Ceramic heater
US4475029A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 1, 1983 |
| Grant date | Oct 2, 1984 |
| Priority date | — |
| Expiry date | Mar 1, 2003 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23Q7/001
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A ceramic heating element is held in a metal housing to be mounted on an internal combustion engine, so that the heating element is operated as a glow plug for igniting an air-fuel mixture. The ceramic heating element is formed of an electrode section housed in the housing and a heat generating section extending out of the housing, whereby the heat generating section is exposed to the mixture in an engine cylinder. The electrode and heat generating sections are divided into two portions, respectively, and both forward ends of divided heat generating portions are connected with each other, so that electric current flows from one of the electrode portions through the divided heat generating portions to the other electrode portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.