JPS5543239A - Constant negative pressure type carburetor - Google Patents

Constant negative pressure type carburetor

Info

Publication number
JPS5543239A
JPS5543239A JP11559378A JP11559378A JPS5543239A JP S5543239 A JPS5543239 A JP S5543239A JP 11559378 A JP11559378 A JP 11559378A JP 11559378 A JP11559378 A JP 11559378A JP S5543239 A JPS5543239 A JP S5543239A
Authority
JP
Japan
Prior art keywords
negative pressure
operation valve
case
valve
throttle valve
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
JP11559378A
Other languages
Japanese (ja)
Inventor
Hirohisa Nakada
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 JP11559378A priority Critical patent/JPS5543239A/en
Publication of JPS5543239A publication Critical patent/JPS5543239A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To reduce the variation of air fuel ratio by controlling the introduction of negative pressure to the negative pressure chamber of a constant negative pressure type carburetor by means of a throttle valve and a negative pressure operation valve and making proper the movement of the negative pressure operation valve in the range from low speed to high speed.
CONSTITUTION: With a diaphragm 7 which divides into a negative pressure chamber 8 and an air chamber 9, a negative pressure operation valve 3 which fixed a needle 4 is fixed. The negative pressure chamber 8 communicates to the inside of an intake pipe 1 between the operation valve 3 and a throttle valve 2 on the back of the operation valve through communication pipes 24 and 26 equipped with a plunger case 21. Into the case 21, a plunger 19 which links with the operation valve 3 through links 14 and 18 is inserted, and opening and closing operation of both communication pipes 24 and 26 is performed. Further, the case 21 is linked with the throttle valve 2 through a link 27, and the case 21 is moved up and down. Accordingly, in low speed, the case 21 is moved upward according to the degree of opening of the throttle valve 2, and the proper opening degree of the operation valve 3 is determined.
COPYRIGHT: (C)1980,JPO&Japio
JP11559378A 1978-09-19 1978-09-19 Constant negative pressure type carburetor Pending JPS5543239A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11559378A JPS5543239A (en) 1978-09-19 1978-09-19 Constant negative pressure type carburetor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11559378A JPS5543239A (en) 1978-09-19 1978-09-19 Constant negative pressure type carburetor

Publications (1)

Publication Number Publication Date
JPS5543239A true JPS5543239A (en) 1980-03-27

Family

ID=14666437

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11559378A Pending JPS5543239A (en) 1978-09-19 1978-09-19 Constant negative pressure type carburetor

Country Status (1)

Country Link
JP (1) JPS5543239A (en)

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