JPS5554653A - Carburetor - Google Patents
CarburetorInfo
- Publication number
- JPS5554653A JPS5554653A JP12718778A JP12718778A JPS5554653A JP S5554653 A JPS5554653 A JP S5554653A JP 12718778 A JP12718778 A JP 12718778A JP 12718778 A JP12718778 A JP 12718778A JP S5554653 A JPS5554653 A JP S5554653A
- Authority
- JP
- Japan
- Prior art keywords
- valve
- negative
- air
- passage
- negative pressure
- 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 prevent breathing phenomenon due to momentary reduction in fuel- air ratio in accelerating operation by eliminating overshoot phenomenon of the opening of a variable venturi portion.
CONSTITUTION: A negative-pressure transmission passage 14 for introducing the negative pressure present between a throttle valve and an air valve 11 is communicated with a diaphragm chamber 13 of a diaphragm device 12 which drives the air valve 11, and in the course of the passage 14 is arranged a negative-pressure regulating check valve 15 which is communicated with the atmosphere by opening of a valve. Therefore, in accelerating operation, a ball valve 18 parts from a valve seat 21 to open, and the atmospheric air is instantaneously introduced into the passage 14 through the opened orifice at the valve seat 21. Accordingly, since the negative pressure directed to the chamber 13 on the downstream side of the valve 15 is not increased rapidly but is controlled adequately, the valve 11 respondingly opens in such a manner as to keep the negative pressure inside a mixing chamber at a set value.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12718778A JPS5554653A (en) | 1978-10-16 | 1978-10-16 | Carburetor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12718778A JPS5554653A (en) | 1978-10-16 | 1978-10-16 | Carburetor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5554653A true JPS5554653A (en) | 1980-04-22 |
Family
ID=14953825
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12718778A Pending JPS5554653A (en) | 1978-10-16 | 1978-10-16 | Carburetor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5554653A (en) |
-
1978
- 1978-10-16 JP JP12718778A patent/JPS5554653A/en active Pending
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