Gas sensor
US7758736B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 27, 2007 |
| Grant date | Jul 20, 2010 |
| Priority date | — |
| Expiry date | Jul 16, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N27/4077
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A detecting element (10) of a gas sensor (1) is held with a detecting portion (11) projecting from a front-end engaging-portion (56) of a metallic shell (50) and is accommodated for protection in an inner protector (120) in a gas detection chamber (129). Exhaust gas introduced into the gas detection chamber (129) is exhausted through an exhaust hole (160). The exhaust hole is formed by cutting off a portion of a side wall (127) of a recess portion (125), which is formed by pressing inward a portion between two slits formed in a front end wall (124). A bottom wall (126) of the recess portion (125) is located frontward of the detecting element (10) with respect to the direction of an axis O, thereby preventing a water droplet which comes flying from the outside from directly contacting the detecting element (10).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.