JPS5543239A - Constant negative pressure type carburetor - Google Patents
Constant negative pressure type carburetorInfo
- 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
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
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) |
-
1978
- 1978-09-19 JP JP11559378A patent/JPS5543239A/en active Pending
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