Capacitor discharge ignition device for internal combustion engine
US6889677B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Feb 3, 2004 |
| Grant date | May 10, 2005 |
| Priority date | — |
| Expiry date | Feb 3, 2024 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02P11/025
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A capacitor discharge ignition device for an internal combustion engine including an ignition capacitor that is charged with a positive half cycle of an output voltage of an exciter coil, a thyristor that is triggered by a negative half cycle of an output voltage of the exciter coil when the internal combustion engine is ignited to discharge charges stored in the ignition capacitor through a primary coil of an ignition coil, and a reverse bias circuit that applies a reverse bias voltage between a gate and a cathode of the thyristor when a current flowing from the exciter coil through the thyristor is detected and when a charging current of the ignition capacitor is detected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.