Low-voltage type igniter plug having semi-conductor structure for use in jet and other internal combustion engines
US4973877A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 5, 1989 |
| Grant date | Nov 27, 1990 |
| Priority date | — |
| Expiry date | Jun 5, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01T13/52
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A low-voltage type igniter plug having semi-conductor structure for use in jet and other internal combustion engines comprising; the semi-conducting body mounted adjacent a spark-gap in electrically contact with both center and ground electrodes, and essentially consisting of silicon carbide particles less than 5 microns in average diameter, and alumina particles less than 1 micron in average diameter, the weight percentages of the silicon carbide particles ranging from 65 to 80, the weight percentages of the alumina particles ranging from 20 to 35, the silicon carbide particles and the alumina particles being mixed with an addition of suitable binder means, and hot pressed at the temperature above 1800 degrees Celsius, and at the pressure above 200 Kg/cm.sup.2.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.