Speed-reducing gear unit to absorb the axial loads generated by a turbojet fan
US6622473B2 · kind B2 · utility
80Cited by
5References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 5, 2001 |
| Grant date | Sep 23, 2003 |
| Priority date | — |
| Expiry date | Mar 13, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S74/05
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A turbojet engine having a fan (12) driven by a speed-reducing gear unit (23) whose input is driven by a turbine shaft (22). The speed-reducing gear unit (23) includes a planet gear (24) affixed to a turbine shaft (22), a ring gear (28) joined to a fan shaft (12) and a plurality of satellite gears (25) mounted on a stationary satellite support (27) and having helical teeth which operatively engage with helical teeth of the ring gear and the planet gear to balance axial loads along the turbine shaft and the fan shaft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.