JPS59150966U - Carburetor air-fuel ratio control device - Google Patents

Carburetor air-fuel ratio control device

Info

Publication number
JPS59150966U
JPS59150966U JP4529483U JP4529483U JPS59150966U JP S59150966 U JPS59150966 U JP S59150966U JP 4529483 U JP4529483 U JP 4529483U JP 4529483 U JP4529483 U JP 4529483U JP S59150966 U JPS59150966 U JP S59150966U
Authority
JP
Japan
Prior art keywords
fuel ratio
control valve
air
exhaust
control 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.)
Granted
Application number
JP4529483U
Other languages
Japanese (ja)
Other versions
JPS6341553Y2 (en
Inventor
猪口　憲一
Original Assignee
ダイハツ工業株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ダイハツ工業株式会社 filed Critical ダイハツ工業株式会社
Priority to JP4529483U priority Critical patent/JPS59150966U/en
Publication of JPS59150966U publication Critical patent/JPS59150966U/en
Application granted granted Critical
Publication of JPS6341553Y2 publication Critical patent/JPS6341553Y2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Control Of The Air-Fuel Ratio Of Carburetors (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は三元触媒性能と０□センサの出力特性を示す図
、第２図は本考案の一実施例を示す気化器および制御弁
の断面図、第３図は同実施例における制御回路のブロッ
ク図、第４図ａ　”　ｅは同制御回路における各部の電
圧波形図、第５図は本考案に基づく空燃比制御特性を示
す図である。 １・・・気化器、７・・・エアブリード通路、８・・・
制御弁、１７・・・制御回路、１５・・・０２センサ、
１６・・・排気温検出手段（サーモセンサ）。Fig. 1 is a diagram showing three-way catalyst performance and output characteristics of the 0□ sensor, Fig. 2 is a cross-sectional view of a carburetor and control valve showing an embodiment of the present invention, and Fig. 3 is a control circuit in the same embodiment. 4a and 4e are voltage waveform diagrams of various parts in the control circuit, and FIG. 5 is a diagram showing air-fuel ratio control characteristics based on the present invention. 1... Carburizer, 7... Air bleed passage, 8...
Control valve, 17...control circuit, 15...02 sensor,
16... Exhaust temperature detection means (thermo sensor).

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 気化器のエアブリード通路あるいｉ燃料通路に設けた流
量制御用の制御弁と、排気管内に設けられ排気中の酸素
濃度を検出する０□センサと、エンジンの排気温度を直
接あるいは間接的に検出する排気温検出手段と、前記０
２センサからの信号に基いて前記制御弁を開閉させると
ともに、前記排気温検出手段からの信号に基いて前記制
御弁を駆動するための制御定数を閉成方向と開成方向と
で異ならせることにより排気温度が低い場合に空燃比を
リーン側に、高い場合にリッチ側にそれぞれ補正するよ
うに構成した制御回路とを具備してなることを特徴とす
る気化器の空燃比制御装置。A control valve for controlling the flow rate installed in the air bleed passage or i-fuel passage of the carburetor, a 0□ sensor installed in the exhaust pipe that detects the oxygen concentration in the exhaust gas, and a control valve that directly or indirectly monitors the engine exhaust temperature. Exhaust temperature detection means for detecting the temperature, and
By opening and closing the control valve based on the signals from the two sensors, and by making the control constant for driving the control valve different in the closing direction and the opening direction based on the signal from the exhaust temperature detection means. 1. An air-fuel ratio control device for a carburetor, comprising a control circuit configured to correct the air-fuel ratio to the lean side when the exhaust gas temperature is low, and to the rich side when the exhaust temperature is high.
JP4529483U 1983-03-28 1983-03-28 Carburetor air-fuel ratio control device Granted JPS59150966U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4529483U JPS59150966U (en) 1983-03-28 1983-03-28 Carburetor air-fuel ratio control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4529483U JPS59150966U (en) 1983-03-28 1983-03-28 Carburetor air-fuel ratio control device

Publications (2)

Publication Number Publication Date
JPS59150966U true JPS59150966U (en) 1984-10-09
JPS6341553Y2 JPS6341553Y2 (en) 1988-11-01

Family

ID=30175807

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4529483U Granted JPS59150966U (en) 1983-03-28 1983-03-28 Carburetor air-fuel ratio control device

Country Status (1)

Country Link
JP (1) JPS59150966U (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5110226A (en) * 1974-07-16 1976-01-27 Yamaha Motor Co Ltd Hibanatenkashiki 4 saikurunainenkikan
JPS51149423A (en) * 1975-06-17 1976-12-22 Nippon Denso Co Ltd Fuel ejection control device of air-fuel ratio feed back type

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5110226A (en) * 1974-07-16 1976-01-27 Yamaha Motor Co Ltd Hibanatenkashiki 4 saikurunainenkikan
JPS51149423A (en) * 1975-06-17 1976-12-22 Nippon Denso Co Ltd Fuel ejection control device of air-fuel ratio feed back type

Also Published As

Publication number Publication date
JPS6341553Y2 (en) 1988-11-01

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