Spark blanking apparatus for an internal combustion engine
US6237555A · kind A · utility
14Cited by
33References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 29, 2000 |
| Grant date | May 29, 2001 |
| Priority date | — |
| Expiry date | Sep 29, 2020 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02P7/0631
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A spark prevention apparatus during the exhaust stroke of a four-stroke-cycle internal combustion engine is claimed. A valve operating assembly operates an intake or an exhaust valve. A switch is electrically connected to a primary winding of the engine and actuated by the valve operating assembly such that either the primary winding is electrically connected to ground during the exhaust stroke or the primary winding is electrically connected to an energy storage device during the exhaust stroke.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.