JPS55119939A - Fuel feeding device - Google Patents
Fuel feeding deviceInfo
- Publication number
- JPS55119939A JPS55119939A JP2576479A JP2576479A JPS55119939A JP S55119939 A JPS55119939 A JP S55119939A JP 2576479 A JP2576479 A JP 2576479A JP 2576479 A JP2576479 A JP 2576479A JP S55119939 A JPS55119939 A JP S55119939A
- Authority
- JP
- Japan
- Prior art keywords
- nozzle
- negative pressure
- fuel
- flow rate
- resistance member
- 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
Abstract
PURPOSE: To make manufacturing and idle adjusting easy by forming the needle straight tapered and compensating air-fuel ratio on the small flow rate range by changing the shape of the suction air measuring part of the fuel feeding device of the constant negative pressure carburetor type.
CONSTITUTION: The conical-shaped resistance member 4 to control negative pressure in the constant negative pressure chamber 27 at the bottom of the throat part 2 of the suction passage 1 almost constant corresponding to the suction air rate is provided to the throat part 2 of the suction passage 1. Also, at the downstream side of the resistance member 4, the fuel nozzle 19 which is connected to the float chamber 23 through the fuel passage 24 is provided, and the top of the straight- tapered needle 17 which is fixed at the resistance member 4 at it's base end is inserted into the nozzle 19. The said nozzle 19 is slidably fitted in the holding cylinder 29 to adjust the initial valve of the nozzle effective area. Also, by forming the annular concave part 31 as the compensating mechanism along the lower peripheral surface of the throat part 2, the flow rate characteristics of suction air in the small flow rate range can be made variable.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2576479A JPS55119939A (en) | 1979-03-06 | 1979-03-06 | Fuel feeding device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2576479A JPS55119939A (en) | 1979-03-06 | 1979-03-06 | Fuel feeding device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55119939A true JPS55119939A (en) | 1980-09-16 |
Family
ID=12174896
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2576479A Pending JPS55119939A (en) | 1979-03-06 | 1979-03-06 | Fuel feeding device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55119939A (en) |
-
1979
- 1979-03-06 JP JP2576479A patent/JPS55119939A/en active Pending
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