Variable valve train mechanism of internal combustion engine
US7469669B2 · kind B2 · utility
2Cited by
16References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 12, 2005 |
| Grant date | Dec 30, 2008 |
| Priority date | — |
| Expiry date | Sep 12, 2025 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01L2305/00
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A rotational cam can be disposed on a camshaft rotationally driven by a crankshaft of an internal combustion engine. A swing cam can be swingable through the rotational cam. The swing cam has a rotational cam abutment portion which contacts the rotational cam and transmits driving force from the rotational cam to the swing cam. An abutment portion displacing mechanism can be provided for displacing the rotational cam abutment portion to change a relative distance between the rotational cam abutment portion and a center axis of the swing shaft. Changing the relative distance allows changing a lift and the like of a valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.