Cam torque actuated variable camshaft timing device with a bi-directional oil pressure bias circuit
US8800515B1 · kind B1 · utility
29Cited by
29References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 13, 2013 |
| Grant date | Aug 12, 2014 |
| Priority date | — |
| Expiry date | Mar 13, 2033 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01L2001/34426
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A phaser with a cam torque actuated vane defining cam torque actuated advance and retard chambers and an oil pressure actuated vane defining oil pressure actuated advance and retard chambers. The phaser is moved to an advance position and a retard position through both cam torque energy and oil pressure energy. The holding position of the phaser is maintained through oil pressure energy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.