JPS63159760U - - Google Patents
Info
- Publication number
- JPS63159760U JPS63159760U JP5158387U JP5158387U JPS63159760U JP S63159760 U JPS63159760 U JP S63159760U JP 5158387 U JP5158387 U JP 5158387U JP 5158387 U JP5158387 U JP 5158387U JP S63159760 U JPS63159760 U JP S63159760U
- Authority
- JP
- Japan
- Prior art keywords
- platinum electrode
- contact
- oxygen sensor
- engine
- zirconia tube
- 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
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 5
- 239000001301 oxygen Substances 0.000 claims description 5
- 229910052760 oxygen Inorganic materials 0.000 claims description 5
- 239000011241 protective layer Substances 0.000 claims description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims 8
- 229910052697 platinum Inorganic materials 0.000 claims 4
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims 1
- 238000002485 combustion reaction Methods 0.000 claims 1
- 239000007789 gas Substances 0.000 claims 1
- 229910052763 palladium Inorganic materials 0.000 claims 1
Landscapes
- Measuring Oxygen Concentration In Cells (AREA)
Description
第１図は本考案の一実施例の酸素センサを示す
断面図、第２図は従来の酸素センサを示す断面図
、第３図は第２図の部分拡大図である。
２……ジルコニアチユーブ、１１……内側電極
、１２……外側電極、２１……保護層。
FIG. 1 is a sectional view showing an oxygen sensor according to an embodiment of the present invention, FIG. 2 is a sectional view showing a conventional oxygen sensor, and FIG. 3 is a partially enlarged view of FIG. 2. 2... Zirconia tube, 11... Inner electrode, 12... Outer electrode, 21... Protective layer.
Claims (1)
表面に白金電極をそれぞれ形成し、機関排気に接
触させた外表面の白金電極と大気に接触させた内
表面の白金電極との間に発生する起電力により機
関排気中の酸素濃度を検出する内燃機関用酸素セ
ンサにおいて、パラジウムとアルミナとを含んで
形成される保護層を前記ジルコニアチユーブの内
表面の白金電極を少なくとも覆うよう設けたこと
を特徴とする内燃機関用酸素センサ。 Platinum electrodes are formed on the inner and outer surfaces of a zirconia tube with a closed tip, and the electromotive force generated between the platinum electrode on the outer surface that is in contact with the engine exhaust and the platinum electrode on the inner surface that is in contact with the atmosphere An internal combustion engine oxygen sensor for detecting oxygen concentration in engine exhaust gas, characterized in that a protective layer containing palladium and alumina is provided to cover at least a platinum electrode on the inner surface of the zirconia tube. Engine oxygen sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5158387U JPS63159760U (en) | 1987-04-07 | 1987-04-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5158387U JPS63159760U (en) | 1987-04-07 | 1987-04-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63159760U true JPS63159760U (en) | 1988-10-19 |
Family
ID=30875982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5158387U Pending JPS63159760U (en) | 1987-04-07 | 1987-04-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63159760U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008501941A (en) * | 2004-06-05 | 2008-01-24 | ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング | Sensor element for measuring the physical properties of the measuring gas |
-
1987
- 1987-04-07 JP JP5158387U patent/JPS63159760U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008501941A (en) * | 2004-06-05 | 2008-01-24 | ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング | Sensor element for measuring the physical properties of the measuring gas |
| JP4691095B2 (en) * | 2004-06-05 | 2011-06-01 | ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング | Sensor element for measuring the physical properties of the measurement gas |
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