JPS56538A - Fuel increasing device in acceleration for carburettor - Google Patents
Fuel increasing device in acceleration for carburettorInfo
- Publication number
- JPS56538A JPS56538A JP7602079A JP7602079A JPS56538A JP S56538 A JPS56538 A JP S56538A JP 7602079 A JP7602079 A JP 7602079A JP 7602079 A JP7602079 A JP 7602079A JP S56538 A JPS56538 A JP S56538A
- Authority
- JP
- Japan
- Prior art keywords
- negative pressure
- control valve
- chamber
- acceleration
- diaphragm 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 make it possible to increase fuel in proportion to various accelerating conditions by a method wherein one diaphragm chamber of an actuator which controls a flow control valve is communicated directly to an intake pipe in the downstream of a throttle valve and the other diaphragm chamber is communicated to the pipe through a negative pressure control valve.
CONSTITUTION: In acceleration, negative pressure in an intake pipe decreases rapidly, and this negative pressure change is transmitted to an actuator 30 through a pipe passage 31 from a port 27. Pressure in a diaphragm chamber 33 varies then following that negative pressure change, whereas negative pressure in a diaphragm chamber 32 decreases slowly since the pressure is transmitted only with an orifice 42 in a start of the negative pressure in the intake pipe by an action of a negative pressure control valve 40 which has a check valve 41 and the orifice 42 provided in parallel. Accordingly, negative pressure is larger in the chamber 32 in acceleration than in the chamber 33, which makes a diaphragm 34 move to the right side against a spring 38 to open a flow control valve 37. With this action, fuel increased by a fuel discharge port 25 is discharged.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7602079A JPS56538A (en) | 1979-06-15 | 1979-06-15 | Fuel increasing device in acceleration for carburettor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7602079A JPS56538A (en) | 1979-06-15 | 1979-06-15 | Fuel increasing device in acceleration for carburettor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS56538A true JPS56538A (en) | 1981-01-07 |
Family
ID=13593136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7602079A Pending JPS56538A (en) | 1979-06-15 | 1979-06-15 | Fuel increasing device in acceleration for carburettor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56538A (en) |
-
1979
- 1979-06-15 JP JP7602079A patent/JPS56538A/en active Pending
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