JPS60134157U - Oxygen sensor for internal combustion engines - Google Patents
Oxygen sensor for internal combustion enginesInfo
- Publication number
- JPS60134157U JPS60134157U JP2170284U JP2170284U JPS60134157U JP S60134157 U JPS60134157 U JP S60134157U JP 2170284 U JP2170284 U JP 2170284U JP 2170284 U JP2170284 U JP 2170284U JP S60134157 U JPS60134157 U JP S60134157U
- Authority
- JP
- Japan
- Prior art keywords
- internal combustion
- oxygen sensor
- combustion engine
- electrode
- 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.)
- Pending
Links
Landscapes
- Measuring Oxygen Concentration In Cells (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来の酸素センサのセンサ部を示す断面図、第
２図は第１図のＡ部拡大図、第３図は本考案の一実施例
を示す要部拡大断面図、第４図は機関運転時間に対する
空燃比のリーンからリッチへの応答時間変化の実験デー
タを示すグラフ、第５図は機関運転時間に対する１０モ
一ド走行運転時のＣＯの排出量の変化の実験データを示
すグラフである。
１１・・・セラミック管、１２・・・外表面側の白金電
極、１３・・・内表面側の白金電極、１４・・・電極保
護層、１５・・・鉛トラップ層。Fig. 1 is a sectional view showing the sensor part of a conventional oxygen sensor, Fig. 2 is an enlarged view of part A in Fig. 1, Fig. 3 is an enlarged sectional view of the main part showing an embodiment of the present invention, and Fig. 4 Figure 5 is a graph showing experimental data on changes in air-fuel ratio response time from lean to rich versus engine operating time, and Figure 5 shows experimental data on changes in CO emissions during 10 mode driving versus engine operating time. It is a graph. DESCRIPTION OF SYMBOLS 11... Ceramic tube, 12... Platinum electrode on the outer surface side, 13... Platinum electrode on the inner surface side, 14... Electrode protective layer, 15... Lead trap layer.
Claims (3)
電極を被膜し、内燃機関の排気中に接触させた外表面側
の電極と大気中に接触させた内表面側の電極との間に発
生する起電力により排気中の酸素濃度を検出するように
した内燃機関用酸素センサにおいて、前記外表面側の白
金電極を多孔質状の電極保護層を介して覆い、排気中、
に含まれる鉛分を捕集する鉛トラップ層を設けた
ことを特徴とする内燃機関用酸素センサ。(1) Platinum electrodes are coated on the inner and outer surfaces of a ceramic tube with a closed end, and between the electrode on the outer surface that is in contact with the exhaust gas of an internal combustion engine and the electrode on the inner surface that is in contact with the atmosphere. In an oxygen sensor for an internal combustion engine that detects the oxygen concentration in exhaust gas by the generated electromotive force, the platinum electrode on the outer surface side is covered with a porous electrode protective layer, and the oxygen concentration in the exhaust gas is
An oxygen sensor for an internal combustion engine, characterized in that it is provided with a lead trap layer that collects lead contained in the oxygen sensor.
録請求の範囲第１項記載の内燃機関用酸素センサ。(2) The oxygen sensor for an internal combustion engine according to claim 1, wherein the lead trap layer is made of platinum.
成されてなる実用新案登録請求の範囲第１項記載の内燃
機関用酸素センサ。(3) The oxygen sensor for an internal combustion engine according to claim 1, wherein the lead trap layer is formed of sulfur or a sulfur compound.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2170284U JPS60134157U (en) | 1984-02-20 | 1984-02-20 | Oxygen sensor for internal combustion engines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2170284U JPS60134157U (en) | 1984-02-20 | 1984-02-20 | Oxygen sensor for internal combustion engines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60134157U true JPS60134157U (en) | 1985-09-06 |
Family
ID=30513335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2170284U Pending JPS60134157U (en) | 1984-02-20 | 1984-02-20 | Oxygen sensor for internal combustion engines |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60134157U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62187245A (en) * | 1986-02-14 | 1987-08-15 | Japan Electronic Control Syst Co Ltd | Oxygen sensor |
-
1984
- 1984-02-20 JP JP2170284U patent/JPS60134157U/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62187245A (en) * | 1986-02-14 | 1987-08-15 | Japan Electronic Control Syst Co Ltd | Oxygen sensor |
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