EGR valve device
US8113184B2 · kind B2 · utility
3Cited by
8References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 26, 2007 |
| Grant date | Feb 14, 2012 |
| Priority date | — |
| Expiry date | Oct 22, 2028 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M2026/002
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An EGR valve device includes a valve housing of which inside exhaust gas passes through, a poppet valve as a valve body accommodated in the valve housing, and a hydraulic servo actuator for driving the poppet valve to be opened and closed. The hydraulic servo actuator is provided by a three-port or four-port servo valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.