Valve assembly for internal-combustion engines
US4977869A · kind A · utility
5Cited by
3References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 12, 1990 |
| Grant date | Dec 18, 1990 |
| Priority date | — |
| Expiry date | Feb 12, 2010 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01L2003/258
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Valve assembly (22) intended for closing a combustion chamber (14) of an internal-combustion engine and comprising a valve (36) and a valve seat (42), the valve lifting off from its seat in order to open the combustion chamber (14) by moving away from the latter. According to the invention, the valve seat (42) is designed to move relative to the combustion chamber (14) under the effect of the pressure prevailing in this chamber and thereby to reinforce the closing of the valve assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.