Gas sensor and method of manufacturing the same
US11313825B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 25, 2020 |
| Grant date | Apr 26, 2022 |
| Priority date | — |
| Expiry date | Aug 5, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N27/409
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A gas sensor (1) including a sensor element (10) and a separator (90) having an element hole (90 h), as viewed from one of a forward-end or a rear-end side in the axial direction. The separator has end surfaces (90 e) located axially farthest toward the one of the forward-end or the rear-end side, recess regions (90 h), (90 r 1) and (90 r 2) recessed from the end surfaces, and regions R1 and R2. First regions R1 are determined by eliminating a region SB occupied by the sensor element from a region SA defined by imaginary short-side lines and the outer edge of the separator. Second regions R2 are determined by eliminating the region SB from a region SC defined by imaginary long-side lines and the outer edge of the separator. S2/S1≥0.5 is satisfied, where S1 is the total area of R1 and R2, and S2 is the total area of the recess regions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.