JPH01158550U - - Google Patents
Info
- Publication number
- JPH01158550U JPH01158550U JP5044688U JP5044688U JPH01158550U JP H01158550 U JPH01158550 U JP H01158550U JP 5044688 U JP5044688 U JP 5044688U JP 5044688 U JP5044688 U JP 5044688U JP H01158550 U JPH01158550 U JP H01158550U
- Authority
- JP
- Japan
- Prior art keywords
- fuel
- tank
- main tank
- tank side
- 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 16
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 5
- 239000002828 fuel tank Substances 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Feeding And Controlling Fuel (AREA)
Description
第１図ないし第３図は本考案の実施例を示し、
第１図は燃料噴射装置の要部縦断面図、第２図は
制御装置等のブロツク図、第３図は切換処理動作
を示す流れ図、第４図および第５図は従来技術を
示し、第４図は燃料噴射装置の全体構成図、第５
図は第４図中の燃料吸引ポンプを拡大して示す縦
断面図である。
１……燃料タンク、１Ａ……メインタンク、１
Ｂ……サブタンク、９……燃料ポンプ、１０……
吐出配管、１２……圧力レギユレータ、１３……
燃料噴射弁、１４……供給配管、１７……リター
ン配管、１８……燃料吸引ポンプ、２１……切換
弁、２１Ａ……流入ポート、２１Ｂ，２１Ｃ……
流出ポート、２２……分岐配管、２３……液面セ
ンサ（液面検出器）、２４……制御装置、Ｈ０，
Ｈ１，Ｈ２……液位。
1 to 3 show embodiments of the present invention,
Fig. 1 is a vertical sectional view of the main part of the fuel injection device, Fig. 2 is a block diagram of the control device, etc., Fig. 3 is a flowchart showing the switching processing operation, Figs. 4 and 5 show the conventional technology, and Fig. Figure 4 is the overall configuration diagram of the fuel injection system, Figure 5
This figure is an enlarged vertical cross-sectional view of the fuel suction pump in FIG. 4. 1...Fuel tank, 1A...Main tank, 1
B...Subtank, 9...Fuel pump, 10...
Discharge piping, 12...Pressure regulator, 13...
Fuel injection valve, 14... Supply piping, 17... Return piping, 18... Fuel suction pump, 21... Switching valve, 21A... Inflow port, 21B, 21C...
Outflow port, 22... Branch pipe, 23... Liquid level sensor (liquid level detector), 24... Control device, H 0 ,
H 1 , H 2 ...Liquid level.
Claims (1)
クと、該燃料タンクのメインタンク側に設けられ
た燃料ポンプと、該燃料ポンプから吐出された燃
料を噴射弁に供給する供給配管と、該供給配管内
の燃圧を調整する圧力レギユレータと、該圧力レ
ギユレータからの余剰油を前記燃料タンクのメイ
ンタンク側にリターンさせるリターン配管と、該
リターン配管の先端側に設けられ、前記余剰油の
リターン流を利用して前記サブタンク内の燃料を
メインタンク側に吸引する燃料吸引ポンプとから
なる燃料噴射装置において、前記リターン配管の
途中には、前記余剰油を前記燃料吸引ポンプ側と
メインタンク側に直接流出させる分岐側とに選択
的に切換える三方口の切換弁を設け、前記サブタ
ンク側には燃料残量を検出する液面検出器を設け
、該液面検出器からの検出信号に基づき前記切換
弁を切換制御する構成としたことを特徴とする燃
料噴射装置。 A fuel tank consisting of a main tank and a sub-tank, a fuel pump provided on the main tank side of the fuel tank, a supply pipe that supplies fuel discharged from the fuel pump to the injection valve, and a fuel pressure inside the supply pipe. A pressure regulator to be adjusted; a return pipe for returning excess oil from the pressure regulator to the main tank side of the fuel tank; In a fuel injection device that includes a fuel suction pump that sucks fuel inside the tank into the main tank side, the return piping is provided with a branch side that directly drains the excess oil to the fuel suction pump side and the main tank side. A three-way switching valve that selectively switches is provided, a liquid level detector for detecting the remaining amount of fuel is provided on the sub-tank side, and the switching valve is controlled based on a detection signal from the liquid level detector. A fuel injection device characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5044688U JPH01158550U (en) | 1988-04-14 | 1988-04-14 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5044688U JPH01158550U (en) | 1988-04-14 | 1988-04-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01158550U true JPH01158550U (en) | 1989-11-01 |
Family
ID=31276497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5044688U Pending JPH01158550U (en) | 1988-04-14 | 1988-04-14 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01158550U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015021483A (en) * | 2013-07-23 | 2015-02-02 | 愛三工業株式会社 | Sensor device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62214263A (en) * | 1986-03-13 | 1987-09-21 | Nippon Denso Co Ltd | Fuel feed pump device |
-
1988
- 1988-04-14 JP JP5044688U patent/JPH01158550U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62214263A (en) * | 1986-03-13 | 1987-09-21 | Nippon Denso Co Ltd | Fuel feed pump device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015021483A (en) * | 2013-07-23 | 2015-02-02 | 愛三工業株式会社 | Sensor device |