About 17 results
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/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...
https://drivepatents.com/patents/1391046 · 14 Jan 2026
L'invention comprend un réducteur de vitesse pour une turbomachine (1) pour aéronef, d'axe longitudinal X, le réducteur de vitesse comprenant une couronne externe (24) et un porte-couronne (26) fixé à la couronne externe (24) qui comporte une premièr...
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/1393496 · 14 May 2025
Porte-satellites (213) pour un réducteur de vitesse (10) d'une turbomachine (1) d'aéronef, comportant :- un porte-cage (222),- une cage (220),caractérisé en ce que la cage (220) comprend deux pièces (220a, 220b) :- une première pièce (220a) comporta...
https://drivepatents.com/patents/1397178 · 18 Dec 2024
Réducteur mécanique (60) de turbomachine (1), en particulier d'aéronef, ce réducteur comportant : - un solaire (70), - une couronne (90), - des satellites (80) qui sont engrenés avec le solaire (70) et la couronne (90), - des paliers hydrodynamiques (...
https://drivepatents.com/patents/971600 · 6 Aug 2014
A gas turbine engine (20) comprises a fan section (22) including a fan (36) rotatable about an axis and a speed reduction device in communication with the fan (36). The speed reduction device (45) includes a planetary fan drive gear system (50) with a plan...
https://drivepatents.com/patents/984895 · 5 Jun 2013
A system for changing a speed ratio between a compressor boost stage (12) and at least one power turbine (16) of a gas turbine engine (10) comprises a coupling device (20) configured to selectively transmit energy from the at least one power turbine (16) t...
https://drivepatents.com/patents/993344 · 30 Jan 2013
A gearing assembly (52) is provided and includes a mechanical transmission (56), a differential (72), the mechanical transmission (56) and the differential (72) being configured to rotatably couple a prime mover (10) and a generator (50) such that a first ...
https://drivepatents.com/patents/993331 · 30 Jan 2013
An example mechanical transmission assembly (56;156) receives an input (70) rotating at a first rotational speed and provides an output (72) rotating at a second rotational speed. The mechanical transmission (56; 156) selectively adjusts the second rotatio...