Spark plug having titanium diboride electrodes
US5493171A · kind A · utility
26Cited by
6References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 5, 1994 |
| Grant date | Feb 20, 1996 |
| Priority date | — |
| Expiry date | Oct 5, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01T13/39
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A spark plug for use in an internal combustion engine comprises an electrically nonconductive body member and a pair of electrodes formed of a material each having titanium diboride as its major component. Tests indicate that titanium diboride electrodes are extremely resistant to electrical erosion. The spark plugs embodying the present invention are particularly useful in continuous cycle or heavy duty cycle engines that have heretofore been the subject of severe electrode erosion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.