JPS57124061A - Compound carburetter - Google Patents

Compound carburetter

Info

Publication number
JPS57124061A
JPS57124061A JP1006681A JP1006681A JPS57124061A JP S57124061 A JPS57124061 A JP S57124061A JP 1006681 A JP1006681 A JP 1006681A JP 1006681 A JP1006681 A JP 1006681A JP S57124061 A JPS57124061 A JP S57124061A
Authority
JP
Japan
Prior art keywords
throttle valve
negative pressure
nozzle
opening
enrichment
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.)
Pending
Application number
JP1006681A
Other languages
Japanese (ja)
Inventor
Kunio Kikuchi
Tomokatsu Sato
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.)
Mikuni Corp
Original Assignee
Mikuni Corp
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 Mikuni Corp filed Critical Mikuni Corp
Priority to JP1006681A priority Critical patent/JPS57124061A/en
Publication of JPS57124061A publication Critical patent/JPS57124061A/en
Pending 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
    • F02M7/133—Auxiliary jets, i.e. operating only under certain conditions, e.g. full power

Abstract

PURPOSE:To improve the air-fuel ratio when a throttle valve is fully opened by providing the opening of an enrichment nozzle on the downstream side of another throttle valve equipped between the throttle valve and a main system fuel injection part and opening the latter throttle valve by a cam and negative pressure. CONSTITUTION:The opening of an enrichment nozzle 15 is provided on the downstream of a throttle valve 12 equipped in a mixing chamber 13 between a main nozzle 14 and another throttle valve 5, while the throttle valve 12 is characterized to be forcedly opened by a cam 17 until the opening degree of a medium speed area and then by a actuator 18 reacting to the resultant negative pressure of a negative pressure in a Venturi tube part 3 and that in the downstream of the throttle valve 12 until a high speed area. When the throttle valve 5 is fully opened at a low speed, according as the negative pressure in the Venturi tube is reduced, the throttle valve 12 is inclined to be closed. The negative pressure between both throttle valves 5 and 12 in the chamber 13 is increased to operate the enrichment system, and fuel is injected from the nozzle 15 to prevent the delay of the main system fuel.
JP1006681A 1981-01-26 1981-01-26 Compound carburetter Pending JPS57124061A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1006681A JPS57124061A (en) 1981-01-26 1981-01-26 Compound carburetter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1006681A JPS57124061A (en) 1981-01-26 1981-01-26 Compound carburetter

Publications (1)

Publication Number Publication Date
JPS57124061A true JPS57124061A (en) 1982-08-02

Family

ID=11740001

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1006681A Pending JPS57124061A (en) 1981-01-26 1981-01-26 Compound carburetter

Country Status (1)

Country Link
JP (1) JPS57124061A (en)

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