JPH0264732U - - Google Patents
Info
- Publication number
- JPH0264732U JPH0264732U JP14396588U JP14396588U JPH0264732U JP H0264732 U JPH0264732 U JP H0264732U JP 14396588 U JP14396588 U JP 14396588U JP 14396588 U JP14396588 U JP 14396588U JP H0264732 U JPH0264732 U JP H0264732U
- Authority
- JP
- Japan
- Prior art keywords
- air
- control valve
- fuel ratio
- controller
- gas
- 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
- 239000000446 fuel Substances 0.000 claims description 8
- 238000001514 detection method Methods 0.000 claims description 6
- 230000002457 bidirectional effect Effects 0.000 claims description 2
- 239000003054 catalyst Substances 0.000 claims description 2
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Output Control And Ontrol Of Special Type Engine (AREA)
Description
第１図は本考案の第１実施例を示すガスエンジ
ンの給排気系統の概略図、第２図は第１実施例に
おける本考案の要部の一実施例を示す制御電気回
路図、第３図は本考案の第２実施例を示すガスエ
ンジンの給排気系統の概略図、第４図は従来のガ
スエンジンの給排気系統の概略図である。
１…ガスエンジン、２…排気系、３…Ｏ２セン
サ、４…コントローラ、５…バイパスライン、６
…空燃比制御弁、７…スロツトル弁、８…給気系
、９…ミキサ、１０…空気供給管、１１…ガス供
給管、１２…触媒槽、１３…全開検出体、１４…
全閉検出体、１５…補助制御弁、１６…補助コン
トローラ、１７，１８…両方向タイマー。
FIG. 1 is a schematic diagram of a gas engine supply and exhaust system showing a first embodiment of the present invention, FIG. 2 is a control electric circuit diagram showing an embodiment of the main part of the present invention in the first embodiment, and FIG. The figure is a schematic diagram of a gas engine supply and exhaust system showing a second embodiment of the present invention, and FIG. 4 is a schematic diagram of a conventional gas engine supply and exhaust system. 1...Gas engine, 2...Exhaust system, 3... O2 sensor, 4...Controller, 5...Bypass line, 6
... Air-fuel ratio control valve, 7... Throttle valve, 8... Air supply system, 9... Mixer, 10... Air supply pipe, 11... Gas supply pipe, 12... Catalyst tank, 13... Fully open detection body, 14...
Fully closed detector, 15... Auxiliary control valve, 16... Auxiliary controller, 17, 18... Bidirectional timer.
Claims (1)
ガスエンジンの給気系のスロツトル弁より上流に
設置されたミキサと、 上記ミキサを迂回して空気又はガスをスロツト
ル弁より上流の給気系に供給するバイパスライン
と、 上記バイパスラインに設置された空燃比制御弁
と、 ガスエンジンの排気系に設置され、排気ガス中
のＯ２成分を検出するＯ２センサと、 上記Ｏ２センサの出力により空燃比制御弁を開
閉制御するコントローラと、 上記Ｏ２センサより下流で排気系に設置された
三元触媒とからなるガスエンジンにおいて、 空燃比制御弁の一部に設置され、その全開及び
全閉を検出する検出体と、 ガス供給管に設置された補助制御弁と、 上記補助制御弁を上記検出体の検出信号によつ
て開閉制御する補助コントローラとを具備させた
ことを特徴とする空燃比コントローラ。 (2) 補助コントローラによる補助制御弁の開閉
動作を空燃比制御弁の全開及び全閉を検出する検
出体の検出信号により両方向タイマーを介して行
わせたことを特徴とする請求項１記載の空燃比コ
ントローラ。[Scope of Claim for Utility Model Registration] (1) A mixer installed upstream of the throttle valve in the air supply system of a gas engine to mix air and gas at a predetermined ratio; an air-fuel ratio control valve installed in the bypass line; and an air-fuel ratio control valve installed in the exhaust system of the gas engine to detect O 2 components in the exhaust gas . In a gas engine consisting of a sensor, a controller that controls opening and closing of the air-fuel ratio control valve based on the output of the O 2 sensor, and a three-way catalyst installed in the exhaust system downstream of the O 2 sensor, one of the air-fuel ratio control valves is provided. a detection body installed in the gas supply pipe to detect whether it is fully open or fully closed; an auxiliary control valve installed in the gas supply pipe; and an auxiliary controller that controls opening and closing of the auxiliary control valve based on a detection signal from the detection body. An air-fuel ratio controller characterized by comprising: (2) The air conditioner according to claim 1, characterized in that the opening/closing operation of the auxiliary control valve by the auxiliary controller is performed via a bidirectional timer based on a detection signal from a detection body that detects fully open and fully closed states of the air-fuel ratio control valve. Fuel ratio controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14396588U JPH0442513Y2 (en) | 1988-11-02 | 1988-11-02 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14396588U JPH0442513Y2 (en) | 1988-11-02 | 1988-11-02 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0264732U true JPH0264732U (en) | 1990-05-15 |
| JPH0442513Y2 JPH0442513Y2 (en) | 1992-10-07 |
Family
ID=31411259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14396588U Expired JPH0442513Y2 (en) | 1988-11-02 | 1988-11-02 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0442513Y2 (en) |
-
1988
- 1988-11-02 JP JP14396588U patent/JPH0442513Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0442513Y2 (en) | 1992-10-07 |
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