Ignition coil, in particular for an internal combustion engine of an automotive vehicle, and means for retaining the primary assembly within the secondary assembly of such a coil
US5015984A · kind A · utility
14Cited by
2References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 18, 1990 |
| Grant date | May 14, 1991 |
| Priority date | — |
| Expiry date | Apr 18, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F2005/025
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An ignition coil comprises at least one magnetic assembly, each of which has a central magnetic core, around which two formers, namely a primary and a secondary former, are arranged coaxially. The formers carry the primary and secondary windings respectively, and the magnetic assembly further includes retaining means adapted to position and secure the primary former within the secondary former. These retaining means comprise steps formed integrally in a tubular cavity of the secondary former and cooperating with one of the end plates of the primary former.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.