Oil pump of vehicle having inner ring
US11022134B2 · kind B2 · utility
0Cited by
22References
11Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Mar 15, 2019 |
| Grant date | Jun 1, 2021 |
| Priority date | — |
| Expiry date | Apr 25, 2039 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05C2253/20
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The present disclosure provides an oil pump including a housing in which a space is formed, a rotor installed to be rotatable in an eccentric position in the housing and having vanes mounted along a circumference direction to be protruded and retracted in a radial direction of the housing, and an inner ring fitted to an inner surface of the housing and rotated along with the rotor when the rotor rotates. The housing is formed of a material harder than the material of the inner ring, and oil for lubrication is provided between the housing and the inner ring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.