Valve-driving system of internal combustion engine
US7267088B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 3, 2003 |
| Grant date | Sep 11, 2007 |
| Priority date | — |
| Expiry date | Apr 10, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A valve-driving system which is applied to an internal combustion engine having a plurality of cylinders for driving an intake or exhaust valve provided in each cylinder, including a plurality of valve-driving apparatuses provided for driving valves of different cylinders of the internal combustion engine, wherein each valve-driving apparatus includes an electrical motor as a driving source for generating rotation motion; and a power transmission mechanism for converting the rotation motion of the electric motor into opening and closing motion of the valve to be driven and for transmitting the opening and closing motion to the valve through a cam or a link.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.