Gas sensor
US10429339B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 9, 2015 |
| Grant date | Oct 1, 2019 |
| Priority date | — |
| Expiry date | May 8, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N33/0036
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A gas sensor includes a solid electrolyte body provided with a measured gas side electrode and a reference gas side electrode, a heater in the solid electrolyte body, a housing for holding the solid electrolyte body therein, and a cover for covering the solid electrolyte body. The cover has a large-diameter cover portion positioned on an outer circumferential side of the solid electrolyte body, a small-diameter cover portion positioned adjacent to a tip side of the large-diameter cover portion and formed smaller than the large-diameter cover portion, and a stepped portion connecting the small-diameter cover portion and the large-diameter cover portion. A first through hole is formed at a tip of the small-diameter cover portion. A second through hole is formed at a plurality of positions in a circumferential direction of the stepped portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.