JPS5924971U - Internal combustion engine fuel injection system - Google Patents
Internal combustion engine fuel injection systemInfo
- Publication number
- JPS5924971U JPS5924971U JP11949482U JP11949482U JPS5924971U JP S5924971 U JPS5924971 U JP S5924971U JP 11949482 U JP11949482 U JP 11949482U JP 11949482 U JP11949482 U JP 11949482U JP S5924971 U JPS5924971 U JP S5924971U
- Authority
- JP
- Japan
- Prior art keywords
- fuel
- fuel injection
- passage
- mechanical pump
- internal combustion
- 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
- Fuel-Injection Apparatus (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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第1図は従来の燃料噴射装置の構成を模式的に示す構成
説明図、第2図はその燃料供給圧と機関回転数との関係
を示す特性図、第3図はこの考案□ に係る燃料噴射装
置の構成を模式的に示す構成説明図である。
21・・・機関本体、22・・・燃料タンク、23・・
・電動式フィードポンプ、27・・・メカニカルポンプ
、28・・・逆止弁、29・・・ダンパ、31・・・燃
料噴射弁、32・・・第1プレツシヤレギユレータ、3
3・・・リターン通路、34・・・第2プレツシヤレギ
ユレータ、35・・・バイパス通路、36・・・第1電
磁弁、37・・・リターン分岐通路、38・・・第2電
磁弁、40・・・コントロールユニット。
第2図
第3図Fig. 1 is a structural explanatory diagram schematically showing the structure of a conventional fuel injection device, Fig. 2 is a characteristic diagram showing the relationship between fuel supply pressure and engine speed, and Fig. 3 is a fuel injection device according to this invention. FIG. 2 is a configuration explanatory diagram schematically showing the configuration of an injection device. 21... Engine body, 22... Fuel tank, 23...
- Electric feed pump, 27... Mechanical pump, 28... Check valve, 29... Damper, 31... Fuel injection valve, 32... First pressure regulator, 3
3... Return passage, 34... Second pressure regulator, 35... Bypass passage, 36... First solenoid valve, 37... Return branch passage, 38... Second Solenoid valve, 40...control unit. Figure 2 Figure 3
Claims (1)
、機関出力により駆動され、上記電動式フィードポンプ
から吐出された燃料を加圧して燃料噴射弁に供給するメ
カニカルポンプと、上記メカニカルポンプをバイパスし
て上記フィードポンプ吐出側と燃料噴射弁とを直接に連
通ずるバイパス通路と、このバイパス通路に介装された
電磁弁と、上記燃料噴射弁にて噴射されなかった余剰燃
料を上記燃料タンクに戻すリターン通路と、このリター
ン通路とメカニカルポンプ吸入側とを連通して、上記余
剰燃料をメカニカルポンプに直接供給するリターン分岐
通路と、このリターン分岐通路に介装された電磁弁とを
備えてなる内燃機関の燃料噴射装置。An electric feed pump that sucks fuel from a fuel tank, a mechanical pump that is driven by engine output and pressurizes the fuel discharged from the electric feed pump and supplies it to the fuel injection valve, and a mechanical pump that bypasses the mechanical pump. A bypass passage that directly communicates the feed pump discharge side and the fuel injection valve, a solenoid valve installed in the bypass passage, and a return for returning excess fuel not injected by the fuel injection valve to the fuel tank. An internal combustion engine comprising: a passage; a return branch passage that communicates the return passage with a mechanical pump suction side to directly supply the surplus fuel to the mechanical pump; and a solenoid valve interposed in the return branch passage. fuel injector.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11949482U JPS5924971U (en) | 1982-08-06 | 1982-08-06 | Internal combustion engine fuel injection system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11949482U JPS5924971U (en) | 1982-08-06 | 1982-08-06 | Internal combustion engine fuel injection system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5924971U true JPS5924971U (en) | 1984-02-16 |
Family
ID=30274218
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11949482U Pending JPS5924971U (en) | 1982-08-06 | 1982-08-06 | Internal combustion engine fuel injection system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5924971U (en) |
-
1982
- 1982-08-06 JP JP11949482U patent/JPS5924971U/en active Pending
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