JPH01145980U - - Google Patents
Info
- Publication number
- JPH01145980U JPH01145980U JP4304188U JP4304188U JPH01145980U JP H01145980 U JPH01145980 U JP H01145980U JP 4304188 U JP4304188 U JP 4304188U JP 4304188 U JP4304188 U JP 4304188U JP H01145980 U JPH01145980 U JP H01145980U
- Authority
- JP
- Japan
- Prior art keywords
- fuel
- pressure oil
- chamber
- fuel injection
- internal combustion
- 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 12
- 238000002347 injection Methods 0.000 claims description 11
- 239000007924 injection Substances 0.000 claims description 11
- 238000002485 combustion reaction Methods 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 6
Landscapes
- Fuel-Injection Apparatus (AREA)
Description
第１図は本考案の一実施例としての燃料噴射装
置及び同装置の装着される内燃機関の断面図、第
２図は同上装置の噴射弁駆動電流の特性線図、第
３図は同上装置の内蔵する電磁弁駆動マツプの特
性線図、第４図は同上装置の噴射圧特性線図、第
５図は燃料噴射装置の機関回転数―噴射圧特性線
図、第６図は従来装置の断面図である。
２０……燃焼室、２２……基部、２４……噴射
ノズル、２５……高圧送油路、２６……プランジ
ヤ、２７……プランジヤ、２９……プランジヤ駆
動系、３２……燃料供給路、３９……ニードル弁
、４２……第１電磁弁、４３……低圧油路、４５
……第２電磁弁、４６……調圧室、５２……コン
トローラ。
Fig. 1 is a sectional view of a fuel injection device as an embodiment of the present invention and an internal combustion engine to which the same device is installed, Fig. 2 is a characteristic diagram of the injection valve driving current of the same device, and Fig. 3 is a characteristic diagram of the same device. Figure 4 is a characteristic diagram of the built-in solenoid valve drive map, Figure 4 is an injection pressure characteristic diagram of the same device, Figure 5 is an engine speed-injection pressure characteristic diagram of the fuel injection device, and Figure 6 is a characteristic diagram of the conventional device. FIG. 20...Combustion chamber, 22...Base, 24...Injection nozzle, 25...High pressure oil supply path, 26...Plunger, 27...Plunger, 29...Plunger drive system, 32...Fuel supply path, 39 ... Needle valve, 42 ... First solenoid valve, 43 ... Low pressure oil path, 45
...Second solenoid valve, 46...Pressure regulation chamber, 52...Controller.
Claims (1)
燃料を供給されるプランジヤ室と、上記内燃機関
の出力軸よりの駆動力を受けて上記ポンプ室の燃
料を加圧作動するプランジヤと、上記ポンプ室か
らの高圧燃料を高圧送油路を通して供給されると
共に針弁の開時に燃料を上記内燃機関の燃焼室に
噴射する噴射ノズルと、上記高圧送油路と低圧油
路との間を開閉操作する燃料噴射用電磁弁とを有
し、上記高圧送油路には調圧電磁弁を介して調圧
室が連通可能に連結され、上記調圧電磁弁は機関
回転数が設定値を上回つた際に開作動するよう制
御手段に制御されることを特徴とする燃料噴射装
置。 a plunger chamber supported by the engine body of the internal combustion engine and supplied with fuel from a fuel supply system; a plunger that receives driving force from the output shaft of the internal combustion engine to pressurize the fuel in the pump chamber; and the pump chamber. An injection nozzle that is supplied with high-pressure fuel from the above through the high-pressure oil passage and injects the fuel into the combustion chamber of the internal combustion engine when the needle valve opens, and an opening/closing operation between the high-pressure oil passage and the low-pressure oil passage. a solenoid valve for fuel injection; a pressure regulating chamber is communicatively connected to the high-pressure oil supply path via a pressure regulating solenoid valve; 1. A fuel injection device characterized in that the fuel injection device is controlled by a control means to open when the fuel injection device opens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4304188U JPH078841Y2 (en) | 1988-03-31 | 1988-03-31 | Fuel injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4304188U JPH078841Y2 (en) | 1988-03-31 | 1988-03-31 | Fuel injector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01145980U true JPH01145980U (en) | 1989-10-06 |
| JPH078841Y2 JPH078841Y2 (en) | 1995-03-06 |
Family
ID=31269442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4304188U Expired - Lifetime JPH078841Y2 (en) | 1988-03-31 | 1988-03-31 | Fuel injector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH078841Y2 (en) |
-
1988
- 1988-03-31 JP JP4304188U patent/JPH078841Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH078841Y2 (en) | 1995-03-06 |
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