JPS6121856U - Fuel increase device when starting variable bench lily type carburetor - Google Patents
Fuel increase device when starting variable bench lily type carburetorInfo
- Publication number
- JPS6121856U JPS6121856U JP10618684U JP10618684U JPS6121856U JP S6121856 U JPS6121856 U JP S6121856U JP 10618684 U JP10618684 U JP 10618684U JP 10618684 U JP10618684 U JP 10618684U JP S6121856 U JPS6121856 U JP S6121856U
- Authority
- JP
- Japan
- Prior art keywords
- negative pressure
- carburetor
- fuel
- solenoid valve
- pressure control
- 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
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来例を示す側断面図、第２図は本考案の一実
施例の全体の構成を示す側断面図、第３図は本実施例で
の制御回路の回路構成を示すブロック図、第４図イは且
回転数設定器によって設定される設定値とエンジン回転
数信号との関係を示す線図、第４図口は回転数設定器と
エンジン回転数信号とが一致してからタイマーが所定の
時限動作を開始する様子を示す線図、第５図は設定器と
比較器とタイム設定器とによって設定されるエンジン温
度とタイマーの遅延時間との関係を示す線図、第６図は
比較器とタイマーの回路構成を示す回路図である。
３・・・サクションピストン、４川ニードル、６・・・
スロットル弁、２１・・・計量ジェット、３１・・・負
圧制御弁、８４・・・第１負圧室、１１０・・・電磁弁
。Figure 1 is a side sectional view showing a conventional example, Figure 2 is a side sectional view showing the overall configuration of an embodiment of the present invention, and Figure 3 is a block diagram showing the circuit configuration of the control circuit in this embodiment. , Figure 4 A is a diagram showing the relationship between the set value set by the rotation speed setting device and the engine rotation speed signal, and the opening in Figure 4 is a diagram showing the relationship between the setting value set by the rotation speed setting device and the engine rotation speed signal. A diagram showing how the timer starts a predetermined timed operation, FIG. 5 is a diagram showing the relationship between the engine temperature set by the setting device, the comparator, and the time setting device and the delay time of the timer, and FIG. The figure is a circuit diagram showing the circuit configuration of a comparator and a timer. 3...Suction piston, 4 river needle, 6...
Throttle valve, 21... Metering jet, 31... Negative pressure control valve, 84... First negative pressure chamber, 110... Solenoid valve.
Claims (1)
ションピストンと、該サクションピストンに連結された
二一ドルと、該二一ドルが侵入可能なように該二一ドル
の軸線方向に伸びる燃料通路と、該燃料通路内に設けら
れて該二一ドルと協動ずる計量ジェットとを具備した可
変ベンチュリ型気化器であって、前記気化器のスロット
ル弁の下流の吸気通路内の負圧によってポートが開閉さ
れる負圧制御弁を設け、この負圧制御弁を介して前記サ
クションピストンの負王室を大気と連通させ、かつ前記
負圧制御弁には前記吸気通路内の負圧の作用を制御する
電磁弁を設け、更にこの電磁弁はエンジン回転数を検出
して、エンジンが自力運転を開始した後所定時間経過後
に前記電磁弁を作動させて、前記吸気通路内の負圧を前
記負圧制御弁へ所定時間経過後に作用させる構成にした
ことを特徴とする可変ベンチュリ型気化器の始動時にお
ける燃料増量装置。A suction piston that changes the area of the venturi in response to the amount of intake air, a twenty-one dollar connected to the suction piston, and fuel extending in the axial direction of the twenty-one dollar so that the twenty one dollar can enter. a variable venturi carburetor comprising a passageway and a metering jet disposed in the fuel passageway and cooperating with the fuel passageway, the carburetor being controlled by negative pressure in the intake passageway downstream of a throttle valve of the carburetor; A negative pressure control valve whose port is opened and closed is provided, the negative end of the suction piston is communicated with the atmosphere through the negative pressure control valve, and the negative pressure control valve is controlled by the negative pressure in the intake passage. A solenoid valve is provided to control the solenoid valve, and the solenoid valve detects the engine rotation speed and operates the solenoid valve after a predetermined period of time has elapsed after the engine starts running on its own to reduce the negative pressure in the intake passage. 1. A fuel increasing device at the time of starting a variable venturi type carburetor, characterized in that the device is configured to act on a pressure control valve after a predetermined period of time has elapsed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10618684U JPS6121856U (en) | 1984-07-12 | 1984-07-12 | Fuel increase device when starting variable bench lily type carburetor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10618684U JPS6121856U (en) | 1984-07-12 | 1984-07-12 | Fuel increase device when starting variable bench lily type carburetor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6121856U true JPS6121856U (en) | 1986-02-08 |
Family
ID=30665483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10618684U Pending JPS6121856U (en) | 1984-07-12 | 1984-07-12 | Fuel increase device when starting variable bench lily type carburetor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6121856U (en) |
-
1984
- 1984-07-12 JP JP10618684U patent/JPS6121856U/en active Pending
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