Plasma spark plug for an internal combustion engine
US7777401B2 · kind B2 · utility
6Cited by
8References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 29, 2006 |
| Grant date | Aug 17, 2010 |
| Priority date | — |
| Expiry date | Oct 25, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01T13/44
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An essentially-elongated spark plug for an internal combustion engine of a motor vehicle, including: an essentially-capacitive lower part including two coaxial electrodes; an essentially-inductive upper part including a central mandrel, a coaxial winding around the mandrel, and an external tubular casing that serves as electromagnetic armor; and an insulant disposed radially between the casing and the winding. The essentially-inductive upper part includes a second internal casing of electromagnetic armor, which is disposed radially between the insulant and the external casing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.