Oil pump for an internal combustion engine having toothed wheels
US6206651A · kind A · utility
1Cited by
4References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 25, 1999 |
| Grant date | Mar 27, 2001 |
| Priority date | — |
| Expiry date | Feb 25, 2019 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01M2001/123
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The invention relates to an oil pump for an internal combustion engine with at least one pair of toothed wheels which are in mutual engagement, at least one intake port and at least one outlet port. An improved supply of oil at reduced driving power can be achieved with at least two pairs of toothed wheels; a first common shaft, which a first toothed wheel of each pair of toothed wheels is arranged, and means are provided to charge the individual pairs of toothed wheels with oil depending on the required quantity of conveyed oil.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.