Multi-layer ceramic heater element and method of making same
US6184497A · kind A · utility
15Cited by
7References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 30, 1999 |
| Grant date | Feb 6, 2001 |
| Priority date | — |
| Expiry date | Sep 30, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B2203/027
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A ceramic heater element and a glow plug incorporating the novel heater element. The heater element has a base portion and a heater portion. Conductive, insulative and resistive layers extend through both the base and heater portions. An outer conductive layer is applied to the outside of the base portion to provide a highly conductive return path. This tends to limit the heating of the resistive layer in the base portion and results in better and more reliable heat concentration in the heater portion. The heater element can be assembled to form a glow plug for a diesel engine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.