Camshaft adjuster of an internal combustion engine
US7237517B2 · kind B2 · utility
0Cited by
3References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 19, 2005 |
| Grant date | Jul 3, 2007 |
| Priority date | — |
| Expiry date | Aug 24, 2025 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01L2820/041
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
In a camshaft adjuster for an internal combustion engine comprising a control valve having a control piston slidably supported in a valve housing, an operating unit for adjusting the angular position of the camshaft relative to a crankshaft of the engine and a drive unit with an electric motor and a transmission structure for actuating the control piston, the transmission is non-self-locking so that backward movement of the valve piston can be achieved by a backward force on the valve piston.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.