Method and apparatus for electrically driving engine valves
US5327856A · kind A · utility
94Cited by
14References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 22, 1992 |
| Grant date | Jul 12, 1994 |
| Priority date | — |
| Expiry date | Dec 22, 2012 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01L9/22
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Each valve of an internal combustion engine is driven by a separate rotary electric motor. A cam mechanism for the valves comprises a cylindrical cam in line with the motor axis and the valve stem, the mechanism having inner and outer cylinders, one cylinder rotating with the motor and carrying a cam and the other containing a cam follower and reciprocating with the valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.