JPS6424150A - Variable venturi type carburetor - Google Patents

Variable venturi type carburetor

Info

Publication number
JPS6424150A
JPS6424150A JP18075687A JP18075687A JPS6424150A JP S6424150 A JPS6424150 A JP S6424150A JP 18075687 A JP18075687 A JP 18075687A JP 18075687 A JP18075687 A JP 18075687A JP S6424150 A JPS6424150 A JP S6424150A
Authority
JP
Japan
Prior art keywords
opening
air
predetermined value
venturi
increases
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
JP18075687A
Other languages
Japanese (ja)
Inventor
Yasushi Mishiro
Hiroyuki Ueda
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP18075687A priority Critical patent/JPS6424150A/en
Publication of JPS6424150A publication Critical patent/JPS6424150A/en
Pending legal-status Critical Current

Links

Landscapes

  • Control Of The Air-Fuel Ratio Of Carburetors (AREA)

Abstract

PURPOSE:To prevent an overrich zone of air-fuel ratio from appearing in every operating region by partly opening a movable valve, which variably controls the passage area of a Venturi part, being associated with a throttle valve when its opening increases to a predetermined value or more. CONSTITUTION:When a throttle valve 3, provided in an intake cylinder 2 in a carburetor main unit 1, increases the opening and a flow amount of air in a Venturi part 5, metered fuel in a primary main jet 10 is mixed with the metered air in a primary main air bleed 9, and the mixture is jetted to the Venturi part 5 from a primary main nozzle 8. When the opening of the throttle valve 3 reaches a predetermined value, a cam plate 31, constituting an interlocking means 30, engages a cam surface 31a with a pawl part 32 of a lever 13, partly opening a movable valve 11. As the result, the Venturi part 5 increases its passage area, suppressing a Venturi negative pressure from increasing to the predetermined value or more. Thereafter, fuel is sucked from a secondary main nozzle 17.
JP18075687A 1987-07-20 1987-07-20 Variable venturi type carburetor Pending JPS6424150A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18075687A JPS6424150A (en) 1987-07-20 1987-07-20 Variable venturi type carburetor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18075687A JPS6424150A (en) 1987-07-20 1987-07-20 Variable venturi type carburetor

Publications (1)

Publication Number Publication Date
JPS6424150A true JPS6424150A (en) 1989-01-26

Family

ID=16088769

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18075687A Pending JPS6424150A (en) 1987-07-20 1987-07-20 Variable venturi type carburetor

Country Status (1)

Country Link
JP (1) JPS6424150A (en)

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