JPS5991456U - Internal combustion engine fuel control device - Google Patents
Internal combustion engine fuel control deviceInfo
- Publication number
- JPS5991456U JPS5991456U JP18813482U JP18813482U JPS5991456U JP S5991456 U JPS5991456 U JP S5991456U JP 18813482 U JP18813482 U JP 18813482U JP 18813482 U JP18813482 U JP 18813482U JP S5991456 U JPS5991456 U JP S5991456U
- Authority
- JP
- Japan
- Prior art keywords
- diaphragm
- diaphragm chamber
- valve
- chamber
- fuel
- 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
(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
図は、本考案に係る内燃機関の燃料制御装置のシステム
全体図である。
１・・・・・・気化器、２・・・・・・吸気マニホール
ド、３・・・・・・補助加速ポンプ、４・・・・・・空
気供給弁、５・・・・・・負圧切替弁、６・・・・・・
ダイヤフラム、７・・・・・・第１のダイヤフラム室、
８・・・・・・第２のダイヤフラム室、９・・・・・・
圧縮コイルばね、１０・・・・・・入口、１１・・・・
・・出口、１２・・・・・・燃料供給通路、１３・・・
・・・フロー１−室、１４・・・・・・燃料吐出通路、
１５・・・・・・スロットル弁、１６・・・・・・吸気
通路、１７・・・・・・補助加速ノズル、１８・・・・
・・チェックバルブ、２１・・・・・・チェックバルブ
、２２・・・・・・バルブハウジング、２３・・・・・
・ダイヤフラム、２４・・・・・・上部ダイヤフラム室
、２５・・・・・・下部ダイヤフラム室、２６・・・・
・・入口ポート、２７・・・・・・出口ポート、２９・
・・・・・空気パイプ、３０・・・・・・圧縮コイルば
ね、３１・・・・・・オリフィス、３２・・・・・・弁
体、４８・・・・・・負圧供給導管、５０・・・・・・
第１の負圧供給導管、５１・・・・・・第２の負圧供給
導管。The figure is an overall system diagram of a fuel control device for an internal combustion engine according to the present invention. 1... Carburizer, 2... Intake manifold, 3... Auxiliary acceleration pump, 4... Air supply valve, 5... Negative Pressure switching valve, 6...
Diaphragm, 7...first diaphragm chamber,
8...Second diaphragm chamber, 9...
Compression coil spring, 10... Inlet, 11...
...Exit, 12...Fuel supply passage, 13...
...Flow 1-chamber, 14...Fuel discharge passage,
15...Throttle valve, 16...Intake passage, 17...Auxiliary acceleration nozzle, 18...
... Check valve, 21 ... Check valve, 22 ... Valve housing, 23 ...
・Diaphragm, 24... Upper diaphragm chamber, 25... Lower diaphragm chamber, 26...
...Inlet port, 27...Outlet port, 29.
... Air pipe, 30 ... Compression coil spring, 31 ... Orifice, 32 ... Valve body, 48 ... Negative pressure supply conduit, 50...
First negative pressure supply conduit, 51...Second negative pressure supply conduit.
Claims (1)
該補助加速ポンプは、気化器本体内をダ゛・ イヤフ
ラムによって区画された第１のダイヤフラム室と第２の
ダイヤフラム室とを有し、該第１のダイヤフラム室には
前記ダイヤフラムを押圧する圧縮コイルばねが配置され
ており、該第２のダイヤフラム室には入口と出口が設け
られ、該入口は燃料供給通路を介してフロート室下部に
連通され、該燃料供給通路の途中には前記第２のダイヤ
フラム室−・向う燃料の流れのみを許容するチェックバ
ルブが設けられ、前記出口は燃料吐出通路を介してスロ
ットル弁上流の吸気通路に突出した補助加速ノズルに連
通され、該燃料吐出通路の途中には該加速ノズルへ向う
燃料の流れのみを許容するチェックバルブが設けられ、
前記空気供給弁は、バルブハウジング内をダイヤフラム
によって区画された上部ダイヤフラム室と下部ダイヤフ
ラム室とを有し、該上部ダイヤフラム室には入゛ロポー
トと出口ボートが設けられ、該入口ポートは大気に連通
され、該出口ポートは前記補助加速ポンプの第１のダイ
ヤフラム室に連通され、前記下部ダイヤフラム室には前
記ダイヤフラムを押圧するための圧縮コイルばねが配置
されており、前記ダイヤフラムにはオリフィスが穿設さ
れ、前記ダイヤフラムには前記入口ポートを開閉する弁
体が取付けられ、前記負圧切替弁は、エンジン冷却水温
が所定値以下のときは、吸気マニホールドと前記補助加
速ポンプの第１のダイヤフラムを連通させ、エンジン冷
却水温が前記所定値よりも高いときは、前記吸気マニホ
ールドと前記空気供給弁の下部ダイヤフラム室とを連通
させることを特徴とする内燃機関の燃料制御装置。Consists of an auxiliary acceleration pump, an air supply valve, and a negative pressure switching valve,
The auxiliary acceleration pump has a first diaphragm chamber and a second diaphragm chamber partitioned by a diaphragm in the carburetor body, and the first diaphragm chamber includes a compression coil that presses the diaphragm. A spring is arranged, the second diaphragm chamber is provided with an inlet and an outlet, the inlet is communicated with the lower part of the float chamber via a fuel supply passage, and the second diaphragm chamber is provided in the middle of the fuel supply passage. A check valve is provided that allows only the flow of fuel toward the diaphragm chamber, and the outlet communicates with an auxiliary acceleration nozzle projecting into the intake passage upstream of the throttle valve via a fuel discharge passage, and a check valve is provided in the middle of the fuel discharge passage. is provided with a check valve that only allows fuel to flow toward the accelerating nozzle;
The air supply valve has an upper diaphragm chamber and a lower diaphragm chamber partitioned by a diaphragm in the valve housing, and the upper diaphragm chamber is provided with an inlet port and an outlet boat, and the inlet port communicates with the atmosphere. and the outlet port communicates with a first diaphragm chamber of the auxiliary acceleration pump, a compression coil spring for pressing the diaphragm is disposed in the lower diaphragm chamber, and an orifice is bored in the diaphragm. A valve body for opening and closing the inlet port is attached to the diaphragm, and the negative pressure switching valve communicates the intake manifold with the first diaphragm of the auxiliary acceleration pump when the engine cooling water temperature is below a predetermined value. and when the engine cooling water temperature is higher than the predetermined value, the intake manifold and the lower diaphragm chamber of the air supply valve are communicated with each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18813482U JPS5991456U (en) | 1982-12-13 | 1982-12-13 | Internal combustion engine fuel control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18813482U JPS5991456U (en) | 1982-12-13 | 1982-12-13 | Internal combustion engine fuel control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5991456U true JPS5991456U (en) | 1984-06-21 |
Family
ID=30405933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18813482U Pending JPS5991456U (en) | 1982-12-13 | 1982-12-13 | Internal combustion engine fuel control device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5991456U (en) |
-
1982
- 1982-12-13 JP JP18813482U patent/JPS5991456U/en active Pending
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