Valve, particularly crossover passage valve
US4363309A · kind A · utility
5Cited by
10References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 11, 1980 |
| Grant date | Dec 14, 1982 |
| Priority date | — |
| Expiry date | Aug 11, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A sealed butterfly-type valve for an exhaust gas passage in an engine intake mainfold, the valve having a rotatably mounted stem carrying a gas flow modifying valve element disposed in the passage, and sealing against escape of exhaust gases along the stem is prevented by axially biasing the stem to urge an annular axial sealing face on the stem into engagement with an annular high temperature resistant bearing element of compressed graphite or the like surrounding the stem on the passage wall.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.