JPS6432162A - Air-fuel ratio sensor with heater - Google Patents
Air-fuel ratio sensor with heaterInfo
- Publication number
- JPS6432162A JPS6432162A JP62187576A JP18757687A JPS6432162A JP S6432162 A JPS6432162 A JP S6432162A JP 62187576 A JP62187576 A JP 62187576A JP 18757687 A JP18757687 A JP 18757687A JP S6432162 A JPS6432162 A JP S6432162A
- Authority
- JP
- Japan
- Prior art keywords
- heater
- spacing
- air
- fuel ratio
- electrode
- 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
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
PURPOSE:To eliminate the influence generated by the rate determination of gas diffusion on the detection of an air-fuel ratio and to widen the detection range of the air-fuel ratio by constituting the inside surface of a zirconia solid electrolyte to a tapered shape so that a spacing with a heater is sufficiently provided. CONSTITUTION:A platinum electrode 2 to come into contact with an exhaust gas is provided on the inside surface of the solid electrolyte having a bag tubular shape and a platinum electrode 3 to come into contact with the atmospheric air is provided on the outside surface. The bar-shaped heater 5 consisting of ceramics is inserted into the electrolyte 1. The inside surface of the electrolyte 1 is tapered from the aperture near to the electrode 3 so that the sufficient spacing from the heater 5 is obtd.; in addition, a parallel part to diminish the spacing with the heater 5 is provided on the part of the electrode 3 so that the temp. stability of the detecting part is obtd. The rate determination of the gas diffusion in this spacing is prevented by increasing the spacing between the solid electrolyte 1 and the heater 1 in such a manner, by which the sufficient amt. of oxygen can be supplied from the atm. side into the bag tube and the detection range of the air-fuel ratio particularly in a rich region is widened.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62187576A JPS6432162A (en) | 1987-07-29 | 1987-07-29 | Air-fuel ratio sensor with heater |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62187576A JPS6432162A (en) | 1987-07-29 | 1987-07-29 | Air-fuel ratio sensor with heater |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6432162A true JPS6432162A (en) | 1989-02-02 |
Family
ID=16208519
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62187576A Pending JPS6432162A (en) | 1987-07-29 | 1987-07-29 | Air-fuel ratio sensor with heater |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6432162A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0663711A (en) * | 1992-08-17 | 1994-03-08 | Shinagawa Refract Co Ltd | Fine nozzle refractories for continuous casting |
-
1987
- 1987-07-29 JP JP62187576A patent/JPS6432162A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0663711A (en) * | 1992-08-17 | 1994-03-08 | Shinagawa Refract Co Ltd | Fine nozzle refractories for continuous casting |
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