Gas sensor
US5922938A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 5, 1996 |
| Grant date | Jul 13, 1999 |
| Priority date | — |
| Expiry date | Nov 5, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N27/4078
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention relates to a gas sensor, preferably a lambda probe for determining pollutant and/or oxygen content in the exhaust of internal combustion engines or furnaces, with a metal housing that has mounting means for installing the gas sensor in an exhaust chamber, a ceramic part located inside the metal housing to receive a sensor support with sensor elements, one end of which projects into the exhaust chamber and whose other end is connectable with electrical terminals, characterized in that the ceramic part, in its area away from the exhaust, is secured by a positive connection in at least the radial direction in a metal housing and a sealing element is provided in an area of the ceramic part located downstream from the positive connection, said element being connected firstly with the outside wall of the ceramic part and secondly abutting a wall of the metal housing in a gas-tight manner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.