Variable valve timing
US5361736A · kind A · utility
15Cited by
8References
12Claims
0Family size
Inventors
Key dates
| Filing date | Dec 15, 1993 |
| Grant date | Nov 8, 1994 |
| Priority date | — |
| Expiry date | Dec 15, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/2102
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A means of varying both the opening and closing angle of internal combustion engine valves by means of a mechanism which varies the instantaneous phase of the camshaft with respect to the phase of the crankshaft so causing the cam to spend a longer or shorter time than nominal in contact with the valve tappet in response to a chosen control programme.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.