Exhaust gas sensor
US9297779B2 · kind B2 · utility
0Cited by
2References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 24, 2013 |
| Grant date | Mar 29, 2016 |
| Priority date | — |
| Expiry date | Jul 24, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N27/4077
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An exhaust gas sensor (100) is configured to detect an oxygen concentration or air-fuel ratio in exhaust gas of an internal combustion engine. The exhaust gas sensor includes a sensor element (10) and a glass coating film (20). The sensor element is configured to detect an oxygen concentration or air-fuel ratio in the exhaust gas sensor. The glass coating film (20) is formed on at least part of a surface of the sensor element and capable of absorbing a Mn component contained in the exhaust gas at 700° C. The internal combustion engine uses a fuel having a Mn concentration in excess of 20 ppm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.