JPH036558U - - Google Patents
Info
- Publication number
- JPH036558U JPH036558U JP1989066689U JP6668989U JPH036558U JP H036558 U JPH036558 U JP H036558U JP 1989066689 U JP1989066689 U JP 1989066689U JP 6668989 U JP6668989 U JP 6668989U JP H036558 U JPH036558 U JP H036558U
- Authority
- JP
- Japan
- Prior art keywords
- oxygen
- solid electrolyte
- detection element
- electrolyte layer
- oxygen concentration
- 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
- 239000001301 oxygen Substances 0.000 claims description 8
- 229910052760 oxygen Inorganic materials 0.000 claims description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 7
- 239000007789 gas Substances 0.000 claims description 6
- 239000008188 pellet Substances 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 3
- 239000007784 solid electrolyte Substances 0.000 claims description 3
- 230000003197 catalytic effect Effects 0.000 claims 1
- 230000001681 protective effect Effects 0.000 claims 1
- 239000000126 substance Substances 0.000 claims 1
- 239000003054 catalyst Substances 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
Landscapes
- Measuring Oxygen Concentration In Cells (AREA)
Description
第１図は本考案の酸素センサの一実施例を示す
断面図、第２図はペレツトの水性ガス反応促進触
媒担持量とリツチ→リーン応答時間との関係を示
したグラフ、第３図は酸素センサの排気ガス側電
極における水性ガス反応の有無とリツチ→リーン
応答時間との関係を示したグラフである。
１……酸素センサ、２……保護管、２ａ……小
孔、３……検出素子、４……酸素イオン伝導性固
体電解質層（ＹＳＺ層）、５，６……電極、７…
…被覆層、８……ペレツト。
Figure 1 is a sectional view showing an embodiment of the oxygen sensor of the present invention, Figure 2 is a graph showing the relationship between the amount of water gas reaction promoting catalyst supported on pellets and the rich→lean response time, and Figure 3 is a graph showing the relationship between the amount of water gas reaction promoting catalyst supported on the pellets and the rich→lean response time. 2 is a graph showing the relationship between the presence or absence of a water gas reaction at the exhaust gas side electrode of the sensor and the rich→lean response time. DESCRIPTION OF SYMBOLS 1... Oxygen sensor, 2... Protection tube, 2a... Small hole, 3... Detection element, 4... Oxygen ion conductive solid electrolyte layer (YSZ layer), 5, 6... Electrode, 7...
...Covering layer, 8...Pellets.
Claims (1)
ン伝導性固体電解質層及び該固体電解質層を挟持
する一対の電極よりなり、被検出ガス中の酸素濃
度を検出する検出素子を配設した酸素センサにお
いて、前記保護管と酸素濃度検出素子との間の空
〓に、水性ガス反応を促進する触媒作用を有する
物質を担持するペレツトを充填したことを特徴と
する酸素センサ。 An oxygen detection element consisting of an oxygen ion-conducting solid electrolyte layer and a pair of electrodes sandwiching the solid electrolyte layer and detecting the oxygen concentration in the gas to be detected is arranged in a protective tube in which many small holes are formed. An oxygen sensor characterized in that the space between the protection tube and the oxygen concentration detection element is filled with pellets carrying a substance having a catalytic action that promotes water gas reaction.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6668989U JPH0725686Y2 (en) | 1989-06-09 | 1989-06-09 | Oxygen sensor |
| KR1019890016581A KR920004533B1 (en) | 1988-11-18 | 1989-11-16 | Oxygen sensor |
| DE3938056A DE3938056C2 (en) | 1988-11-18 | 1989-11-16 | Oxygen sensor |
| US07/815,582 US5271816A (en) | 1988-11-18 | 1991-12-30 | Oxygen sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6668989U JPH0725686Y2 (en) | 1989-06-09 | 1989-06-09 | Oxygen sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH036558U true JPH036558U (en) | 1991-01-22 |
| JPH0725686Y2 JPH0725686Y2 (en) | 1995-06-07 |
Family
ID=31599609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6668989U Expired - Lifetime JPH0725686Y2 (en) | 1988-11-18 | 1989-06-09 | Oxygen sensor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0725686Y2 (en) |
-
1989
- 1989-06-09 JP JP6668989U patent/JPH0725686Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0725686Y2 (en) | 1995-06-07 |
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