Electromagnet-equipped control device for an internal combustion engine valve
US7798110B2 · kind B2 · utility
0Cited by
7References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 27, 2005 |
| Grant date | Sep 21, 2010 |
| Priority date | — |
| Expiry date | Jan 28, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F7/1638
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention pertains to a device for controlling the opening and closing of an internal combustion engine valve. This device is characterized in that the magnetic circuit of the electromagnet and/or the plate contains a magnetic material having a remnant magnetization (Fp) when the valve is in position, the remnant magnetization (Fp) being reversible so as to be cancelled when the valve changes position and having a coercive field strength in the range of 10 Oe to 600 Oe.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.