JPS6439545A - Exhaust gas sensor - Google Patents
Exhaust gas sensorInfo
- Publication number
- JPS6439545A JPS6439545A JP62196972A JP19697287A JPS6439545A JP S6439545 A JPS6439545 A JP S6439545A JP 62196972 A JP62196972 A JP 62196972A JP 19697287 A JP19697287 A JP 19697287A JP S6439545 A JPS6439545 A JP S6439545A
- Authority
- JP
- Japan
- Prior art keywords
- diffusion chamber
- catalyst layer
- nox
- solid electrolyte
- exhaust gas
- 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.)
- Granted
Links
Landscapes
- Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
Abstract
PURPOSE:To enable the operation control which improves the output of an engine, reduces the fuel cost thereof and decreases the amt. of the NOx to be generated by providing an oxygen sensor having an oxidizing catalyst layer and an oxygen sensor having a ternary catalyst layer in a diffusion chamber. CONSTITUTION:The diffusion chamber 13 into which an exhaust gas is introduced through an introducing port 12 is formed on the inside of a solid electrolyte 14 and electrodes 2, 4 consisting of platinum are provided on both sides of the solid electrolyte 14 to the inside and outside of the diffusion chamber 13. Electrodes 6, 9 and 8, 10 consisting of platinum existing on both sides of the solid electrolyte 14 are formed to the diffusion chamber 13 and an atmospheric air introducing hole 11 to constitute the oxygen sensor which detects the oxygen concn. in the diffusion chamber 13 by the electromotive voltage generated between the respective electrodes. The porous oxidizing catalyst layer 5 is coated on the electrode 6 and the porous ternary catalyst layer 7 having a reduction effect to NOx is coated on the electrode 8. Positive and negative pumping currents are supplied to a pump section 1 in such a manner that the outputs of the respective oxygen sensors attain the specified reference values. An air-fuel ratio and the content of the NOx in the exhaust gas are calculated by a computing means according to these pumping current values.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62196972A JP2554661B2 (en) | 1987-08-06 | 1987-08-06 | Exhaust gas sensor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62196972A JP2554661B2 (en) | 1987-08-06 | 1987-08-06 | Exhaust gas sensor |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6439545A true JPS6439545A (en) | 1989-02-09 |
JP2554661B2 JP2554661B2 (en) | 1996-11-13 |
Family
ID=16366709
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62196972A Expired - Lifetime JP2554661B2 (en) | 1987-08-06 | 1987-08-06 | Exhaust gas sensor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2554661B2 (en) |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0769693A1 (en) | 1995-10-20 | 1997-04-23 | Ngk Insulators, Ltd. | Method and sensing device for measuring predetermined gas component in measurement gas |
US5948964A (en) * | 1995-10-20 | 1999-09-07 | Ngk Insulators, Ltd. | NOx sensor and method of measuring NOx |
US5985118A (en) * | 1996-10-31 | 1999-11-16 | Nippon Soken, Inc. | Solid electrolyte gas concentration detector |
US6196053B1 (en) | 1994-04-21 | 2001-03-06 | Ngk Insulators, Ltd. | Method of measuring a gas component and sensing device for measuring the gas component |
US6205843B1 (en) | 1998-11-16 | 2001-03-27 | Denso Corporation | Gas sensing element and a method for measuring a specific gas concentration |
US6214208B1 (en) | 1996-12-02 | 2001-04-10 | Ngk Spark Plug Co., Ltd. | Method and apparatus for measuring NOx gas concentration |
US6290829B1 (en) | 1997-07-14 | 2001-09-18 | Ngk Insulators, Ltd. | Gas sensor |
US6375828B2 (en) | 1997-03-21 | 2002-04-23 | Ngk Spark Plug Co., Ltd. | Methods and apparatus for measuring NOx gas concentration, for detecting exhaust gas concentration and for calibrating and controlling gas sensor |
US6401522B1 (en) | 1999-09-22 | 2002-06-11 | Ngk Insulators, Ltd. | Gas analyzer and method of calibrating the same |
EP1231465A2 (en) | 2001-02-08 | 2002-08-14 | Denso Corporation | Gas sensor element with sensor cell and oxygen monitor at substantially the same location in the gas flow |
WO2003036282A3 (en) * | 2001-10-23 | 2003-10-09 | Bosch Gmbh Robert | Sensor element and method for determining nitrogen oxides |
US6695964B1 (en) | 1996-12-02 | 2004-02-24 | Ngk Spark Plug Co., Ltd. | Method and apparatus for measuring NOx gas concentration |
US6921883B2 (en) | 2001-03-09 | 2005-07-26 | Ngk Insulators, Ltd. | Gas sensor and method of heating the same |
EP1710568A2 (en) | 1994-04-21 | 2006-10-11 | Ngk Insulators, Ltd. | Method of measuring a gas component and sensing device for measuring the gas component |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5033892A (en) * | 1973-07-24 | 1975-04-01 | ||
JPS61153561A (en) * | 1984-12-27 | 1986-07-12 | Japan Electronic Control Syst Co Ltd | Oxygen sensor |
JPS6338154A (en) * | 1986-08-04 | 1988-02-18 | Ngk Insulators Ltd | Nox sensor |
-
1987
- 1987-08-06 JP JP62196972A patent/JP2554661B2/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5033892A (en) * | 1973-07-24 | 1975-04-01 | ||
JPS61153561A (en) * | 1984-12-27 | 1986-07-12 | Japan Electronic Control Syst Co Ltd | Oxygen sensor |
JPS6338154A (en) * | 1986-08-04 | 1988-02-18 | Ngk Insulators Ltd | Nox sensor |
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6196053B1 (en) | 1994-04-21 | 2001-03-06 | Ngk Insulators, Ltd. | Method of measuring a gas component and sensing device for measuring the gas component |
EP2270484A1 (en) | 1994-04-21 | 2011-01-05 | NGK Insulators, Ltd. | Electrochemical NOx sensor |
EP1710568A2 (en) | 1994-04-21 | 2006-10-11 | Ngk Insulators, Ltd. | Method of measuring a gas component and sensing device for measuring the gas component |
US5948964A (en) * | 1995-10-20 | 1999-09-07 | Ngk Insulators, Ltd. | NOx sensor and method of measuring NOx |
EP0769693A1 (en) | 1995-10-20 | 1997-04-23 | Ngk Insulators, Ltd. | Method and sensing device for measuring predetermined gas component in measurement gas |
US5985118A (en) * | 1996-10-31 | 1999-11-16 | Nippon Soken, Inc. | Solid electrolyte gas concentration detector |
US6695964B1 (en) | 1996-12-02 | 2004-02-24 | Ngk Spark Plug Co., Ltd. | Method and apparatus for measuring NOx gas concentration |
US6214208B1 (en) | 1996-12-02 | 2001-04-10 | Ngk Spark Plug Co., Ltd. | Method and apparatus for measuring NOx gas concentration |
US6375828B2 (en) | 1997-03-21 | 2002-04-23 | Ngk Spark Plug Co., Ltd. | Methods and apparatus for measuring NOx gas concentration, for detecting exhaust gas concentration and for calibrating and controlling gas sensor |
US6743352B2 (en) | 1997-03-21 | 2004-06-01 | Ngk Spark Plug Co., Ltd. | Method and apparatus for correcting a gas sensor response for moisture in exhaust gas |
US6290829B1 (en) | 1997-07-14 | 2001-09-18 | Ngk Insulators, Ltd. | Gas sensor |
US6205843B1 (en) | 1998-11-16 | 2001-03-27 | Denso Corporation | Gas sensing element and a method for measuring a specific gas concentration |
US6401522B1 (en) | 1999-09-22 | 2002-06-11 | Ngk Insulators, Ltd. | Gas analyzer and method of calibrating the same |
EP1231465A2 (en) | 2001-02-08 | 2002-08-14 | Denso Corporation | Gas sensor element with sensor cell and oxygen monitor at substantially the same location in the gas flow |
US6921883B2 (en) | 2001-03-09 | 2005-07-26 | Ngk Insulators, Ltd. | Gas sensor and method of heating the same |
WO2003036282A3 (en) * | 2001-10-23 | 2003-10-09 | Bosch Gmbh Robert | Sensor element and method for determining nitrogen oxides |
Also Published As
Publication number | Publication date |
---|---|
JP2554661B2 (en) | 1996-11-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EXPY | Cancellation because of completion of term |