Variable valve operating device
US7640900B2 · kind B2 · utility
4Cited by
1References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 30, 2005 |
| Grant date | Jan 5, 2010 |
| Priority date | — |
| Expiry date | Sep 18, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/2107
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The present invention relates to a variable valve operating device and makes it possible to inhibit friction during driving force transmission and provide high durability through the use of a compact configuration.A first roller 170, which comes into contact with a drive cam surface 124 of a camshaft 120, has a larger diameter than a second roller 172, which comes into contact with a slide surface 156 of a swing member 150. A coupling shaft 174 couples the first roller 170 to the second roller 172 so that the rollers 170, 172 can rotate independently. The slide surface 156 is curved toward the drive cam surface 124.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.