Oil pump apparatus
US5759013A · kind A · utility
19Cited by
5References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 21, 1997 |
| Grant date | Jun 2, 1998 |
| Priority date | — |
| Expiry date | Jan 21, 2017 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04C14/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An oil pump apparatus incorporates, an oil pump housing, and a rotor located in the oil pump housing, wherein the rotor forms a first set of pockets having a capacity increasing toward the rotating direction of the rotor and a second set of pockets having a capacity decreasing toward the rotating direction of the rotor. The apparatus further includes a plurality of suction ports connected with the first set of pockets, each of the suction ports being isolated from other adjacent suction ports, a discharge port connected with the second set of the pockets, and a control valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.