JPS5598641A - Controlling device for volume ratio of air to fuel - Google Patents

Controlling device for volume ratio of air to fuel

Info

Publication number
JPS5598641A
JPS5598641A JP603579A JP603579A JPS5598641A JP S5598641 A JPS5598641 A JP S5598641A JP 603579 A JP603579 A JP 603579A JP 603579 A JP603579 A JP 603579A JP S5598641 A JPS5598641 A JP S5598641A
Authority
JP
Japan
Prior art keywords
air
control
negative pressure
fuel
valve
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
Application number
JP603579A
Other languages
Japanese (ja)
Inventor
Tokuo Kosuge
Takeshi Atago
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Automob Antipollut & Saf Res Center
Automobile Appliance Anti Pollution and Safety Research Center
Original Assignee
Automob Antipollut & Saf Res Center
Automobile Appliance Anti Pollution and Safety Research Center
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 Automob Antipollut & Saf Res Center, Automobile Appliance Anti Pollution and Safety Research Center filed Critical Automob Antipollut & Saf Res Center
Priority to JP603579A priority Critical patent/JPS5598641A/en
Publication of JPS5598641A publication Critical patent/JPS5598641A/en
Pending 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

PURPOSE: To obtain appropriate control on volume ratio of air to fuel in response to an engine fluctuation, by a proportional control of main fuel system of feed-back type carburetor by means of an air inlet negative pressure and by an on-off control of a slow system using an electromagnetic valve.
CONSTITUTION: In an air-inlet line of engine 1, idling switch 3, and in an exhaust line, O2 sensor 5 and ternary catalyst 6, are provided. Signals from switch 3 and O2 sensor 5, etc. are inputted into control circuit 10 and by compairing these signals with set value, its deflection amounts are outputted. On an auxiliary bleeder of slow system of carburetor, there provided on-off electromagnetic valve 9 for introducing of atmosphere via passage 24, 25 and furthermore, in auxiliary fuel passage of main fuel system, arranged a proportional type controling valve 7, driven by an inlet negative pressure, and negative pressure amount for this control valve 7 is controlled by on-off electromagnetic valve 9. And both electromagnetic valves 9, 9 are electrically connected with circuit 10.
COPYRIGHT: (C)1980,JPO&Japio
JP603579A 1979-01-24 1979-01-24 Controlling device for volume ratio of air to fuel Pending JPS5598641A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP603579A JPS5598641A (en) 1979-01-24 1979-01-24 Controlling device for volume ratio of air to fuel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP603579A JPS5598641A (en) 1979-01-24 1979-01-24 Controlling device for volume ratio of air to fuel

Publications (1)

Publication Number Publication Date
JPS5598641A true JPS5598641A (en) 1980-07-26

Family

ID=11627390

Family Applications (1)

Application Number Title Priority Date Filing Date
JP603579A Pending JPS5598641A (en) 1979-01-24 1979-01-24 Controlling device for volume ratio of air to fuel

Country Status (1)

Country Link
JP (1) JPS5598641A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57165650A (en) * 1981-04-06 1982-10-12 Nissan Motor Co Ltd Air-fuel ratio controller of carburetor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57165650A (en) * 1981-04-06 1982-10-12 Nissan Motor Co Ltd Air-fuel ratio controller of carburetor

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