JPS5873920U - Engine exhaust aftertreatment device - Google Patents
Engine exhaust aftertreatment deviceInfo
- Publication number
- JPS5873920U JPS5873920U JP16939081U JP16939081U JPS5873920U JP S5873920 U JPS5873920 U JP S5873920U JP 16939081 U JP16939081 U JP 16939081U JP 16939081 U JP16939081 U JP 16939081U JP S5873920 U JPS5873920 U JP S5873920U
- Authority
- JP
- Japan
- Prior art keywords
- oxygen concentration
- concentration sensor
- exhaust aftertreatment
- aftertreatment device
- air
- 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
- Exhaust Gas After Treatment (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図は従来例のシステム図、第２図は本考案の第１実
施例のシステム図、第３図は本考案の第２実施例の要部
のシステム図、第４図は第３実施例の制御信号の波形図
、第５図は本考案の第４実施例の一部の断面図、第６図
は第５図の要部の拡大断面図、第７図は本考案の第５実
施例の一部の断面図である。
２０・・・排気通路、２１・・・トラップ装置、２６・
・・空気導入通路、２７・・・空気ポンプ、２８・・・
燃料ノズル、２９・・・着火装置、３０・・・酸素濃度
センサ、３１・・・制御装置、３２・・・燃料ポンプ、
３３・・・電磁弁、３４・・・空気逃がし弁。Figure 1 is a system diagram of the conventional example, Figure 2 is a system diagram of the first embodiment of the present invention, Figure 3 is a system diagram of the main part of the second embodiment of the present invention, and Figure 4 is the system diagram of the third embodiment. FIG. 5 is a sectional view of a part of the fourth embodiment of the present invention, FIG. 6 is an enlarged sectional view of the main part of FIG. 5, and FIG. 7 is a diagram of the fifth embodiment of the present invention. FIG. 3 is a cross-sectional view of a part of the embodiment. 20... Exhaust passage, 21... Trap device, 26.
...Air introduction passage, 27...Air pump, 28...
Fuel nozzle, 29... Ignition device, 30... Oxygen concentration sensor, 31... Control device, 32... Fuel pump,
33... Solenoid valve, 34... Air relief valve.
Claims (1)
ップ装置と、該トラップ装置の上流側に空気を導入する
空気導入通路と、該空気導入通路に燃料を供給する燃料
ノズルと、該ノズルの下流に配設した着火装置及び酸素
濃度センサと、該酸素濃度センサの出力に応じて空気と
燃料との比をフィードバック制御する制御装置と、を備
えてなるエンジンの排気後処理装置。A trap device installed in an exhaust passage to collect particulates in the exhaust, an air introduction passage that introduces air to the upstream side of the trap device, a fuel nozzle that supplies fuel to the air introduction passage, and the nozzle. An exhaust aftertreatment device for an engine, comprising: an ignition device and an oxygen concentration sensor disposed downstream of the oxygen concentration sensor; and a control device that performs feedback control of the ratio of air to fuel according to the output of the oxygen concentration sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16939081U JPS5873920U (en) | 1981-11-16 | 1981-11-16 | Engine exhaust aftertreatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16939081U JPS5873920U (en) | 1981-11-16 | 1981-11-16 | Engine exhaust aftertreatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5873920U true JPS5873920U (en) | 1983-05-19 |
Family
ID=29961377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16939081U Pending JPS5873920U (en) | 1981-11-16 | 1981-11-16 | Engine exhaust aftertreatment device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5873920U (en) |
-
1981
- 1981-11-16 JP JP16939081U patent/JPS5873920U/en active Pending
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