JPS57198352A - Control method of air-fuel ratio - Google Patents

Control method of air-fuel ratio

Info

Publication number
JPS57198352A
JPS57198352A JP8261781A JP8261781A JPS57198352A JP S57198352 A JPS57198352 A JP S57198352A JP 8261781 A JP8261781 A JP 8261781A JP 8261781 A JP8261781 A JP 8261781A JP S57198352 A JPS57198352 A JP S57198352A
Authority
JP
Japan
Prior art keywords
air
air bleed
fuel
fuel ratio
needle 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.)
Granted
Application number
JP8261781A
Other languages
Japanese (ja)
Other versions
JPS639102B2 (en
Inventor
Katsuyoshi Fukaya
Akira Tokuda
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.)
Aisan Industry Co Ltd
Original Assignee
Aisan Industry 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 Aisan Industry Co Ltd filed Critical Aisan Industry Co Ltd
Priority to JP8261781A priority Critical patent/JPS57198352A/en
Priority to US06/366,989 priority patent/US4463724A/en
Publication of JPS57198352A publication Critical patent/JPS57198352A/en
Publication of JPS639102B2 publication Critical patent/JPS639102B2/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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D33/00—Controlling delivery of fuel or combustion-air, not otherwise provided for
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/14—Introducing closed-loop corrections
    • F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
    • F02D41/1477—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the regulation circuit or part of it,(e.g. comparator, PI regulator, output)
    • F02D41/1484—Output circuit

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 perform stable control of air-fuel ratio at opening and closing of a needle valve, by regulating air bleed quantity to an air bleed position through a step motor. CONSTITUTION:A step motor 10 both moves a tapered needle valve 11 axially shuttling by its reversible rotary motion and changes opening area of a main fuel air bleed passage 13 and low speed air bleed passage 14 in a carburetor 12. Even if the needle valve 11 is in a fully closed state, a minimum air bleed amount can be held to prevent fuel from flowing into air bleed passages 13, 14. In this way, air is endlessly flowing in the air bleed passages 13, 14, and fuel is never immersed in the air bleed passages 13, 14 by pulsation of the carburetor, then misinformation is not caused, thus stable control of air-fuel ratio can be performed.
JP8261781A 1981-05-30 1981-05-30 Control method of air-fuel ratio Granted JPS57198352A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP8261781A JPS57198352A (en) 1981-05-30 1981-05-30 Control method of air-fuel ratio
US06/366,989 US4463724A (en) 1981-05-30 1982-04-09 Method for controlling the air-fuel ratio in a carburetor of an internal combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8261781A JPS57198352A (en) 1981-05-30 1981-05-30 Control method of air-fuel ratio

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP62179422A Division JPS6345455A (en) 1981-05-30 1987-07-18 Air-fuel ratio control device

Publications (2)

Publication Number Publication Date
JPS57198352A true JPS57198352A (en) 1982-12-04
JPS639102B2 JPS639102B2 (en) 1988-02-25

Family

ID=13779422

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8261781A Granted JPS57198352A (en) 1981-05-30 1981-05-30 Control method of air-fuel ratio

Country Status (1)

Country Link
JP (1) JPS57198352A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102182784A (en) * 2011-04-27 2011-09-14 江苏大学 Flow control valve special for air spring with additional air chamber

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4064884B2 (en) 2003-08-05 2008-03-19 信越化学工業株式会社 Magnetic field generator and magnetic field adjustment method
US20230085375A1 (en) 2020-06-05 2023-03-16 Kaijo Corporation Ultrasonic transducer having state monitoring function and ultrasonic cleaning device using the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102182784A (en) * 2011-04-27 2011-09-14 江苏大学 Flow control valve special for air spring with additional air chamber

Also Published As

Publication number Publication date
JPS639102B2 (en) 1988-02-25

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