Valve operating system of internal combustion engine
US5058541A · kind A · utility
9Cited by
11References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 24, 1990 |
| Grant date | Oct 22, 1991 |
| Priority date | — |
| Expiry date | Apr 24, 2010 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01L1/465
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A valve operating system for an internal combustion engine has an engine valve having a valve shaft portion and a valve body portion at an end tip of the valve shaft portion. The engine valve is supported on the body of the engine for opening and closing operations. A double cylindrical piston forms an air pressure chamber, with the air pressure biasing the valve in a valve closing direction. A driving member for driving the engine valve in a valve opening direction is operatively connected to the rear end of the valve shaft portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.