Control for variable valve timing
US6289861A · kind A · utility
19Cited by
5References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 2, 2000 |
| Grant date | Sep 18, 2001 |
| Priority date | — |
| Expiry date | May 2, 2020 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01L2001/34496
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Three embodiments of twin overhead camshaft internal combustion engines employing variable valve timing mechanisms for each camshaft. In each embodiment, the variable valve timing mechanisms are supplied with hydraulic fluid from the engine lubricating system through a common supply passage that is formed in the cylinder head and disposed between the variable valve timing mechanism control valves. These control valves are, in turn, disposed between the camshafts at the front of the engine to provide a very compact assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.