Ignition coil
US9812248B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 15, 2015 |
| Grant date | Nov 7, 2017 |
| Priority date | — |
| Expiry date | Jan 22, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F2005/025
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An ignition coil for delivering a spark-generating current to a spark plug includes a magnetically-permeable core; a primary winding disposed outward of the core; and a secondary winding radially surrounding the primary winding and inductively coupled to the primary winding, the secondary winding having a low-voltage end and a high-voltage end. The secondary winding includes a secondary winding first section proximal to the low-voltage end and having a first thickness. The secondary winding also includes a secondary winding second section proximal to the high-voltage end and having a second thickness that is less than the first thickness of the secondary winding first section.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.