JPS57191433A - Idle rotation control device - Google Patents

Idle rotation control device

Info

Publication number
JPS57191433A
JPS57191433A JP56076637A JP7663781A JPS57191433A JP S57191433 A JPS57191433 A JP S57191433A JP 56076637 A JP56076637 A JP 56076637A JP 7663781 A JP7663781 A JP 7663781A JP S57191433 A JPS57191433 A JP S57191433A
Authority
JP
Japan
Prior art keywords
passage
control valve
valve
measuring sections
bypassing
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
JP56076637A
Other languages
Japanese (ja)
Inventor
Torazo Nishinomiya
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP56076637A priority Critical patent/JPS57191433A/en
Publication of JPS57191433A publication Critical patent/JPS57191433A/en
Pending 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
    • F02M3/00—Idling devices for carburettors
    • F02M3/06—Increasing idling speed
    • F02M3/07—Increasing idling speed by positioning the throttle flap stop, or by changing the fuel flow cross-sectional area, by electrical, electromechanical or electropneumatic means, according to engine speed
    • F02M3/075—Increasing idling speed by positioning the throttle flap stop, or by changing the fuel flow cross-sectional area, by electrical, electromechanical or electropneumatic means, according to engine speed the valve altering the fuel conduit cross-section being a slidable valve

Landscapes

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

Abstract

PURPOSE:To make it possible to operate an engine in a stabilized conditon for a prolonged period of time by a method wherein in the titled device in which the sectional area of opening of an air passage is varied by a pair of measuring sections coupled to a proportional control valve, a variable flow rate control valve is provided in a passage bypassing the pair of measuring sections. CONSTITUTION:The idle rotation control device 1 is arranged in the bypass passage 4 having pipes 15 and 16 bypassing the throttle valve in the air intake pipe. The device 1 is provided with the pair of measuring sections 9 and 10 attached integrally to the output shaft of the proportional control valve V having such a characteristic that the variation of the position of the output shaft of the valve V is proportional to an electric current supplied to the valve. In this case, the bypass passage 11A bypassing the measuring sections 9 and 10 is provided in the body of the device 1 and the variable flow rate control valve 12A is provided in the passage 11A. With the above structure, even when a combustion gas flows backward due to a backfire phenomenon or the like, the adhesion of carbon particles contains in the combustion gas to the inner wall of the passage 11A is prevented and the secular variation of the number of idle rotations of the engine is also prevented.
JP56076637A 1981-05-22 1981-05-22 Idle rotation control device Pending JPS57191433A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56076637A JPS57191433A (en) 1981-05-22 1981-05-22 Idle rotation control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56076637A JPS57191433A (en) 1981-05-22 1981-05-22 Idle rotation control device

Publications (1)

Publication Number Publication Date
JPS57191433A true JPS57191433A (en) 1982-11-25

Family

ID=13610886

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56076637A Pending JPS57191433A (en) 1981-05-22 1981-05-22 Idle rotation control device

Country Status (1)

Country Link
JP (1) JPS57191433A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6158654U (en) * 1984-06-04 1986-04-19
JPS6223543A (en) * 1985-07-24 1987-01-31 Hitachi Ltd Control device for idle speed in automobile engine
US7134409B2 (en) * 2003-06-30 2006-11-14 Toyota Jidosha Kabushiki Kaisha Deposit removal for internal combustion engine

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55112467A (en) * 1979-02-21 1980-08-30 Hitachi Ltd Proportional control valve

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55112467A (en) * 1979-02-21 1980-08-30 Hitachi Ltd Proportional control valve

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6158654U (en) * 1984-06-04 1986-04-19
JPS6223543A (en) * 1985-07-24 1987-01-31 Hitachi Ltd Control device for idle speed in automobile engine
US7134409B2 (en) * 2003-06-30 2006-11-14 Toyota Jidosha Kabushiki Kaisha Deposit removal for internal combustion engine

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