JPH0440115U - - Google Patents
Info
- Publication number
- JPH0440115U JPH0440115U JP8242690U JP8242690U JPH0440115U JP H0440115 U JPH0440115 U JP H0440115U JP 8242690 U JP8242690 U JP 8242690U JP 8242690 U JP8242690 U JP 8242690U JP H0440115 U JPH0440115 U JP H0440115U
- Authority
- JP
- Japan
- Prior art keywords
- exhaust gas
- gas
- pipe
- flow rate
- 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
- 239000007789 gas Substances 0.000 claims description 17
- 239000003054 catalyst Substances 0.000 claims description 5
- 230000003197 catalytic effect Effects 0.000 claims description 5
- 239000002737 fuel gas Substances 0.000 claims description 5
- 238000000746 purification Methods 0.000 claims description 5
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 claims 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims 1
- 229910002091 carbon monoxide Inorganic materials 0.000 claims 1
- 229930195733 hydrocarbon Natural products 0.000 claims 1
- 150000002430 hydrocarbons Chemical class 0.000 claims 1
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Exhaust Gas After Treatment (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
Description
第１図は本考案の触媒式排ガス浄化装置の一実
施例を示す回路図、第２図はその要部を破断して
示した回路図、第３図は三元触媒の特性を表すグ
ラフ、第４図は従来の触媒式排ガス浄化装置を示
す回路図である。
２４……ガスエンジン、２６……排ガス管路、
２７……三元触媒、２８……熱交換器、３１……
燃料ガス注入管、３２……ガス流量調節弁、３３
……コントローラ、３４……酸素濃度センサ。
Fig. 1 is a circuit diagram showing an embodiment of the catalytic exhaust gas purification device of the present invention, Fig. 2 is a circuit diagram showing the main parts cut away, and Fig. 3 is a graph showing the characteristics of the three-way catalyst. FIG. 4 is a circuit diagram showing a conventional catalytic exhaust gas purification device. 24...Gas engine, 26...Exhaust gas pipe,
27... Three-way catalyst, 28... Heat exchanger, 31...
Fuel gas injection pipe, 32...Gas flow rate control valve, 33
...Controller, 34...Oxygen concentration sensor.
Claims (1)
三元触媒により、排ガス中に含まれる窒素酸化物
を還元処理するとともに一酸化炭素および炭化水
素を酸化処理する触媒式排ガス浄化装置において
、 前記三元触媒より上流側の排ガス管路に接続さ
れ前記ガスエンジンに供給される燃料ガスの一部
をこの排ガス管路内に直接注入する燃料ガス注入
管と、 この燃料ガス注入管中に設けられ前記排ガス管
路内に注入される燃料ガスの流量を調節するガス
流量調節弁と、 このガス流量調節弁の弁開度を制御するコント
ローラと、 このコントローラに対し排ガス中の酸素濃度を
検出して送信する酸素濃度センサと を具備したことを特徴とする触媒式排ガス浄化装
置。 (2) 三元触媒に熱交換器が設けられたことを特
徴とする請求項１記載の触媒式排ガス浄化装置。[Scope of claim for utility model registration] (1) A three-way catalyst installed in the exhaust gas pipe of a gas engine reduces nitrogen oxides contained in exhaust gas and oxidizes carbon monoxide and hydrocarbons. In the catalytic exhaust gas purification device, a fuel gas injection pipe is connected to an exhaust gas pipe upstream of the three-way catalyst and directly injects a part of the fuel gas to be supplied to the gas engine into the exhaust gas pipe; a gas flow rate control valve provided in the fuel gas injection pipe to adjust the flow rate of the fuel gas injected into the exhaust gas pipe; a controller to control the opening degree of the gas flow rate control valve; A catalytic exhaust gas purification device characterized by comprising an oxygen concentration sensor that detects and transmits the oxygen concentration inside. (2) The catalytic exhaust gas purification device according to claim 1, wherein the three-way catalyst is provided with a heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8242690U JPH0440115U (en) | 1990-08-02 | 1990-08-02 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8242690U JPH0440115U (en) | 1990-08-02 | 1990-08-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0440115U true JPH0440115U (en) | 1992-04-06 |
Family
ID=31629228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8242690U Pending JPH0440115U (en) | 1990-08-02 | 1990-08-02 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0440115U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10299464A (en) * | 1997-04-28 | 1998-11-10 | Yamaha Motor Co Ltd | Engine with catalyst for exhaust gas purification |
-
1990
- 1990-08-02 JP JP8242690U patent/JPH0440115U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10299464A (en) * | 1997-04-28 | 1998-11-10 | Yamaha Motor Co Ltd | Engine with catalyst for exhaust gas purification |
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