JPS57126535A - Engine r.p.m. controlling unit - Google Patents

Engine r.p.m. controlling unit

Info

Publication number
JPS57126535A
JPS57126535A JP56012397A JP1239781A JPS57126535A JP S57126535 A JPS57126535 A JP S57126535A JP 56012397 A JP56012397 A JP 56012397A JP 1239781 A JP1239781 A JP 1239781A JP S57126535 A JPS57126535 A JP S57126535A
Authority
JP
Japan
Prior art keywords
valve
engine
bypass
return spring
closed
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
JP56012397A
Other languages
Japanese (ja)
Inventor
Heihachi Yasukawa
Junji Shiba
Kouichi Yoshide
Takashi Ogiso
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.)
Nippon Carburetor Co Ltd
Original Assignee
Nippon Carburetor 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 Nippon Carburetor Co Ltd filed Critical Nippon Carburetor Co Ltd
Priority to JP56012397A priority Critical patent/JPS57126535A/en
Publication of JPS57126535A publication Critical patent/JPS57126535A/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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D31/00—Use of speed-sensing governors to control combustion engines, not otherwise provided for
    • F02D31/001—Electric control of rotation speed
    • F02D31/002—Electric control of rotation speed controlling air supply
    • F02D31/003—Electric control of rotation speed controlling air supply for idle speed control
    • F02D31/005—Electric control of rotation speed controlling air supply for idle speed control by controlling a throttle by-pass
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D11/00—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated
    • F02D11/06—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance
    • F02D11/10—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type
    • F02D2011/101—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type characterised by the means for actuating the throttles
    • F02D2011/102—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type characterised by the means for actuating the throttles at least one throttle being moved only by an electric actuator

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Means For Warming Up And Starting Carburetors (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)

Abstract

PURPOSE:To decrease the fluctuation in r.p.m. in an air-inlet unit equipped with a regulator valve in its throttle valve bypass, by controlling the air-rate by the first valve at the engine starting and by the second valve, which operates after the first valve closes, at the idling of an engine. CONSTITUTION:As an engine gets warmed up after the start-up, a pulse motor 7 is driven, and the second valve body 16 moves toward the ''closed''. At this time, since the second return spring 18 is stronger than the first return spring 13, a support 17 of the second valve moves a support 12 of the first valve toward the ''closed'', resisting the spring 13, and closes the first valve body 11 as well as a valve seat 9 at the completion of warming-up. When the first valve 4 becomes ''full closed'', the second valve body 16 compresses the second return spring 18 to vary the clearance between the spring and the second valve seat 15, thereby varying the effective area of a bypass 3. Accordingly, this system controls automatically the effective area of the bypass 3 for the entire region of start-up, warming-up, and idling of the engine, which keeps the fluctuation in the engine r.p.m. less.
JP56012397A 1981-01-30 1981-01-30 Engine r.p.m. controlling unit Pending JPS57126535A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56012397A JPS57126535A (en) 1981-01-30 1981-01-30 Engine r.p.m. controlling unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56012397A JPS57126535A (en) 1981-01-30 1981-01-30 Engine r.p.m. controlling unit

Publications (1)

Publication Number Publication Date
JPS57126535A true JPS57126535A (en) 1982-08-06

Family

ID=11804124

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56012397A Pending JPS57126535A (en) 1981-01-30 1981-01-30 Engine r.p.m. controlling unit

Country Status (1)

Country Link
JP (1) JPS57126535A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59134360A (en) * 1983-01-20 1984-08-02 Nippon Denso Co Ltd Auxiliary air control valve
FR2695961A1 (en) * 1992-09-18 1994-03-25 Bosch Gmbh Robert Device for adjusting the idling speed of an internal combustion engine.
EP0676543A1 (en) * 1994-04-06 1995-10-11 Magneti Marelli France Two stage valve for air supply of injectors of internal combustion engines
ES2258370A1 (en) * 2002-12-02 2006-08-16 Keihin Corporation Idle intake amount control device of engine
CN102852670A (en) * 2012-09-25 2013-01-02 庄景阳 Temperature-controlled electric enrichment valve device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59134360A (en) * 1983-01-20 1984-08-02 Nippon Denso Co Ltd Auxiliary air control valve
JPH0429869B2 (en) * 1983-01-20 1992-05-20
FR2695961A1 (en) * 1992-09-18 1994-03-25 Bosch Gmbh Robert Device for adjusting the idling speed of an internal combustion engine.
EP0676543A1 (en) * 1994-04-06 1995-10-11 Magneti Marelli France Two stage valve for air supply of injectors of internal combustion engines
ES2258370A1 (en) * 2002-12-02 2006-08-16 Keihin Corporation Idle intake amount control device of engine
CN102852670A (en) * 2012-09-25 2013-01-02 庄景阳 Temperature-controlled electric enrichment valve device

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