Ignition coil
US6873238B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 19, 2003 |
| Grant date | Mar 29, 2005 |
| Priority date | — |
| Expiry date | May 27, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F2038/125
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An ignition coil has a connector electrically connected to an external circuit, an igniter for accommodating a switching element adapted to cause a current supplied from the connector to be intermittent, a primary coil portion for generating a predetermined voltage by the intermittent current, a secondary coil portion for stepping up the generated voltage and applying the resulting voltage to an ignition plug, and a resin insulating material which hardens in between the primary coil portion and the secondary coil portion to ensure insulation between the primary coil portion and the secondary coil portion. An outer shell of the igniter is formed of the resin insulating material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.