JPS62148772U - - Google Patents
Info
- Publication number
- JPS62148772U JPS62148772U JP3574486U JP3574486U JPS62148772U JP S62148772 U JPS62148772 U JP S62148772U JP 3574486 U JP3574486 U JP 3574486U JP 3574486 U JP3574486 U JP 3574486U JP S62148772 U JPS62148772 U JP S62148772U
- Authority
- JP
- Japan
- Prior art keywords
- fuel
- piping
- solenoid valve
- pump
- return
- 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
- 239000002828 fuel tank Substances 0.000 claims description 3
- 239000000446 fuel Substances 0.000 claims 9
- 230000005856 abnormality Effects 0.000 claims 1
- 238000002347 injection Methods 0.000 claims 1
- 239000007924 injection Substances 0.000 claims 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Fuel-Injection Apparatus (AREA)
Description
第１図、第２図はこの考案の一実施例を示す系
統図であり、第１図は正常時の状態を示す図、第
２図は異常時の状態を示す図である。
１ａ〜１ｄ……インジエクタ、２……燃料タン
ク、３……デリバリ配管、４……デリバリポンプ
、５……リターン配管、６……リターンポンプ、
７……バイパス管路、８……ワンウエイバルブ、
１０……コントロールユニツト、１１……プレツ
シヤレギユレータ、１２……吸入管、１３……負
圧通路、１４……ソレノイド弁である。
FIGS. 1 and 2 are system diagrams showing an embodiment of this invention, with FIG. 1 showing a normal state and FIG. 2 showing an abnormal state. 1a to 1d... Injector, 2... Fuel tank, 3... Delivery piping, 4... Delivery pump, 5... Return piping, 6... Return pump,
7...Bypass pipe line, 8...One-way valve,
10... Control unit, 11... Pressure regulator, 12... Suction pipe, 13... Negative pressure passage, 14... Solenoid valve.
Claims (1)
ポンプと燃圧をほぼ一定に保持するプレツシヤレ
ギユレータとを設けるとともに、プレツシヤレギ
ユレータからの余剰燃料を燃料タンク内へ戻すフ
ユーエルリターン配管にリターンポンプを設け、 さらに上記リターンポンプをバイパスするバイ
パス管路にワンウエイバルブを設け、 かつプレツシヤレギユレータの負圧室と吸入管
を連通する負圧通路に常開のソレノイド弁を設け
て、 通常時は上記リターンポンプおよびそソレノイ
ド弁を作動させず、インジエクタ異常時には上記
フユーエルデリバリポンプを停止して上記リター
ンポンプとソレノイド弁を作動させ、配管内の燃
料を燃料タンク内へ戻すようにしたことを特徴と
する燃料噴射装置。[Scope of Claim for Utility Model Registration] The fuel delivery piping is equipped with a fuel delivery pump and a pressure regulator that maintains the fuel pressure almost constant, and the excess fuel from the pressure regulator is transferred into the fuel tank. A return pump is installed in the fuel return piping that returns to An open solenoid valve is installed so that the return pump and solenoid valve are not operated under normal conditions, but when an injector abnormality occurs, the fuel delivery pump is stopped and the return pump and solenoid valve are operated to drain the fuel in the piping. A fuel injection device characterized in that the fuel is returned into a fuel tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3574486U JPS62148772U (en) | 1986-03-12 | 1986-03-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3574486U JPS62148772U (en) | 1986-03-12 | 1986-03-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62148772U true JPS62148772U (en) | 1987-09-19 |
Family
ID=30845506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3574486U Pending JPS62148772U (en) | 1986-03-12 | 1986-03-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62148772U (en) |
-
1986
- 1986-03-12 JP JP3574486U patent/JPS62148772U/ja active Pending
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