Submerged gear and bearing guard
US8794107B2 · kind B2 · utility
3Cited by
19References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 5, 2010 |
| Grant date | Aug 5, 2014 |
| Priority date | — |
| Expiry date | Feb 20, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/2186
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A gearbox for an auxiliary power unit (APU) includes features that prevent submersion of gears in lubricant in extreme attitude orientations. The gearbox includes a plurality of gears that drive various pumps, generators and/or other aircraft systems. A shield surrounds a portion of one of the plurality of gears to prevent lubricant from submerging the gear. The shield defines at least a portion of an open chamber that is at least partially surrounded by lubricant at extreme attitude orientations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.