JPS5752659A - Diaphragm type carburetor - Google Patents
Diaphragm type carburetorInfo
- 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
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
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) |
-
1980
- 1980-09-17 JP JP12876580A patent/JPS5752659A/en active Pending
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