EP0343515A3 - Device for regulating the air input flow rate to an internal combustion engine carburettor - Google Patents

Device for regulating the air input flow rate to an internal combustion engine carburettor Download PDF

Info

Publication number
EP0343515A3
EP0343515A3 EP89108969A EP89108969A EP0343515A3 EP 0343515 A3 EP0343515 A3 EP 0343515A3 EP 89108969 A EP89108969 A EP 89108969A EP 89108969 A EP89108969 A EP 89108969A EP 0343515 A3 EP0343515 A3 EP 0343515A3
Authority
EP
European Patent Office
Prior art keywords
regulating
flow rate
internal combustion
combustion engine
air input
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.)
Withdrawn
Application number
EP89108969A
Other languages
German (de)
French (fr)
Other versions
EP0343515A2 (en
Inventor
Giovanni Manfre'
Andrea Carnio
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.)
Fiat Auto SpA
Original Assignee
Fiat Auto SpA
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 Fiat Auto SpA filed Critical Fiat Auto SpA
Publication of EP0343515A2 publication Critical patent/EP0343515A2/en
Publication of EP0343515A3 publication Critical patent/EP0343515A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • F02D41/04—Introducing corrections for particular operating conditions
    • F02D41/06—Introducing corrections for particular operating conditions for engine starting or warming up
    • F02D41/062—Introducing corrections for particular operating conditions for engine starting or warming up for starting
    • F02D41/067—Introducing corrections for particular operating conditions for engine starting or warming up for starting with control of the choke
    • 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
    • F02D31/004—Electric control of rotation speed controlling air supply for idle speed control by controlling a throttle stop
    • 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
    • F02M1/10—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 engine temperature, e.g. having thermostat
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2201/00—Metals
    • F05C2201/02—Light metals
    • F05C2201/021—Aluminium

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

A device for regulating the air input flow rate to an internal combustion engine carburettor during cold-starting is described; the device consists of a butterfly valve disposed upstream of the carburettor diffuser, elastic opposition means, an actuator operated by the engine temperature increase, and mechanical transmission means connecting the actuator, the opposition means and the butterfly valve together in such a manner as to keep this latter normally closed when the engine is cold; the actuator incorporates a shape memory element (SME) arranged to selectively assume, as a function of the instantaneous engine temperature, a plurality of predetermined shapes.
EP89108969A 1988-05-27 1989-05-18 Device for regulating the air input flow rate to an internal combustion engine carburettor Withdrawn EP0343515A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT5318388U 1988-05-27
IT5318388U IT214591Z2 (en) 1988-05-27 1988-05-27 DEVICE FOR ADJUSTING THE INTAKE AIR FLOW RATE IN A CARBURETOR OF AN ENDOTHERMAL ENGINE

Publications (2)

Publication Number Publication Date
EP0343515A2 EP0343515A2 (en) 1989-11-29
EP0343515A3 true EP0343515A3 (en) 1990-06-13

Family

ID=11280641

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89108969A Withdrawn EP0343515A3 (en) 1988-05-27 1989-05-18 Device for regulating the air input flow rate to an internal combustion engine carburettor

Country Status (2)

Country Link
EP (1) EP0343515A3 (en)
IT (1) IT214591Z2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5511519A (en) * 1994-07-05 1996-04-30 Homelite, Inc. Temperature adjusting automatic choke system
FR2732650A1 (en) * 1995-04-04 1996-10-11 Id Ingenierie Shape memory device for speed regulation of motor vehicle
DE10006231A1 (en) * 2000-02-11 2001-08-30 Siemens Ag Actuator for internal combustion engine exhaust gas system does not require external power supply, is very cheap to manufacture and requires little space - has shape memory alloy element suitable for high temp. that exerts setting or control function depending on temp. of exhaust gas
DE10106724B4 (en) * 2001-02-14 2007-12-13 Robert Bosch Gmbh Device for decoupling an actuator from a transmission
EP1724452B1 (en) * 2005-05-11 2008-07-09 Magneti Marelli Powertrain S.p.A. A tumble system for the intake manifold of an internal combustion engine with an actuator made with shape memory material

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0029789A1 (en) * 1979-11-23 1981-06-03 Societe Industrielle De Brevets Et D'etudes S.I.B.E. Carburettor comprising an auxiliary starting device
US4700682A (en) * 1985-01-18 1987-10-20 Toyota Jidosha Kabushiki Kaisha Fuel vapor control device

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56165798A (en) * 1980-05-23 1981-12-19 Hitachi Ltd Air bleed device for axial flow compressor
JPS588254A (en) * 1981-07-03 1983-01-18 Nippon Carbureter Co Ltd Choke device in carburettor
JPS63215844A (en) * 1987-03-05 1988-09-08 Mikuni Kogyo Co Ltd Throttle valve control device for engine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0029789A1 (en) * 1979-11-23 1981-06-03 Societe Industrielle De Brevets Et D'etudes S.I.B.E. Carburettor comprising an auxiliary starting device
US4700682A (en) * 1985-01-18 1987-10-20 Toyota Jidosha Kabushiki Kaisha Fuel vapor control device

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, vol. 13006 (M-781) 9th January 1989; & JP-A-63 215 844 (MIKUNI KOGYO CO. LTD.) 08-09-1988 *
PATENT ABSTRACTS OF JAPAN, vol. 6050 (M-120) 3rd March 1982; & JP-A-56 165 798 (HITACHI LTD) 19-12-1981 *
PATENT ABSTRACTS OF JAPAN, vol. 7, no. 81 (M-205)[1226] 5th April 1983; & JP-A-58 008 254 (NIHON KIKAKI SEISAKUSHO K.K.) 18-01-83 *

Also Published As

Publication number Publication date
IT214591Z2 (en) 1990-05-09
EP0343515A2 (en) 1989-11-29
IT8853183V0 (en) 1988-05-27

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