JPH0264758U - - Google Patents
Info
- Publication number
- JPH0264758U JPH0264758U JP14274488U JP14274488U JPH0264758U JP H0264758 U JPH0264758 U JP H0264758U JP 14274488 U JP14274488 U JP 14274488U JP 14274488 U JP14274488 U JP 14274488U JP H0264758 U JPH0264758 U JP H0264758U
- Authority
- JP
- Japan
- Prior art keywords
- fuel
- engine
- pressure
- injection valve
- key switch
- 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 18
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 239000002828 fuel tank Substances 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 238000011144 upstream manufacturing Methods 0.000 claims 2
- 238000002485 combustion reaction Methods 0.000 claims 1
- 238000001514 detection method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Fuel-Injection Apparatus (AREA)
Description
第１図は本考案に係る一実施例を示すシステム
図、第２図及び第３図は制御内容を示すフローチ
ヤート、第４図は従来例を示すシステム図、第５
図及び第６図は従来の問題点を示す線図である。
１…燃料タンク、２…燃料ポンプ、３…フイル
タ、４…燃料配管、５…吸気管、６…燃料噴射弁
、７…プレツシヤレギユレータ、８…燃料戻し配
管、９…バイパス通路、１０…圧力調整弁、１１
…コントロールユニツト、１２…燃温センサ、１
３…エンジンキースイツチ。
Fig. 1 is a system diagram showing an embodiment of the present invention, Figs. 2 and 3 are flowcharts showing control contents, Fig. 4 is a system diagram showing a conventional example, and Fig. 5 is a system diagram showing an embodiment of the present invention.
6 and 6 are diagrams showing the problems of the conventional technology. 1... Fuel tank, 2... Fuel pump, 3... Filter, 4... Fuel piping, 5... Intake pipe, 6... Fuel injection valve, 7... Pressure regulator, 8... Fuel return piping, 9... Bypass passage, 10...Pressure regulating valve, 11
...Control unit, 12...Fuel temperature sensor, 1
3...Engine key switch.
Claims (1)
プと、機関吸気系へ燃料を噴射供給する燃料噴射
弁との間の燃料配管の途中に、余剰燃料を燃料タ
ンク内に戻して燃料噴射弁上流の燃料圧力を制御
するプレツシヤレギユレータを設ける他、これと
並列に、エンジンキースイツチオフ時に燃料温度
検出手段により検出される燃料温度が所定値以上
のときに開弁して燃料噴射弁上流の燃料圧力を低
下させエンジンキースイツチオン時に閉弁する圧
力調整弁を設けたことを特徴とする内燃機関の燃
料供給装置。 In the middle of the fuel piping between the fuel pump, which sucks and pumps fuel in the fuel tank, and the fuel injection valve, which injects and supplies fuel to the engine intake system, excess fuel is returned to the fuel tank and installed upstream of the fuel injection valve. In addition to providing a pressure regulator to control the fuel pressure, in parallel with this, the valve opens when the fuel temperature detected by the fuel temperature detection means at the time of engine key switch-off is above a predetermined value, and the pressure regulator is installed upstream of the fuel injection valve. 1. A fuel supply device for an internal combustion engine, comprising a pressure regulating valve that lowers the fuel pressure of the engine and closes when the engine key switch is turned on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14274488U JPH0264758U (en) | 1988-11-02 | 1988-11-02 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14274488U JPH0264758U (en) | 1988-11-02 | 1988-11-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0264758U true JPH0264758U (en) | 1990-05-15 |
Family
ID=31408953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14274488U Pending JPH0264758U (en) | 1988-11-02 | 1988-11-02 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0264758U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02233868A (en) * | 1989-03-08 | 1990-09-17 | Hitachi Ltd | Fuel supply system for internal combustion engine |
-
1988
- 1988-11-02 JP JP14274488U patent/JPH0264758U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02233868A (en) * | 1989-03-08 | 1990-09-17 | Hitachi Ltd | Fuel supply system for internal combustion engine |
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