Drive device for the oil pump of a motor vehicle transmission
US8066492B2 · kind B2 · utility
8Cited by
8References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 12, 2007 |
| Grant date | Nov 29, 2011 |
| Priority date | — |
| Expiry date | Nov 27, 2028 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04C2/344
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A drive device (2) for the oil pump (6) of a motor vehicle automatic transmission, in which the oil pump (6) on the one hand can be coupled to the drive motor by way of an overrunning clutch (34) and on the other hand is drivingly connected to an auxiliary electric motor (22), which is powered by the on-board power supply of the motor vehicle. The electric motor (22) is arranged outside of the pump housing (8) and is drivingly connected to a driven pump impeller wheel (ring gear 10) that is arranged in the pump housing via a non-rotatable connection.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.