Catalyst supported oxygen sensor element and a method of manufacturing same
US4297192A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 18, 1979 |
| Grant date | Oct 27, 1981 |
| Priority date | — |
| Expiry date | Dec 18, 1999 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N27/4077
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A catalyst supported oxygen sensor element detecting the oxygen concentration in exhaust gas from vehicle engines is composed of a tubular container of a solid ion-conductive electrolyte with the one end portion thereof closed, an inner electrode being positioned on the inner circumference of the container, an outer electrode being positioned on the outer circumference, a protective layer of a refractory material being provided on the outer circumference of the outer electrode, a catalyst layer being provided on the outer circumference of the protective layer, and optionally provided on the outer circumference of the catalyst layer, and a method of manufacturing the same.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.