JPS5752659A - Diaphragm type carburetor - Google Patents

Diaphragm type carburetor

Info

Publication number
JPS5752659A
JPS5752659A JP12876580A JP12876580A JPS5752659A JP S5752659 A JPS5752659 A JP S5752659A JP 12876580 A JP12876580 A JP 12876580A JP 12876580 A JP12876580 A JP 12876580A JP S5752659 A JPS5752659 A JP S5752659A
Authority
JP
Japan
Prior art keywords
negative pressure
venturi
fuel
chamber
pressure chamber
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
JP12876580A
Other languages
Japanese (ja)
Inventor
Satoru Araki
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.)
SHINAGAWA DAIKASUTO KOGYO KK
SHINAGAWA DIECAST KOGYO KK
Original Assignee
SHINAGAWA DAIKASUTO KOGYO KK
SHINAGAWA DIECAST KOGYO KK
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 SHINAGAWA DAIKASUTO KOGYO KK, SHINAGAWA DIECAST KOGYO KK filed Critical SHINAGAWA DAIKASUTO KOGYO KK
Priority to JP12876580A priority Critical patent/JPS5752659A/en
Publication of JPS5752659A publication Critical patent/JPS5752659A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To supply air fuel mixture of proper mixing ratio by connecting a negative pressure chamber which pressure controls a fuel pressure regulating chamber and a venturi part at the negative pressure passage to reduce the fuel supply in the fully opened high speed running region.
CONSTITUTION: A negative pressure chamber 7 which controls a fuel pressure regulating chamber 5 through a diaphragm 6 is connected to atmosphere via a vent port 9 which is formed with constriction, said negative pressure chamber also being connected to the narrowest part of a venturi 3 through a negative pressure passage 12 having a throttle valve 10 of a check valve construction and a construction 11. A valve body 15 is arranged to leave a valve seat 17 to introduce negative pressure into the negative pressure chamber 7 when the venturi negative pressure becomes larger than the load of a spring 16 thereby limitting the fuel flow rate increase. Thus the fuel supply is reduced to the flow rate required by an engine in the fully opened high speed running region during which period the venturi negative pressure is considerably high thereby supplying air fuel mixture of proper mixing ratio.
COPYRIGHT: (C)1982,JPO&Japio
JP12876580A 1980-09-17 1980-09-17 Diaphragm type carburetor Pending JPS5752659A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12876580A JPS5752659A (en) 1980-09-17 1980-09-17 Diaphragm type carburetor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12876580A JPS5752659A (en) 1980-09-17 1980-09-17 Diaphragm type carburetor

Publications (1)

Publication Number Publication Date
JPS5752659A true JPS5752659A (en) 1982-03-29

Family

ID=14992910

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12876580A Pending JPS5752659A (en) 1980-09-17 1980-09-17 Diaphragm type carburetor

Country Status (1)

Country Link
JP (1) JPS5752659A (en)

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