Driving apparatus for intake and exhaust valves of internal combustion engine
US4708101A · kind A · utility
28Cited by
11References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 18, 1985 |
| Grant date | Nov 24, 1987 |
| Priority date | — |
| Expiry date | Dec 18, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/2101
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
There is provided an apparatus for driving intake and exhaust valves (12) of an internal combustion engine. The apparatus comprises a valve lift controlling means (16) connected to the valves to control the lift of the valves in response to the engine operating conditions, valve driving cams (13) fixed on a cam shaft (14) and being in contact with the valve lift controlling means (16), and a phase controlling means (23) arranged on the cam shaft (14) to control the relative rotational phase of the valve driving cams, i.e., the open and close timing of the valves (12) in response to the engine operating conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.