High-power breakdown spark plugs and related methods
US10277013B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 23, 2016 |
| Grant date | Apr 30, 2019 |
| Priority date | — |
| Expiry date | Nov 16, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01T21/02
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A spark plug includes an insulator body and a central electrode having a spark-end and a terminal-end. The central electrode is disposed within the insulator body, with the spark-end and the terminal-end protruding from the insulator body at opposite ends thereof. A metal electrode surrounds the insulator body and extends to form a gap with the central electrode at the spark-end. A capacitor with metalized inner and outer surfaces is provided, with the metalized inner surface being connected to the central electrode and the metalized outer surface being connected to the metal electrode. A first resistive component is embedded within the central electrode between the capacitor and the terminal-end, and a second resistive component embedded within the central electrode between the capacitor and the spark-end.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.