Valve for internal combustion engines
US4938181A · kind A · utility
6Cited by
2References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 9, 1989 |
| Grant date | Jul 3, 1990 |
| Priority date | — |
| Expiry date | Nov 9, 2009 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01L3/20
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The invention relates to a valve which is intended for internal combustion engines and which comprises a valve-head (2) which has formed thereon a circular abutment surface for sealing coaction with a valve seat (9). The valve-head (2) has connected therewith a valve-stem (3) by means of which the valve is moveably journalled in a valve-guide (10). According to the invention, the valve-head (2) has a relatively small wall-thickness, and the valve-stem (3) has provided thereon a collar (16) which on the side thereof distal from the valve-plate (2) has an abutment surface (17) for abutment with a fixed abutment surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.