Ignition distributor electrode for suppressing radio frequency interference
US4165452A · kind A · utility
3Cited by
7References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 9, 1978 |
| Grant date | Aug 21, 1979 |
| Priority date | — |
| Expiry date | Jan 9, 1998 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H9/30
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An ignition distributor for an internal combustion engine is provided with a novel rotor electrode which substantially reduces radio frequency interference generated by spark discharges across the rotor gap. At least the tip segment of the rotor electrode is formed of a composite material consisting of a dielectric phase interspersed with a conductive metal phase. In operation, the dielectric phase protrudes from the surface of the electrode promoting ionization in the rotor gap so that electrical discharge occurs at voltages where radio frequency signal production is substantially suppressed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.