Glow plug with construction for minimizing heat transfer between interior pole and PTC regulating element
US5521356A · kind A · utility
10Cited by
10References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 8, 1993 |
| Grant date | May 28, 1996 |
| Priority date | — |
| Expiry date | Jun 8, 2013 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23Q7/001
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A glow plug having an interior pole and a glow tube with a tip portion, a heating element located in the tip portion, and a regulating element, formed of an electrically conductive material having positive temperature-resistance coefficients, arranged in the glow tube. The interior pole of the glow plug is serially connected with the regulating element, the regulating element is serially connected to the heating element, and the heating element is serially connected with the glow tube tip in a construction for minimizing heat transfer between the regulating element and the interior pole.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.