GB1224610A - Improvements in/or relating to carburation devices for internal combustion engines - Google Patents

Improvements in/or relating to carburation devices for internal combustion engines

Info

Publication number
GB1224610A
GB1224610A GB1760769A GB1760769A GB1224610A GB 1224610 A GB1224610 A GB 1224610A GB 1760769 A GB1760769 A GB 1760769A GB 1760769 A GB1760769 A GB 1760769A GB 1224610 A GB1224610 A GB 1224610A
Authority
GB
United Kingdom
Prior art keywords
orifice
mixture
chamber
fuel
obturator
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
GB1760769A
Inventor
Guenter Haertel
Karl-Heinz Zahr
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.)
Societe Industrielle de Brevets et dEtudes SIBE
Original Assignee
Societe Industrielle de Brevets et dEtudes SIBE
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 Societe Industrielle de Brevets et dEtudes SIBE filed Critical Societe Industrielle de Brevets et dEtudes SIBE
Publication of GB1224610A publication Critical patent/GB1224610A/en
Expired 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
    • 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
    • F02M13/00—Arrangements of two or more separate carburettors; Carburettors using more than one fuel
    • F02M13/02—Separate carburettors
    • F02M13/026—Common functional groups for several carburettors, e.g. common idling system
    • 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
    • F02M3/08—Other details of idling devices
    • F02M3/12—Passageway systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of The Air-Fuel Ratio Of Carburetors (AREA)

Abstract

1,224,610. Spray carburettors. SOC INDUSTRIELLE DE BREVETS ET D'ETUDES. April 3, 1969 [April 8, 1968], No.17607/69. Heading F1B. In a carburettor having a principal feed circuit 6, 9, 8, Fig. 1, an idle circuit 17, 4 and a transfer circuit 19, 5, the idle circuit comprises at least one air inlet 22 and a fuel inlet 15 having respectively metering orifices 13, 11 and leading into a mixture channel 17 having an adjustable constriction 25, the mixture channel having a by-pass 28 which is opened automatically during periods of deceleration when the throttle member 3 is closed or almost closed. Idling: mixture is supplied exclusively via channel 17 in quantity regulated by screw 26 in orifice 25, when an electromagnet 44 is not energized an obturator 43 closes communication between a chamber 40 and the main mixture supply passage 1. The absence of a depression in chamber 40 allows a spring 42 to act on membrane 37 thereby seating obturator 39 in orifice 38 to close the by-pass 28. Deceleration: A known system 34 for counting the number of ignition breaks per unit time passes current through a conductor 35 when the engine speed is above a given limit to energize the electromagnet 44 thereby opening valve 43. The prevailing pressure in supply conduit 1 is transmitted to chamber 40 thereby raising membrane 37 to unseat obturator 39. The fuel/air mixture flowing through by-pass 28 is added to that flowing through orifice 25 and the total quantity that it is necessary to introduce during deceleration is determined by the pre-set screw 46. In another embodiment two carburetters are supplied by a common mixture channel (17), Fig.3 (not shown) supplied from fuel and air orifices (11a, 11b) (24a, 24b) which open into each Venturi throat (10a, 10b). In modifications the fuel for the idle and transfer circuits can be taken from chamber 6 upstream of orifice 9, the channels 17 and 19 can be connected to the conduit 1 downstream of throat 10 and orifice 13 can be omitted.
GB1760769A 1968-04-08 1969-04-03 Improvements in/or relating to carburation devices for internal combustion engines Expired GB1224610A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR147389 1968-04-08

Publications (1)

Publication Number Publication Date
GB1224610A true GB1224610A (en) 1971-03-10

Family

ID=8648708

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1760769A Expired GB1224610A (en) 1968-04-08 1969-04-03 Improvements in/or relating to carburation devices for internal combustion engines

Country Status (3)

Country Link
DE (1) DE1907002A1 (en)
FR (1) FR1569857A (en)
GB (1) GB1224610A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4373502A (en) * 1980-10-16 1983-02-15 Miletech, Inc. Fuel control system

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1379783A (en) * 1971-03-11 1975-01-08 Nissan Motor Multi-carburetor system including an auxiliary fuel supply system
FR2452002A1 (en) * 1979-03-22 1980-10-17 Sibe IMPROVEMENTS IN CARBURETOR DEVICES FOR INTERNAL COMBUSTION ENGINES
JPS5749046A (en) * 1980-09-05 1982-03-20 Hitachi Ltd Correcting device of carburetor for idling revolution
US6026782A (en) * 1997-10-01 2000-02-22 Siemens Canada Limited Throttle body and bracket arrangement

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4373502A (en) * 1980-10-16 1983-02-15 Miletech, Inc. Fuel control system

Also Published As

Publication number Publication date
FR1569857A (en) 1969-06-06
DE1907002A1 (en) 1970-01-29

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