Title:
GAS SENSOR
Document Type and Number:
WIPO Patent Application WO/2020/110872
Kind Code:
A1
Abstract:
A gas sensor (1) according to the present invention is provided with: a sensor element (2) that has a detection part (21) which is exposed to a gas (G) to be detected and an atmosphere introduction part (361) into which the atmosphere (A) is introduced; and an atmosphere cover (46) in which the atmosphere (A) to be introduced into the sensor element (2) is taken via a vent hole (461). An atmosphere path (460) within the atmosphere cover (46), said atmosphere path (460) being positioned between the vent hole (461) and the atmosphere introduction part (361), is provided with a two-layer atmosphere filter (5) which is composed of a first filter part that has a function of repelling the water in the atmosphere (A) and a second filter part that has a function of adsorbing a poisoning substance in the atmosphere (A).
Inventors:
SAWADA TAKASHI (JP)
Application Number:
PCT/JP2019/045534
Publication Date:
June 04, 2020
Filing Date:
November 21, 2019
Export Citation:
Assignee:
DENSO CORP (JP)
International Classes:
G01N27/409; G01N27/41; G01N27/416; G01N27/419
Foreign References:
| JP2009085940A | 2009-04-23 | |||
| JPH04215059A | 1992-08-05 | |||
| JP2010236940A | 2010-10-21 |
Attorney, Agent or Firm:
AICHI, TAKAHASHI, IWAKURA & ASSOCIATES (JP)
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