Title:
OXYGEN CONCENTRATION SENSOR
Document Type and Number:
WIPO Patent Application WO/2015/189975
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide an oxygen concentration sensor that is capable of easily and accurately measuring oxygen concentration in a high-temperature gas. This oxygen concentration sensor has a double-pipe structure having an outer pipe (201) and an inner pipe (202). The outer pipe (201) comprises: a first section (201A) arranged in a high-temperature environment and comprising a material having low thermal transmission properties; and a second section (201B) positioned outside the high-temperature environment and comprising a material having high thermal transmission properties. A sensor (208) is provided at a location at which gas that has passed through an annular flow path (210) between the outer pipe (201) and the inner pipe (202) flows into the inner pipe (202).
Inventors:
OGASAWARA KAZUHIKO (JP)
ABIKO TOMOKI (JP)
ABIKO TOMOKI (JP)
Application Number:
PCT/JP2014/065691
Publication Date:
December 17, 2015
Filing Date:
June 13, 2014
Export Citation:
Assignee:
NIPPON OIL PUMP CO LTD (JP)
International Classes:
G01N27/409; F23N1/02; F23N5/24; G01N1/22
Foreign References:
| JPS6363962A | 1988-03-22 | |||
| JPH08128928A | 1996-05-21 | |||
| JPH09281014A | 1997-10-31 | |||
| JPS6131369B2 | 1986-07-19 | |||
| JP2010210176A | 2010-09-24 | |||
| JP2004069104A | 2004-03-04 | |||
| JP2000088241A | 2000-03-31 |
Attorney, Agent or Firm:
Patent Corporate Body TAKAHASHI Office (JP)
Patent business corporation Takahashi patent firm (JP)
Patent business corporation Takahashi patent firm (JP)
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