Hydraulic pressure supplying device for transmission
US7762277B2 · kind B2 · utility
3Cited by
6References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 31, 2005 |
| Grant date | Jul 27, 2010 |
| Priority date | — |
| Expiry date | Sep 16, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86163
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
In a hydraulic pressure supplying device for a transmission including a first oil pump adapted to be driven by a main shaft of the transmission, at least one second oil pump adapted to be driven by suitable means, and a check valve provided between the discharge side of the first oil pump and the discharge side of the second oil pump to prevent the flow of oil from the first oil pump to the second oil pump, a first filter is provided between the second oil pump and the check valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.