Electrically actuated EGR valve
US4840350A · kind A · utility
38Cited by
7References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 31, 1987 |
| Grant date | Jun 20, 1989 |
| Priority date | — |
| Expiry date | Jul 31, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7761
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An electrically controlled EGR valve comprising: a valve stem (64), eccentrically positioned from an axis of rotation and movable in a substantially axial manner relative to a valve seat (84); a poppet valve (70) carried by the valve stem for closing the valve seat (84); a first shaft (52) eccentrically positioned relative to the axis of rotation and engagably connected to one end of the valve stem (64), and an electrically controlled actuator such as a torque motor (30) for rotating the first shaft (52) about the axis to cause the valve stem to move.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.