Gearbox lubrication system
US9429224B2 · kind B2 · utility
0Cited by
19References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 17, 2014 |
| Grant date | Aug 30, 2016 |
| Priority date | — |
| Expiry date | Aug 10, 2034 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H57/0471
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A high speed gearbox includes a housing which encloses a rotating gear and a volume which contains oil and air. The gear has an outer first surface exposed to the volume and has a second surface exposed to the environment. A vent arrangement includes first and second passages formed in the gear. The second passage extends axially part way into the gear and has an outer end exposed to the second surface. The first passage extends radially from the first surface to the second passage. A check valve is mounted in the second passage and permits one-way flow of air from the volume to the environment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.