JPS63143757U - - Google Patents
Info
- Publication number
- JPS63143757U JPS63143757U JP3650687U JP3650687U JPS63143757U JP S63143757 U JPS63143757 U JP S63143757U JP 3650687 U JP3650687 U JP 3650687U JP 3650687 U JP3650687 U JP 3650687U JP S63143757 U JPS63143757 U JP S63143757U
- Authority
- JP
- Japan
- Prior art keywords
- passage
- fuel
- fuel supply
- pressure
- supply pump
- 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
- 239000000446 fuel Substances 0.000 claims description 10
- 239000002828 fuel tank Substances 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 238000002485 combustion reaction Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Fuel-Injection Apparatus (AREA)
Description
第１図は本考案の一実施例としての燃料供給装
置の概略構成図、第２図は同上装置に用いる常閉
負圧弁の断面図、第３図は従来装置の概略全体構
成図をそれぞれ示している。
１０……燃料タンク、１１……フイードポンプ
、１２……吸込路、１４……燃料噴射ポンプ、１
５……圧送路、１６……戻し路、１７……フイル
ター、１８……バイパス路、１９……常閉負圧弁
。
Fig. 1 is a schematic configuration diagram of a fuel supply system as an embodiment of the present invention, Fig. 2 is a sectional view of a normally closed negative pressure valve used in the same device, and Fig. 3 is a schematic overall configuration diagram of a conventional device. ing. 10...Fuel tank, 11...Feed pump, 12...Suction path, 14...Fuel injection pump, 1
5... Pressure feed path, 16... Return path, 17... Filter, 18... Bypass path, 19... Normally closed negative pressure valve.
Claims (1)
イルターを備えた吸込路と、上記燃料供給ポンプ
からの燃料を燃料噴射手段に導く圧送路と、上記
圧送路よりリークしてくる燃料を上記燃料タンク
に導く戻し路とを備えた内燃機関の燃料供給装置
において、上記戻し路と吸込路とを連通可能なバ
イパス路を形成し、上記バイパス路には上記燃料
供給ポンプの吸込圧が所要値を下回ると開作動す
る常閉負圧弁が取り付けられたことを特徴とする
内燃機関の燃料供給装置。 A suction passage that connects the fuel tank and the fuel supply pump and is equipped with a filter, a pressure passage that guides the fuel from the fuel supply pump to the fuel injection means, and a pressure passage that guides fuel leaking from the pressure passage to the fuel tank. In the fuel supply device for an internal combustion engine, the return passage is configured to form a bypass passage that can communicate with the suction passage, and the bypass passage is configured to open when the suction pressure of the fuel supply pump falls below a required value. A fuel supply device for an internal combustion engine, characterized in that an operative normally-closed negative pressure valve is attached.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3650687U JPS63143757U (en) | 1987-03-12 | 1987-03-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3650687U JPS63143757U (en) | 1987-03-12 | 1987-03-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63143757U true JPS63143757U (en) | 1988-09-21 |
Family
ID=30846970
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3650687U Pending JPS63143757U (en) | 1987-03-12 | 1987-03-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63143757U (en) |
-
1987
- 1987-03-12 JP JP3650687U patent/JPS63143757U/ja active Pending
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