FR2432613A1 - METHOD FOR CONTROLLING THE SLOW MOTION OF AN ENGINE AND VALVE FOR CARRYING OUT SUCH A METHOD - Google Patents

METHOD FOR CONTROLLING THE SLOW MOTION OF AN ENGINE AND VALVE FOR CARRYING OUT SUCH A METHOD

Info

Publication number
FR2432613A1
FR2432613A1 FR7919861A FR7919861A FR2432613A1 FR 2432613 A1 FR2432613 A1 FR 2432613A1 FR 7919861 A FR7919861 A FR 7919861A FR 7919861 A FR7919861 A FR 7919861A FR 2432613 A1 FR2432613 A1 FR 2432613A1
Authority
FR
France
Prior art keywords
engine
increase
fuel supply
admitted
exhaust
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Withdrawn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
FR7919861A
Other languages
French (fr)
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.)
Canadian Fram Ltd
Original Assignee
Canadian Fram 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 Canadian Fram Ltd filed Critical Canadian Fram Ltd
Publication of FR2432613A1 publication Critical patent/FR2432613A1/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Withdrawn legal-status Critical Current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
    • F02D35/00—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for
    • F02D35/0015—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for using exhaust gas sensors
    • F02D35/0023—Controlling air supply
    • F02D35/003—Controlling air supply by means of by-pass passages
    • 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
    • F02M23/00—Apparatus for adding secondary air to fuel-air mixture
    • F02M23/04—Apparatus for adding secondary air to fuel-air mixture with automatic control
    • F02M23/08—Apparatus for adding secondary air to fuel-air mixture with automatic control dependent on pressure in main combustion-air induction system, e.g. pneumatic-type apparatus
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

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

Une valve de commande assure le maintien d'une vitesse constante de ralenti malgré les variations de la charge supportée par le moteur d'un véhicule. Le moteur comprend une commande d'alimentation en carburant comportant un détecteur d'oxygène placé à l'échappement qui mesure la concentration en oxygène des gaz d'échappement et règle en conséquence la quantité de carburant admise au moteur. La valve de commande est sensible à la dépression dans la tubulure d'admission pour injecter dans cette dernière un débit d'air secondaire en réponse à une diminution de la dépression, représentative d'un accroissement de la charge. L'augmentation du débit d'air admis dans la tubulure provoque l'augmentation de la concentration en oxygène à l'échappement, détectée par le détecteur d'oxygène comme représentative d'une alimentation pauvre en carburant. La commande d'alimentation en carburant provoque en conséquence un accroissement du débit de carburant admis dans le moteur afin d'augmenter la vitesse de ralenti. Application aux moteurs à combustion interne, en particulier d'automobiles.A control valve ensures that a constant idle speed is maintained despite variations in the load on a vehicle's engine. The engine comprises a fuel supply control comprising an oxygen sensor placed at the exhaust which measures the oxygen concentration of the exhaust gases and accordingly regulates the quantity of fuel admitted to the engine. The control valve is sensitive to the vacuum in the intake manifold to inject a secondary air flow into the latter in response to a decrease in vacuum, representative of an increase in load. The increase in the flow of air admitted into the tubing causes an increase in the oxygen concentration in the exhaust, detected by the oxygen detector as representative of a lean fuel supply. The fuel supply control consequently causes an increase in the flow of fuel admitted into the engine in order to increase the idling speed. Application to internal combustion engines, in particular automobiles.

FR7919861A 1978-08-03 1979-08-02 METHOD FOR CONTROLLING THE SLOW MOTION OF AN ENGINE AND VALVE FOR CARRYING OUT SUCH A METHOD Withdrawn FR2432613A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US93062478A 1978-08-03 1978-08-03

Publications (1)

Publication Number Publication Date
FR2432613A1 true FR2432613A1 (en) 1980-02-29

Family

ID=25459533

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7919861A Withdrawn FR2432613A1 (en) 1978-08-03 1979-08-02 METHOD FOR CONTROLLING THE SLOW MOTION OF AN ENGINE AND VALVE FOR CARRYING OUT SUCH A METHOD

Country Status (5)

Country Link
JP (1) JPS5523389A (en)
DE (1) DE2927749A1 (en)
FR (1) FR2432613A1 (en)
GB (1) GB2027124A (en)
IT (1) IT1122670B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3039613C2 (en) * 1980-10-21 1983-11-17 Pierburg Gmbh & Co Kg, 4040 Neuss System for regulating the idling speed of gasoline engines
JPH0697000B2 (en) * 1984-04-24 1994-11-30 マツダ株式会社 Air-fuel ratio controller for engine
JP2006219216A (en) * 2005-02-08 2006-08-24 Ishikawajima Transport Machinery Co Ltd Floating crane and ratchet mechanism

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB342554A (en) * 1930-02-21 1931-02-05 Arthur Harriman Moss Improvements in or relating to devices for the supply of auxiliary air to internal combustion engines
DE2360621A1 (en) * 1972-12-16 1974-07-04 Nippon Denso Co CONTROL SYSTEM FOR COMBUSTION MACHINERY
DE2529663A1 (en) * 1972-04-22 1977-01-27 Bosch Gmbh Robert DEVICE FOR REGULATING THE MASS RATIO OF THE FUEL-AIR MIXTURE SUPPLIED TO A COMBUSTION ENGINE
FR2372967A1 (en) * 1976-12-06 1978-06-30 Bayerische Motoren Werke Ag ADJUSTING DEVICE FOR THE ROTATION SPEED IN NO LOAD OF INTERNAL COMBUSTION ENGINES

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB342554A (en) * 1930-02-21 1931-02-05 Arthur Harriman Moss Improvements in or relating to devices for the supply of auxiliary air to internal combustion engines
DE2529663A1 (en) * 1972-04-22 1977-01-27 Bosch Gmbh Robert DEVICE FOR REGULATING THE MASS RATIO OF THE FUEL-AIR MIXTURE SUPPLIED TO A COMBUSTION ENGINE
DE2360621A1 (en) * 1972-12-16 1974-07-04 Nippon Denso Co CONTROL SYSTEM FOR COMBUSTION MACHINERY
FR2372967A1 (en) * 1976-12-06 1978-06-30 Bayerische Motoren Werke Ag ADJUSTING DEVICE FOR THE ROTATION SPEED IN NO LOAD OF INTERNAL COMBUSTION ENGINES

Also Published As

Publication number Publication date
IT7924839A0 (en) 1979-08-01
IT1122670B (en) 1986-04-23
GB2027124A (en) 1980-02-13
DE2927749A1 (en) 1980-02-14
JPS5523389A (en) 1980-02-19

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Legal Events

Date Code Title Description
ST Notification of lapse