JPH0421958U - - Google Patents
Info
- Publication number
- JPH0421958U JPH0421958U JP6278790U JP6278790U JPH0421958U JP H0421958 U JPH0421958 U JP H0421958U JP 6278790 U JP6278790 U JP 6278790U JP 6278790 U JP6278790 U JP 6278790U JP H0421958 U JPH0421958 U JP H0421958U
- Authority
- JP
- Japan
- Prior art keywords
- side electrode
- engine
- contact
- metal washer
- output extraction
- 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
- 238000000605 extraction Methods 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims 2
- 239000001301 oxygen Substances 0.000 claims 2
- 229910052760 oxygen Inorganic materials 0.000 claims 2
- 238000002485 combustion reaction Methods 0.000 claims 1
- 239000007789 gas Substances 0.000 claims 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
Landscapes
- Measuring Oxygen Concentration In Cells (AREA)
Description
第１図は本考案の一実施例を示すセンサ部断面
図、第２図は同上実施例に係るワツシヤの断面図
、第３図は従来例を示すセンサ全体断面図、第４
図は第３図におけるセンサ部断面図である。
１……ホルダー、２……ジルコニアチユーブ、
１１……内側電極（出力取出用）、１２……外側
電極（接地側）、２３……コンタクトプレート、
４０……金属ワツシヤ、４２……銅メツキ、４３
……酸化膜。
Fig. 1 is a sectional view of a sensor portion showing an embodiment of the present invention, Fig. 2 is a sectional view of a washer according to the same embodiment, Fig. 3 is an overall sectional view of a sensor showing a conventional example, and Fig. 4 is a sectional view of a washer according to the same embodiment.
The figure is a sectional view of the sensor portion in FIG. 3. 1... Holder, 2... Zirconia tube,
11...Inner electrode (for output extraction), 12...Outer electrode (ground side), 23...Contact plate,
40...Metal washers, 42...Copper plating, 43
……Oxide film.
Claims (1)
表面の一部にそれぞれ電極を形成し、機関排気に
接触させた外表面の接地側電極と大気に接触させ
た内表面の出力取出側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ように
構成され、機関の排気管壁に螺合されたホルダー
の先端部に前記ジルコニアチユーブの基端部を金
属製のワツシヤを介して係止させる内燃機関用酸
素センサにおいて、 前記金属製のワツシヤ表面に酸化膜を形成した
ことを特徴とする内燃機関用酸素センサ。[Claim for Utility Model Registration] Electrodes are formed on a part of the inner and outer surfaces of the zirconia tube whose tip is closed, and the ground side electrode is on the outer surface that is in contact with the engine exhaust and the ground side electrode is on the inner surface that is in contact with the atmosphere. The base end of the zirconia tube is attached to the tip of a holder screwed onto the exhaust pipe wall of the engine, which is configured to detect the oxygen concentration in the engine exhaust gas by the electromotive force generated between the output extraction side electrode and the output extraction side electrode. An oxygen sensor for an internal combustion engine that is locked via a metal washer, characterized in that an oxide film is formed on the surface of the metal washer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6278790U JPH0421958U (en) | 1990-06-15 | 1990-06-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6278790U JPH0421958U (en) | 1990-06-15 | 1990-06-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0421958U true JPH0421958U (en) | 1992-02-24 |
Family
ID=31592254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6278790U Pending JPH0421958U (en) | 1990-06-15 | 1990-06-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0421958U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010117348A (en) * | 2008-10-15 | 2010-05-27 | Ngk Spark Plug Co Ltd | Gas sensor |
-
1990
- 1990-06-15 JP JP6278790U patent/JPH0421958U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010117348A (en) * | 2008-10-15 | 2010-05-27 | Ngk Spark Plug Co Ltd | Gas sensor |