Valve stop for engine with exhaust gas recirculation
US9587565B2 · kind B2 · utility
2Cited by
30References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 17, 2011 |
| Grant date | Mar 7, 2017 |
| Priority date | — |
| Expiry date | May 25, 2033 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M26/47
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A butterfly valve includes a body with a bore through which exhaust gas may flow and a valve member rotatably mounted within the bore for restricting flow through the bore. A stop extends into the bore to limit movement of the valve member and prevent the valve member from rotating to a closed position. The stop defines a restricted flow position at which the valve member is positioned between an open position and the closed position. An internal combustion engine utilizing the butterfly valve is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.