Ignition coil
US5335642A · kind A · utility
10Cited by
19References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 23, 1993 |
| Grant date | Aug 9, 1994 |
| Priority date | — |
| Expiry date | Jun 23, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F38/12
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An ignition coil having primary and secondary coils, the primary coil wound around a central core member and including a permanent magnet made of a magnetic material that is less than fully dense, and is interposed between one end of the central core member and one end of an outer core surrounding the primary and secondary coil assembly and assuring the elimination of any air gap between the iron core and the central core member. The ignition coil further having a common modular design for a slip-in fit into differing modular housing designs depending upon the number of cylinders in the engine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.