JPH0272317U - - Google Patents
Info
- Publication number
- JPH0272317U JPH0272317U JP14906288U JP14906288U JPH0272317U JP H0272317 U JPH0272317 U JP H0272317U JP 14906288 U JP14906288 U JP 14906288U JP 14906288 U JP14906288 U JP 14906288U JP H0272317 U JPH0272317 U JP H0272317U
- Authority
- JP
- Japan
- Prior art keywords
- oxygen sensor
- disposed
- exhaust gas
- sub
- purification device
- 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
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 10
- 239000001301 oxygen Substances 0.000 claims description 9
- 229910052760 oxygen Inorganic materials 0.000 claims description 9
- 239000007789 gas Substances 0.000 claims description 6
- 238000000746 purification Methods 0.000 claims description 4
- 239000003054 catalyst Substances 0.000 claims description 2
- 230000003197 catalytic effect Effects 0.000 claims description 2
- 238000011144 upstream manufacturing Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 5
- 230000009977 dual effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/008—Mounting or arrangement of exhaust sensors in or on exhaust apparatus
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Silencers (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Description
第１図は本考案の第１実施例に係る排気ガス浄
化装置の概略構成図、第２図は第１図の装置の拡
大部分断面図、第３図は活性化酸素センサ素子部
の拡大半断面図、第４図は第３図の素子部の拡大
部分断面図、第５図は本考案の第２実施例に係る
排気ガス浄化装置の概略構成図、第６図は第５図
の装置の拡大部分断面図、第７図はサブ酸素セン
サを単に排気管の下流側に設けた場合の概略構成
図、第８図は第７図の配置におけるメイン酸素セ
ンサとサブ酸素センサの出力特性図、第９図は第
１図又は第５図の装置における制御パターンの一
例を示す空燃比修正制御特性図、である。
１……排気マニホルド、１ａ，１ｂ……排気ガ
ス通路、２，１２ａ，１２ｂ……メイン酸素セン
サ、３……フロントパイプ、３ａ，３ｂ，１１ａ
，１１ｂ……デユアル排気管部、３ｃ……シング
ル排気管部、４……触媒コンバータ、５……分岐
通路としてのバイパス通路、６，１４……サブ酸
素センサ、１０……触媒層、１３……分岐通路と
しての連通路、１５ａ，１５ｂ……絞り。
FIG. 1 is a schematic configuration diagram of an exhaust gas purification device according to a first embodiment of the present invention, FIG. 2 is an enlarged partial sectional view of the device in FIG. 1, and FIG. 4 is an enlarged partial sectional view of the element portion in FIG. 3, FIG. 5 is a schematic diagram of the exhaust gas purification device according to the second embodiment of the present invention, and FIG. 6 is the device shown in FIG. 5. Fig. 7 is a schematic configuration diagram when the sub oxygen sensor is simply provided on the downstream side of the exhaust pipe, Fig. 8 is an output characteristic diagram of the main oxygen sensor and sub oxygen sensor in the arrangement shown in Fig. 7. , FIG. 9 is an air-fuel ratio correction control characteristic diagram showing an example of a control pattern in the apparatus of FIG. 1 or FIG. 5. 1... Exhaust manifold, 1a, 1b... Exhaust gas passage, 2, 12a, 12b... Main oxygen sensor, 3... Front pipe, 3a, 3b, 11a
, 11b...Dual exhaust pipe section, 3c...Single exhaust pipe section, 4...Catalytic converter, 5...Bypass passage as a branch passage, 6, 14...Sub oxygen sensor, 10...Catalyst layer, 13... ...Communication path as a branch path, 15a, 15b... Throttle.
Claims (1)
も下流側にサブ酸素センサを配設した排気ガス浄
化装置において、前記サブ酸素センサを自身が触
媒層を有する活性化酸素センサとし、排気系に設
けられた触媒コンバータの上流側に排気ガスの一
部を導入可能な分岐通路を設け、該分岐通路に前
記サブ酸素センサを配設したことを特徴とする排
気ガス浄化装置。 In an exhaust gas purification device in which a main oxygen sensor is disposed on the upstream side of the exhaust system and a sub oxygen sensor is disposed on the downstream side thereof, the sub oxygen sensor is an activated oxygen sensor itself having a catalyst layer, and is disposed in the exhaust system. An exhaust gas purification device characterized in that a branch passage into which a portion of exhaust gas can be introduced is provided upstream of the catalytic converter, and the sub oxygen sensor is disposed in the branch passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14906288U JPH0272317U (en) | 1988-11-17 | 1988-11-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14906288U JPH0272317U (en) | 1988-11-17 | 1988-11-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0272317U true JPH0272317U (en) | 1990-06-01 |
Family
ID=31420949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14906288U Pending JPH0272317U (en) | 1988-11-17 | 1988-11-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0272317U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011102419A1 (en) * | 2010-02-17 | 2011-08-25 | フタバ産業株式会社 | Exhaust device |
-
1988
- 1988-11-17 JP JP14906288U patent/JPH0272317U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011102419A1 (en) * | 2010-02-17 | 2011-08-25 | フタバ産業株式会社 | Exhaust device |
| CN102762842A (en) * | 2010-02-17 | 2012-10-31 | 双叶产业株式会社 | Exhaust device |