Variable displacement variable pressure vane pump system
US8444395B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 31, 2007 |
| Grant date | May 21, 2013 |
| Priority date | — |
| Expiry date | Jul 26, 2030 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01M2001/0238
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A variable displacement variable pressure vane pump system provides lubrication oil to a mechanical system. The pump system includes a first control mechanism to apply a force to a control slider to counter a biasing force of a biasing spring and urge the control slider away from a position corresponding to a maximum displacement position of the pump. A second control mechanism applies a force to the control slider to alter the displacement of the pump. A control varies the supply of lubrication oil to the second control mechanism to alter the output of the pump to closely correspond to the lubrication requirements of the mechanical system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.