JPS5647648A - Variable venturi carburetor - Google Patents

Variable venturi carburetor

Info

Publication number
JPS5647648A
JPS5647648A JP12221379A JP12221379A JPS5647648A JP S5647648 A JPS5647648 A JP S5647648A JP 12221379 A JP12221379 A JP 12221379A JP 12221379 A JP12221379 A JP 12221379A JP S5647648 A JPS5647648 A JP S5647648A
Authority
JP
Japan
Prior art keywords
air
fuel
throttle
needle
behind
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.)
Granted
Application number
JP12221379A
Other languages
Japanese (ja)
Other versions
JPS626098B2 (en
Inventor
Hisaharu Arai
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.)
Aisan Industry Co Ltd
Original Assignee
Aisan Industry 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 Aisan Industry Co Ltd filed Critical Aisan Industry Co Ltd
Priority to JP12221379A priority Critical patent/JPS5647648A/en
Publication of JPS5647648A publication Critical patent/JPS5647648A/en
Publication of JPS626098B2 publication Critical patent/JPS626098B2/ja
Granted legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To facilitate atomizatio of fuel in a variable venturi carburetor in which bleed air is feed-back controlled by introducing air from a small hole formed through the outer peripheral wall of a mixing chamber.
CONSTITUTION: The rate of air-fuel mixture to be injected into a venturi portion 11 is determined by the movement of a suction piston 7, on the top end of which a metering needle 5 is fixed. Into a jet portion 6 through which the needle 5 is advanced and retreated, feed-back controlled bleed air is admitted through a throttle 16 of an air passage, while fuel is introduced via a throttle 18. A by-pass air passage 17 communicating to a space 26 behind the needle 5 is formed upstream the throttle 16. Through the outer peripheral wall of a mixing chamber 19 into which air and fuel are introduced, a small hole is provided in such a way that air is satisfactorily mixed with fuel and by-pass air is introduced from an annular space 26 behind the hole 20.
COPYRIGHT: (C)1981,JPO&Japio
JP12221379A 1979-09-21 1979-09-21 Variable venturi carburetor Granted JPS5647648A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12221379A JPS5647648A (en) 1979-09-21 1979-09-21 Variable venturi carburetor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12221379A JPS5647648A (en) 1979-09-21 1979-09-21 Variable venturi carburetor

Publications (2)

Publication Number Publication Date
JPS5647648A true JPS5647648A (en) 1981-04-30
JPS626098B2 JPS626098B2 (en) 1987-02-09

Family

ID=14830348

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12221379A Granted JPS5647648A (en) 1979-09-21 1979-09-21 Variable venturi carburetor

Country Status (1)

Country Link
JP (1) JPS5647648A (en)

Also Published As

Publication number Publication date
JPS626098B2 (en) 1987-02-09

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