GB1142318A - Improvements in or relating to carburetters - Google Patents

Improvements in or relating to carburetters

Info

Publication number
GB1142318A
GB1142318A GB3623766A GB3623766A GB1142318A GB 1142318 A GB1142318 A GB 1142318A GB 3623766 A GB3623766 A GB 3623766A GB 3623766 A GB3623766 A GB 3623766A GB 1142318 A GB1142318 A GB 1142318A
Authority
GB
United Kingdom
Prior art keywords
passage
air flow
valve
controlled
air
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
GB3623766A
Inventor
Geoffrey Lloyd Lawrence
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.)
Zenith Carburetter Co Ltd
Original Assignee
Zenith Carburetter Co 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 Zenith Carburetter Co Ltd filed Critical Zenith Carburetter Co Ltd
Priority to GB3623766A priority Critical patent/GB1142318A/en
Priority to US658778A priority patent/US3456929A/en
Priority to DEZ11409U priority patent/DE1973194U/en
Priority to DE19671576646 priority patent/DE1576646A1/en
Priority to SE1134767A priority patent/SE311780B/xx
Priority to ES344321A priority patent/ES344321A1/en
Publication of GB1142318A publication Critical patent/GB1142318A/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
    • 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
    • F02M7/14—Other installations, with moving parts, for influencing fuel/air ratio, e.g. having valves with means for controlling cross-sectional area of fuel spray nozzle
    • F02M7/16—Other installations, with moving parts, for influencing fuel/air ratio, e.g. having valves with means for controlling cross-sectional area of fuel spray nozzle operated automatically, e.g. dependent on exhaust-gas analysis
    • F02M7/17—Other installations, with moving parts, for influencing fuel/air ratio, e.g. having valves with means for controlling cross-sectional area of fuel spray nozzle operated automatically, e.g. dependent on exhaust-gas analysis by a pneumatically adjustable piston-like element, e.g. constant depression carburettors
    • 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
    • F02M7/14—Other installations, with moving parts, for influencing fuel/air ratio, e.g. having valves with means for controlling cross-sectional area of fuel spray nozzle
    • F02M7/16—Other installations, with moving parts, for influencing fuel/air ratio, e.g. having valves with means for controlling cross-sectional area of fuel spray nozzle operated automatically, e.g. dependent on exhaust-gas analysis

Abstract

1,142,318. Spray carburetters. ZENITH CARBURETTER CO. Ltd. Aug. 1, 1967 [Aug. 12, 1966; April 20, 1967], Nos. 36237/66 and 18270/67. Heading F1B, In a carburetter, having a suction-operated air valve 12 co-operating with a induction passage wall 15 to provide a variable throat 16, the air flow into the mixing chamber 22 additional to the air flow through the throat is adjustable by at least one valve 43 in a passage 42, 37 through which a part of the additional air flows. Slide valve 12 is connected to a movable diaphragm 24 biased by spring 29 and acted on by ambient pressure in a chamber 26 and the pressure in mixing chamber 22 which is communicated via opening 27. A pump (not shown) supplies fuel to chamber 32 through an inlet valve (not shown) controlled by a pivoted float 33. A fuel jet 34, controlled by a tapered needle 35 carried by the slide valve 12, enables fuel to be drawn into the passage 11 by air flow across the jet 34. The adjustable air passage 42, 37 enables the total additional air flow of nominally identical carburetters to be standardized thus compensating for the leakages associated with the working clearances of the slide valve 12. A sealing disc 46 may be fitted in a counterbore 41 over screw-threaded plug 43. Diaphragm 24 may be replaced by a piston sliding in a cylinder. A further passage 47, Fig. 2, controlled by a screw-threaded plug 52 having a tapered needle 53, is provided for a fine adjustment of the additional air after coarse setting of the screw plug 43 is completed.
GB3623766A 1966-08-12 1966-08-12 Improvements in or relating to carburetters Expired GB1142318A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
GB3623766A GB1142318A (en) 1966-08-12 1966-08-12 Improvements in or relating to carburetters
US658778A US3456929A (en) 1966-08-12 1967-08-07 Carburetters
DEZ11409U DE1973194U (en) 1966-08-12 1967-08-09 ARRANGEMENT IN AIR VALVE CARBURETTORS FOR COMBUSTION MACHINES.
DE19671576646 DE1576646A1 (en) 1966-08-12 1967-08-09 Arrangement for air valve carburetors for internal combustion engines
SE1134767A SE311780B (en) 1966-08-12 1967-08-10
ES344321A ES344321A1 (en) 1966-08-12 1967-08-11 Carburetters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3623766A GB1142318A (en) 1966-08-12 1966-08-12 Improvements in or relating to carburetters

Publications (1)

Publication Number Publication Date
GB1142318A true GB1142318A (en) 1969-02-05

Family

ID=10386244

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3623766A Expired GB1142318A (en) 1966-08-12 1966-08-12 Improvements in or relating to carburetters

Country Status (1)

Country Link
GB (1) GB1142318A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2290349A (en) * 1994-06-17 1995-12-20 Ricardo Consulting Eng Fuel supply in crankcase scavenged two-stroke engines
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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2290349A (en) * 1994-06-17 1995-12-20 Ricardo Consulting Eng Fuel supply in crankcase scavenged two-stroke engines
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

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