Variable compression ratio mechanism
US7047917B2 · kind B2 · utility
7Cited by
2References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 4, 2004 |
| Grant date | May 23, 2006 |
| Priority date | — |
| Expiry date | Aug 4, 2024 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02B75/047
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
In a variable compression ratio mechanism that serves to change the compression ratio of an internal combustion engine by rotating camshafts so as to cause relative movement between a cylinder block and a crankcase, an oil film forming device forms oil films on the sliding portions of camshafts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.