Ignition coil
US5241941A · kind A · utility
12Cited by
16References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 3, 1992 |
| Grant date | Sep 7, 1993 |
| Priority date | — |
| Expiry date | Sep 3, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F38/12
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An ignition coil having annular 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 a C-shaped iron core surrounding the primary and secondary coil assembly and assuring the elimination of any air gap between the C-shaped iron core and the central core member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.