JPS57168043A - Air-fuel-ratio control device for internal combustion engine - Google Patents

Air-fuel-ratio control device for internal combustion engine

Info

Publication number
JPS57168043A
JPS57168043A JP5174881A JP5174881A JPS57168043A JP S57168043 A JPS57168043 A JP S57168043A JP 5174881 A JP5174881 A JP 5174881A JP 5174881 A JP5174881 A JP 5174881A JP S57168043 A JPS57168043 A JP S57168043A
Authority
JP
Japan
Prior art keywords
control valve
slow
main
fuel
air bleed
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
JP5174881A
Other languages
Japanese (ja)
Other versions
JPH0118258B2 (en
Inventor
Nobukatsu Ishikawa
Harumasa Obata
Takao Tate
Toshio Tanahashi
Hiromi Otsuki
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.)
Denso Corp
Toyota Motor Corp
Original Assignee
Toyota Motor Corp
Toyota Jidosha Kogyo KK
NipponDenso Co Ltd
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 Toyota Motor Corp, Toyota Jidosha Kogyo KK, NipponDenso Co Ltd filed Critical Toyota Motor Corp
Priority to JP5174881A priority Critical patent/JPS57168043A/en
Priority to US06/364,455 priority patent/US4432324A/en
Priority to DE19823213060 priority patent/DE3213060A1/en
Publication of JPS57168043A publication Critical patent/JPS57168043A/en
Publication of JPH0118258B2 publication Critical patent/JPH0118258B2/ja
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M7/00—Carburettors with means for influencing, e.g. enriching or keeping constant, fuel/air ratio of charge under varying conditions
    • F02M7/23—Fuel aerating devices
    • F02M7/24—Controlling flow of aerating air

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of The Air-Fuel Ratio Of Carburetors (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)

Abstract

PURPOSE:To secure smooth acceleration by preventing the mixture, to be fed in the engine cylinder from becoming temporarily too thin, at the moment when the throttle valve is opened. CONSTITUTION:A slow fuel passage 24 is branched from a main fuel passage 16, and the inner end of a main nozzle tube 14 is connected to an electro-magnetic control valve 23 through air bleed duct 22, and the fuel flow out chamber 27 of the slow fuel passage 24 is connected to the solenoid valve 23 through air bleed duct 29. The electro-magnetic control valve 23 is controlled by the oxigen concn. in the exhaust gas. The electro-magnetic control valve 23 is equipped with the main flow control valves 80 and 82, which control the opening areas of the main air bleed passage 22 and slow air bleed passage 29, and slow fuel flow control valves 79 and 81, while making opening area increasing rate of the slow flow control valve 79 and 81 to be larger than the said increasing rate of the main flow control valve 80 and 82, and thus the mixture can be prevented from becoming temporarily too thin.
JP5174881A 1981-04-08 1981-04-08 Air-fuel-ratio control device for internal combustion engine Granted JPS57168043A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP5174881A JPS57168043A (en) 1981-04-08 1981-04-08 Air-fuel-ratio control device for internal combustion engine
US06/364,455 US4432324A (en) 1981-04-08 1982-04-01 Air-fuel ratio control device of an internal combustion engine
DE19823213060 DE3213060A1 (en) 1981-04-08 1982-04-07 DEVICE FOR REGULATING THE AIR / FUEL RATIO OF AN INTERNAL COMBUSTION ENGINE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5174881A JPS57168043A (en) 1981-04-08 1981-04-08 Air-fuel-ratio control device for internal combustion engine

Publications (2)

Publication Number Publication Date
JPS57168043A true JPS57168043A (en) 1982-10-16
JPH0118258B2 JPH0118258B2 (en) 1989-04-05

Family

ID=12895543

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5174881A Granted JPS57168043A (en) 1981-04-08 1981-04-08 Air-fuel-ratio control device for internal combustion engine

Country Status (1)

Country Link
JP (1) JPS57168043A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56152850U (en) * 1980-04-15 1981-11-16

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56152850U (en) * 1980-04-15 1981-11-16

Also Published As

Publication number Publication date
JPH0118258B2 (en) 1989-04-05

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