Electrode material for a spark plug
US8575830B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 23, 2012 |
| Grant date | Nov 5, 2013 |
| Priority date | — |
| Expiry date | Feb 24, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01T21/02
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electrode material that may be used in spark plugs and other ignition devices including industrial plugs, aviation igniters, glow plugs, or any other device that is used to ignite an air/fuel mixture in an engine. The electrode material is a metal composite and includes a particulate component embedded or dispersed within a matrix component such that the metal composite has a multi-phase microstructure. In one embodiment, the metal composite includes a matrix component that includes a precious metal and makes up about 2-80% wt of the overall composite and a particulate component that includes a ruthenium-based material and makes up about 20-98% wt of the overall composite.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.