GB1487964A - Carburetter for an internal combustion engine - Google Patents

Carburetter for an internal combustion engine

Info

Publication number
GB1487964A
GB1487964A GB4402174A GB4402174A GB1487964A GB 1487964 A GB1487964 A GB 1487964A GB 4402174 A GB4402174 A GB 4402174A GB 4402174 A GB4402174 A GB 4402174A GB 1487964 A GB1487964 A GB 1487964A
Authority
GB
United Kingdom
Prior art keywords
carburetter
aperture
wall
valve
valves
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
GB4402174A
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.)
Alfa Romeo SpA
Original Assignee
Alfa Romeo 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 Alfa Romeo SpA filed Critical Alfa Romeo SpA
Publication of GB1487964A publication Critical patent/GB1487964A/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
    • F02M19/00—Details, component parts, or accessories of carburettors, not provided for in, or of interest apart from, the apparatus of groups F02M1/00 - F02M17/00
    • F02M19/02—Metering-orifices, e.g. variable in diameter
    • 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
    • F02M17/00—Carburettors having pertinent characteristics not provided for in, or of interest apart from, the apparatus of preceding main groups F02M1/00 - F02M15/00
    • F02M17/08—Carburettors having one or more fuel passages opening in a valve-seat surrounding combustion-air passage, the valve being opened by passing air
    • F02M17/09—Carburettors having one or more fuel passages opening in a valve-seat surrounding combustion-air passage, the valve being opened by passing air the valve being of an eccentrically mounted butterfly type
    • 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
    • F02M7/00—Carburettors with means for influencing, e.g. enriching or keeping constant, fuel/air ratio of charge under varying conditions
    • F02M7/12—Other installations, with moving parts, for influencing fuel/air ratio, e.g. having valves
    • F02M7/22—Other installations, with moving parts, for influencing fuel/air ratio, e.g. having valves fuel flow cross-sectional area being controlled dependent on air-throttle-valve position

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

1487964 Spray carburetters ALFA ROMEO SpA 10 Oct 1974 [10 Oct 1973] 44021/74 Heading F1H [Also in Division F2] A fuel metering orifice 37 in a carburetter is defined by an aperture 38 in a thin wall 36 relative to and against which a further thin wall 35 is slidable to vary the effective flow cross-section of the aperture dependent upon the position of the induction passage air valve 12. The valve 12 is operated in response to operation of the throttle valve 14 by a diaphragm 21 subject to the pressure between the valves or by a mechanical linkage between the valves, Figs. 2 and 3 (not shown), or the air valve (164), Fig. 5 (not shown) may be an eccentrically mounted spring-biased valve. The aperture (127), Fig. 4 (not shown), may be formed in the end-wall (126) of an angularly adjustable hollow plug (121) to provide varying registry with an aperture (129) in a wall (128) mounted for calibration adjustment. Slot apertures (195, 196, 204), Figs. 6 and 7 (not shown), defining variable orifices each supplying a respective induction passage of a carburetter have their effective flow cross-sections controlled by respective angularly movable walls (183, 184, Fig. 6), or by the wall of a hollow cylinder (202, Fig. 7), axially movable within a cylinder (203) defining the apertures. To control the air-fuel ratio of the mixture supplied by the carburetter the emulsion well (142, Figs. 4 and 5), may be vented to the constant level fuel chamber (137) which has vents (154, 155) controlled by respective needle valves (156, 157) operated by a bi-metal strip (158) responsive to engine temperature and a bellows (159) responsive to ambient temperature and pressure, respectively.
GB4402174A 1973-10-10 1974-10-10 Carburetter for an internal combustion engine Expired GB1487964A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT2997473A IT995765B (en) 1973-10-10 1973-10-10 VACUUM CARBURETOR CHECK TA

Publications (1)

Publication Number Publication Date
GB1487964A true GB1487964A (en) 1977-10-05

Family

ID=11228785

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4402174A Expired GB1487964A (en) 1973-10-10 1974-10-10 Carburetter for an internal combustion engine

Country Status (4)

Country Link
DE (1) DE2448442A1 (en)
FR (1) FR2247623A1 (en)
GB (1) GB1487964A (en)
IT (1) IT995765B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015025337A3 (en) * 2013-08-23 2015-04-23 G R Bharath Sai Kumar Method, system and apparatus for supplying air and fuel mixture to a combustion chamber

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2357744A2 (en) * 1976-07-09 1978-02-03 Sibe IC engine carburettor system - meters fuel quantity using sleeve sliding over opening in side of cylinder
JPS5327725A (en) * 1976-08-26 1978-03-15 Chiyoda Chem Eng & Constr Co Ltd Fuel feeding method in spark ignition engine
JPS57500523A (en) * 1980-03-31 1982-03-25
US4318868A (en) * 1980-03-31 1982-03-09 Automotive Engine Associates Analog carburetor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015025337A3 (en) * 2013-08-23 2015-04-23 G R Bharath Sai Kumar Method, system and apparatus for supplying air and fuel mixture to a combustion chamber

Also Published As

Publication number Publication date
IT995765B (en) 1975-11-20
FR2247623A1 (en) 1975-05-09
DE2448442A1 (en) 1975-04-24

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee