Capacitor ignition systems
US4949696A · kind A · utility
4Cited by
15References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 7, 1989 |
| Grant date | Aug 21, 1990 |
| Priority date | — |
| Expiry date | Apr 7, 2009 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02P1/086
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Capacitor ignition systems for internal combustion engines in which a charging winding forms part of an ignition coil and a primary winding is connected in circuit with the charging winding to contribute to capacitor charging. In one embodiment, the secondary winding is also connected in circuit with the charging winding which contributes to development of an output voltage. Circuit components are provided for insuring a high output voltage while protecting a charging diode against excessive inverse voltage during ignition and for protecting the gate of a thyristor switch from an excessive negative voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.