Variable oil pump
US10815845B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 28, 2019 |
| Grant date | Oct 27, 2020 |
| Priority date | — |
| Expiry date | Jan 28, 2039 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01M2001/0292
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A variable oil pump includes a pump housing, an oil pump rotor accommodated in the pump housing, an adjustment member accommodated in the pump housing and configured to adjust a discharge amount of oil discharged from the oil pump rotor by displacing in a state where the adjustment member holds the oil pump rotor from an outer circumferential side in such a manner that the oil pump rotor is rotatable, and a guide portion including a guide hole provided at the adjustment member and a pin provided at the pump housing and engaging with the guide hole. The guide portion is configured to guide a displacement of the adjustment member relative to the pump housing by allowing the guide hole and the pin to engage with each other. The variable oil pump includes a drain passage configured to drain oil accumulated in the guide hole.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.