JPS5690256A - Oxygen density detector for exhaust gas of automobile - Google Patents

Oxygen density detector for exhaust gas of automobile

Info

Publication number
JPS5690256A
JPS5690256A JP16877779A JP16877779A JPS5690256A JP S5690256 A JPS5690256 A JP S5690256A JP 16877779 A JP16877779 A JP 16877779A JP 16877779 A JP16877779 A JP 16877779A JP S5690256 A JPS5690256 A JP S5690256A
Authority
JP
Japan
Prior art keywords
electrode
leg part
layer
gas
density
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP16877779A
Other languages
Japanese (ja)
Inventor
Masaya Fujimoto
Masatoshi Suzuki
Masami Kise
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Denso Corp
Original Assignee
NipponDenso Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NipponDenso Co Ltd filed Critical NipponDenso Co Ltd
Priority to JP16877779A priority Critical patent/JPS5690256A/en
Publication of JPS5690256A publication Critical patent/JPS5690256A/en
Pending legal-status Critical Current

Links

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  • Measuring Oxygen Concentration In Cells (AREA)

Abstract

PURPOSE: To measure the density of O2 accurately and thereby perform control of the air-fuel ratio of a mixture gas supplied by providing a porous ceramic layer and a porous catalyst layer on the detection side in the leg part of a detecting element and by bringing the reaction on the surface of an electrode on the side of the detected gas to the state of chemical equilibrium in a short time.
CONSTITUTION: The electrode 2 on the side of the detected gas of the leg part 1b projecting into the exhaust pipe of the O2 density detecting element 1 of the detector for the density of O2 in the exhaust gas is formed of film-shaped porous Pt or the like. On the surface of the electrode 2 the porous ceramic layer 4 is formed of MgO.Al2O3 or the like and then on the layer 4 is provided a part of the leg part 1b, composing 30W75% of the whole surface area thereof, in such a manner that it covers the element 1 from the closing end of the leg part toward the opening of the element 1. Next, on the layer 4 is formed the porous catalyst layer 5 prepared by making an alumina carrier bear Pt-Rh. Since the reaction of the constituents of the gas can be brought rapidly to the chemical equilibrium on the surface of the electrode 2 on the side of the detected gas by this constitution, the detection is performed accurately without the divergence of a characteristic curve of electromotive force from an expected position.
COPYRIGHT: (C)1981,JPO&Japio
JP16877779A 1979-12-24 1979-12-24 Oxygen density detector for exhaust gas of automobile Pending JPS5690256A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16877779A JPS5690256A (en) 1979-12-24 1979-12-24 Oxygen density detector for exhaust gas of automobile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16877779A JPS5690256A (en) 1979-12-24 1979-12-24 Oxygen density detector for exhaust gas of automobile

Publications (1)

Publication Number Publication Date
JPS5690256A true JPS5690256A (en) 1981-07-22

Family

ID=15874262

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16877779A Pending JPS5690256A (en) 1979-12-24 1979-12-24 Oxygen density detector for exhaust gas of automobile

Country Status (1)

Country Link
JP (1) JPS5690256A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01153953A (en) * 1987-12-11 1989-06-16 Ngk Spark Plug Co Ltd Element for oxygen sensor
FR2649577A1 (en) * 1989-06-23 1991-01-11 Hiverlet Franck METHODS FOR GENERATING PLASMA AND FOR PRODUCING OZONE, METHODS OF IGNITION AND DEPOLLUTION, AND DEVICE RELATING THEREOF
US5271816A (en) * 1988-11-18 1993-12-21 Mitsubishi Jidosha Kogyo Kabushiki Kaisha Oxygen sensor
US5362651A (en) * 1992-07-27 1994-11-08 Ford Motor Company Carbon monoxide selective sensor and method of its use
JP2010151575A (en) * 2008-12-25 2010-07-08 Denso Corp Gas sensor element and gas sensor incorporating the same
CN103424453A (en) * 2012-05-24 2013-12-04 日本特殊陶业株式会社 Gas sensor

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5372686A (en) * 1976-12-09 1978-06-28 Nippon Denso Co Ltd Oxygen concentration detector

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5372686A (en) * 1976-12-09 1978-06-28 Nippon Denso Co Ltd Oxygen concentration detector

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01153953A (en) * 1987-12-11 1989-06-16 Ngk Spark Plug Co Ltd Element for oxygen sensor
US5271816A (en) * 1988-11-18 1993-12-21 Mitsubishi Jidosha Kogyo Kabushiki Kaisha Oxygen sensor
FR2649577A1 (en) * 1989-06-23 1991-01-11 Hiverlet Franck METHODS FOR GENERATING PLASMA AND FOR PRODUCING OZONE, METHODS OF IGNITION AND DEPOLLUTION, AND DEVICE RELATING THEREOF
US5362651A (en) * 1992-07-27 1994-11-08 Ford Motor Company Carbon monoxide selective sensor and method of its use
JP2010151575A (en) * 2008-12-25 2010-07-08 Denso Corp Gas sensor element and gas sensor incorporating the same
US8834693B2 (en) 2008-12-25 2014-09-16 Denso Corporation Gas sensor element and gas sensor including the same
CN103424453A (en) * 2012-05-24 2013-12-04 日本特殊陶业株式会社 Gas sensor
JP2014002130A (en) * 2012-05-24 2014-01-09 Ngk Spark Plug Co Ltd Gas sensor
US9395325B2 (en) 2012-05-24 2016-07-19 Ngk Spark Plug Co., Ltd. Gas sensor

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