JPS5690256A - Oxygen density detector for exhaust gas of automobile - Google Patents
Oxygen density detector for exhaust gas of automobileInfo
- 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
Links
Landscapes
- 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
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)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5372686A (en) * | 1976-12-09 | 1978-06-28 | Nippon Denso Co Ltd | Oxygen concentration detector |
-
1979
- 1979-12-24 JP JP16877779A patent/JPS5690256A/en active Pending
Patent Citations (1)
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)
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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