Ignition coil assembly utilizing a single internal floating shield buffered at one end
US7049923B2 · kind B2 · utility
2Cited by
10References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 3, 2004 |
| Grant date | May 23, 2006 |
| Priority date | — |
| Expiry date | Sep 16, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F27/36
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An ignition apparatus includes a core formed of magnetically-permeable material extending along a main axis, a primary winding disposed about the core, a secondary winding disposed on a secondary winding spool wherein at least one of the secondary winding leads is connected to a high-voltage connector terminal configured for connection to a spark plug, a case formed of electrical insulating material, and a magnetically-permeable shield disposed inwardly of the case and allowed to electrically float with respect to ground and a power source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.