Bi-directional power electronics circuit for electromechanical valve actuator of an internal combustion engine
US7036469B2 · kind B2 · utility
7Cited by
6References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 21, 2004 |
| Grant date | May 2, 2006 |
| Priority date | — |
| Expiry date | Jun 21, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F2007/1822
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A bi-directional dual coil half bridge converter adapted to be coupled to a dual coil actuator of a cylinder valve in an internal combustion engine is described. In one example, the converter has a first and second capacitor and a voltage source, where the converter is actuated via switches to individually energizing coils in said dual coil actuator. A voltage regulator is also shown for maintaining midpoint voltage during unequal loading of different actuator coils in the converter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.