ES8401572A1 - Pneumatic control device for a carburettor air throttle of an internal combustion engine. - Google Patents

Pneumatic control device for a carburettor air throttle of an internal combustion engine.

Info

Publication number
ES8401572A1
ES8401572A1 ES520266A ES520266A ES8401572A1 ES 8401572 A1 ES8401572 A1 ES 8401572A1 ES 520266 A ES520266 A ES 520266A ES 520266 A ES520266 A ES 520266A ES 8401572 A1 ES8401572 A1 ES 8401572A1
Authority
ES
Spain
Prior art keywords
air throttle
drive element
subjected
engine
capsule
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.)
Expired
Application number
ES520266A
Other languages
Spanish (es)
Other versions
ES520266A0 (en
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.)
Renault SAS
Regie Nationale des Usines Renault
Original Assignee
Renault SAS
Regie Nationale des Usines Renault
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 Renault SAS, Regie Nationale des Usines Renault filed Critical Renault SAS
Publication of ES8401572A1 publication Critical patent/ES8401572A1/en
Publication of ES520266A0 publication Critical patent/ES520266A0/en
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
    • F02M1/00—Carburettors with means for facilitating engine's starting or its idling below operational temperatures
    • F02M1/02—Carburettors with means for facilitating engine's starting or its idling below operational temperatures the means to facilitate starting or idling being chokes for enriching fuel-air mixture
    • 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
    • F02M1/00—Carburettors with means for facilitating engine's starting or its idling below operational temperatures
    • F02M1/08—Carburettors with means for facilitating engine's starting or its idling below operational temperatures the means to facilitate starting or idling becoming operative or inoperative automatically
    • F02M1/14—Carburettors with means for facilitating engine's starting or its idling below operational temperatures the means to facilitate starting or idling becoming operative or inoperative automatically dependent on pressure in combustion-air- or fuel-air-mixture intake

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
  • Means For Warming Up And Starting Carburetors (AREA)

Abstract

1. A device for pneumatically controlling the air throttle member of a carburettor for an internal combustion engine, in which carburettor, during operation of the engine in the cold condition, the pivotal movement of the air throttle member is controlled in dependence on the engine load between a position of minimum opening corresponding to the full load operating condition of the engine and a position of a maximum opening corresponding to a low load operating condition of the engine, said control device (16) comprising a capsule (101) having two chambers (101A, 101B) which are separated by a drive element (106) connected to the air throttle member by a linkage and subjected to the force of a return spring (107) urging the drive element (106) in the direction of tending to close the air throttle member, the first (101A) of the two chambers being subjected to atmospheric pressure and the second chamber (101B) being subjected to the depression of the intake manifold, characterised in that the second chamber (101B) has an orifice (101C) for forming a controlled communication with atmosphere, that the control device comprises a second capsule (102) which operates in a differential mode and which is adapted to open the orifice (101C) in response to small variations in the depression in the intake manifold, that the second capsule (102) comprises a drive element (112) which is fixed with respect to a rod (111) which at its free end carries a closure member (110) for controlling closure of the orifice (101C) for controlled communication with atmosphere, and that the drive element (112) of the second capsule (102) defines a first chamber (102A) directly subjected to the depression of the intake manifold by way of a conduit (113) and a second chamber (102B) subjected to the depression of the intake manifold by way of another conduit (115) in which there is disposed a calibration means (116), a return spring (114) urging the drive element (112) in the direction of tending to close the orifice (101C) for controlled communication with atmosphere.
ES520266A 1982-03-04 1983-03-03 PNEUMATIC CONTROL DEVICE FOR THE AIR VALVE OF AN INTERNAL COMBUSTION ENGINE CARBURETOR. Granted ES520266A0 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8203574A FR2522729A1 (en) 1982-03-04 1982-03-04 PNEUMATIC CONTROL DEVICE FOR THE AIR FLAP OF A CARBURETOR FOR AN INTERNAL COMBUSTION ENGINE

Publications (2)

Publication Number Publication Date
ES8401572A1 true ES8401572A1 (en) 1983-12-01
ES520266A0 ES520266A0 (en) 1983-12-01

Family

ID=9271572

Family Applications (1)

Application Number Title Priority Date Filing Date
ES520266A Granted ES520266A0 (en) 1982-03-04 1983-03-03 PNEUMATIC CONTROL DEVICE FOR THE AIR VALVE OF AN INTERNAL COMBUSTION ENGINE CARBURETOR.

Country Status (4)

Country Link
EP (1) EP0088678B1 (en)
DE (1) DE3361260D1 (en)
ES (1) ES520266A0 (en)
FR (1) FR2522729A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3864914D1 (en) * 1987-06-15 1991-10-24 Stihl Maschf Andreas AUTOMATIC START FOR A COMBUSTION ENGINE, IN PARTICULAR FOR THE MANUAL ENGINE OF A WORKING MACHINE.
DE3842974A1 (en) * 1988-12-21 1990-06-28 Stihl Maschf Andreas DIAPHRAGM CARBURETTOR WITH POSITIONALLY COUPLED THROTTLE VALVE AND CHOKE VALVE

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3930475A (en) * 1973-08-24 1976-01-06 Ford Motor Company Engine exhaust gas recirculating control
JPS5234512Y2 (en) * 1974-11-30 1977-08-06
FR2393161A1 (en) * 1977-06-02 1978-12-29 Sibe IMPROVEMENTS FOR CARBURETTORS EQUIPPED WITH A STARTING ASPECT

Also Published As

Publication number Publication date
DE3361260D1 (en) 1986-01-02
ES520266A0 (en) 1983-12-01
EP0088678A1 (en) 1983-09-14
EP0088678B1 (en) 1985-11-21
FR2522729B1 (en) 1984-05-04
FR2522729A1 (en) 1983-09-09

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