Valve device
US8327635B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 12, 2007 |
| Grant date | Dec 11, 2012 |
| Priority date | — |
| Expiry date | Oct 24, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07C9/20
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A valve device, in particular for an exhaust system of an internal combustion engine, has a valve flap which is arranged in a tube and can assume a basic position and an actuating position. A motor-driven valve drive that is arranged outside the tube and is coupled to a shaft of the valve flap by a force transmission element. A mechanical restoring element urges the valve flap into the basic position. The valve drive works against the mechanical restoring element as far as to the actuating position. A lever is connected to one end of the force transmission element and when in the actuating position of the valve flap, is in or near the dead-center position with respect to the force transmission direction from or to the force transmission element. In an alternative configuration, the lever is coupled to the shaft of the valve flap and, in the actuating position of the valve flap, is in a position in which the distance between the force transmission direction from or to the force transmission element and the pivot axis of the lever is at least approximately a maximum.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.