mechanically coupled with the gas turbine engine (100) are provided. In one aspect, a gas turbine engine (100) mechanically coupled with a lo...
https://drivepatents.com/patents/1393894 · 23 Jul 2025
An assembly for an aircraft includes a geartrain (72), a first propulsor rotor (22) and a rotating structure (68). The geartrain (72) includes a sun gear (92), a ring gear (94), a plurality of intermediate gears (96) and a carrier (98). The ring gear (94) ...
https://drivepatents.com/patents/1388075 · 25 Jun 2025
The present invention relates to a method of controlling an economical operating mode for an aircraft (1) comprising two heat engines (11), only one of said heat engines (11) being active and supplying mechanical power to said rotor (2,3) in said economica...
https://drivepatents.com/patents/1388404 · 11 Jun 2025
The present invention relates to a method for piloting an aircraft (1) having at least two engines (10) burning fuel and a transmission chain (25) connected to a rotary wing (5), each engine (10) having a power shaft (20) connected to the transmission chai...
https://drivepatents.com/patents/1394390 · 6 Nov 2024
The present invention relates to an aircraft (1) and a method for controlling such an aircraft (1) comprising two turbine engines (11, 12), an electrical machine (4), an electrical power source (5) and a rotor driven in rotation by one of the two turbine e...
https://drivepatents.com/patents/986883 · 11 Sep 2013
A rotorcraft engine starting system includes a starting system controller 13 in communication with a flight control computer; an electric engine starter 9; an electronic engine controller 2 in communication with the electric engine starter; an electrical p...
https://drivepatents.com/patents/985109 · 17 Apr 2013
A multi-engine system (10) for use on an aircraft (14) and a method for rapidly starting an engine are disclosed. The system (10) may comprise a first aircraft engine (16A) and a second aircraft engine (16B) configured to drive at least one device (12) of ...