JPH02122159U - - Google Patents
Info
- Publication number
- JPH02122159U JPH02122159U JP3013589U JP3013589U JPH02122159U JP H02122159 U JPH02122159 U JP H02122159U JP 3013589 U JP3013589 U JP 3013589U JP 3013589 U JP3013589 U JP 3013589U JP H02122159 U JPH02122159 U JP H02122159U
- Authority
- JP
- Japan
- Prior art keywords
- fuel
- pressure
- pump
- tank
- main tank
- 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.)
- Granted
Links
- 239000000446 fuel Substances 0.000 claims description 24
- 239000002828 fuel tank Substances 0.000 claims description 4
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims 1
- 238000007599 discharging Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 1
Landscapes
- Jet Pumps And Other Pumps (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Description
第１図ないし第３図は本考案に係り、第１図は
圧力センサが設けられた燃料吸引ポンプを示す斜
視図、第２図は圧力センサおよび電圧制御装置を
含む制御系の全体構成を示すブロツク図、第３図
は電圧制御装置による制御処理を示す流れ図、第
４図ないし第７図は従来技術に係り、第４図は燃
料噴射装置を示す全体構成図、第５図は燃料ポン
プを示す一部破断正面図、第６図は燃料吸引ポン
プを示す縦断面図、第７図はリターン流路内にお
ける戻り油の燃圧と燃温との関係を示す特性線図
である。
１……燃料タンク、１Ａ……メインタンク部、
１Ｂ……サブタンク部、５……燃料ポンプ、１０
……供給配管、１２……圧力レギユレータ、１６
……リターン配管、３１……燃料吸引ポンプ、３
５……圧力センサ、３６……電圧制御装置。
Figures 1 to 3 relate to the present invention; Figure 1 is a perspective view showing a fuel suction pump equipped with a pressure sensor, and Figure 2 shows the overall configuration of a control system including a pressure sensor and a voltage control device. The block diagram, FIG. 3 is a flowchart showing the control process by the voltage control device, FIGS. 4 to 7 are related to the prior art, FIG. 4 is an overall configuration diagram showing the fuel injection device, and FIG. 5 is a diagram showing the fuel pump. 6 is a longitudinal sectional view showing the fuel suction pump, and FIG. 7 is a characteristic diagram showing the relationship between the fuel pressure and fuel temperature of return oil in the return passage. 1...Fuel tank, 1A...Main tank section,
1B...Sub tank part, 5...Fuel pump, 10
... Supply piping, 12 ... Pressure regulator, 16
... Return piping, 31 ... Fuel suction pump, 3
5...Pressure sensor, 36...Voltage control device.
Claims (1)
タンクと、該燃料タンクのメインタンク部側に設
けられ、燃料を吐出する燃料ポンプと、該燃料ポ
ンプに接続され、該燃料ポンプから吐出された燃
料を燃料噴射弁側に供給する供給配管と、該供給
配管内の燃圧を制御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の戻り油を前記燃料
タンクのメインタンク部側に還流させるリターン
配管と、該リターン配管のメインタンク部側先端
に設けられ、前記サブタンク部内の燃料を前記メ
インタンク部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、前記圧力レギユレー
タからリターン配管を介して前記燃料吸引ポンプ
に至るリターン流路に設けられ、戻り油の燃圧を
測定する圧力センサと、該圧力センサからの検出
信号により前記燃料ポンプへの印加電圧を制御す
る電圧制御装置とを有し、前記リターン流路内の
戻り油の燃圧が設定値を越えたときは前記燃料ポ
ンプへの印加電圧を降下させ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 part and a sub-tank part, a fuel pump provided on the main tank part side of the fuel tank and discharging fuel, and a fuel pump connected to the fuel pump to inject the fuel discharged from the fuel pump. A supply pipe that supplies to the valve side, a pressure regulator that controls the fuel pressure in the supply pipe, a return pipe that returns excess return oil from the pressure regulator to the main tank side of the fuel tank, and the return pipe. A fuel injection device comprising a fuel suction pump that is provided at the tip of the main tank section and sucks fuel in the sub-tank section into the main tank section side, from the pressure regulator to the fuel suction pump via a return pipe. A pressure sensor provided in the return flow path measures the fuel pressure of return oil, and a voltage control device that controls the voltage applied to the fuel pump based on a detection signal from the pressure sensor. A fuel injection device characterized in that the voltage applied to the fuel pump is reduced when the fuel pressure of return oil exceeds a set value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3013589U JPH0541260Y2 (en) | 1989-03-16 | 1989-03-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3013589U JPH0541260Y2 (en) | 1989-03-16 | 1989-03-16 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02122159U true JPH02122159U (en) | 1990-10-05 |
| JPH0541260Y2 JPH0541260Y2 (en) | 1993-10-19 |
Family
ID=31254930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3013589U Expired - Lifetime JPH0541260Y2 (en) | 1989-03-16 | 1989-03-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0541260Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011043122A (en) * | 2009-08-21 | 2011-03-03 | Bosch Corp | Abnormality diagnostic device for pressure sensor, method for diagnosing abnormality of pressure sensor, and accumulator fuel injection device |
-
1989
- 1989-03-16 JP JP3013589U patent/JPH0541260Y2/ja not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011043122A (en) * | 2009-08-21 | 2011-03-03 | Bosch Corp | Abnormality diagnostic device for pressure sensor, method for diagnosing abnormality of pressure sensor, and accumulator fuel injection device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0541260Y2 (en) | 1993-10-19 |