Valve gear of internal combustion engine
US7513231B2 · kind B2 · utility
7Cited by
4References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 15, 2004 |
| Grant date | Apr 7, 2009 |
| Priority date | — |
| Expiry date | Oct 17, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/2107
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
There is provided a valve gear (11) with a motor (12), a cam mechanism (14) which converts a rotational motion of the motor (12) into a linear motion of an intake valve (2) by a cam (21), and a motor control apparatus (30) which controls the motor (12) such that an acceleration characteristic during a lift of the intake valve (2) changes in correspondence to a rotation number of an internal combustion engine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.