JPH0228563U - - Google Patents
Info
- Publication number
- JPH0228563U JPH0228563U JP10610888U JP10610888U JPH0228563U JP H0228563 U JPH0228563 U JP H0228563U JP 10610888 U JP10610888 U JP 10610888U JP 10610888 U JP10610888 U JP 10610888U JP H0228563 U JPH0228563 U JP H0228563U
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- fuel
- hydraulic pressure
- introduction port
- boosting
- 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 11
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 238000002485 combustion reaction Methods 0.000 claims 1
- 239000012530 fluid Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- High-Pressure Fuel Injection Pump Control (AREA)
- Fuel-Injection Apparatus (AREA)
Description
第１図はこの考案に係る燃料噴射装置の一実施
例を示す構成説明図、第２図はこの実施例の噴射
圧特性を示す特性図、第３図は従来における燃料
噴射装置の一構成例を示す構成説明図である。
１……フイードポンプ、６……電磁切換弁、２
５……燃料噴射ノズル、３１……燃料増圧器、３
２……増圧ピストン、３４……大径ピストン部、
３６……小径プランジヤ部、３７……増圧サーボ
室、３８……燃料圧縮室、４２……液圧導入ボー
ト、４５……開閉弁、４６……圧力制御弁。
Fig. 1 is a configuration explanatory diagram showing an embodiment of the fuel injection device according to this invention, Fig. 2 is a characteristic diagram showing the injection pressure characteristics of this embodiment, and Fig. 3 is an example of the configuration of a conventional fuel injection device. FIG. 1...Feed pump, 6...Solenoid switching valve, 2
5...Fuel injection nozzle, 31...Fuel pressure booster, 3
2... Pressure boosting piston, 34... Large diameter piston section,
36... Small diameter plunger portion, 37... Pressure boosting servo chamber, 38... Fuel compression chamber, 42... Hydraulic pressure introduction boat, 45... Opening/closing valve, 46... Pressure control valve.
Claims (1)
連接されてなる増圧ピストンによつて増圧サーボ
室と燃料圧縮室とが画成された燃料増圧器と、上
記増圧サーボ室への液圧の供給を制御する切換弁
と、上記燃料圧縮室から高圧燃料が供給される燃
料噴射ノズルとを備えてなる内燃機関の燃料噴射
装置において、上記増圧サーボ室から作動液体の
一部を圧力制御弁を介して排出する初期圧力制御
用通路と、上記増圧ピストンが所定ストローク移
動したときに開かれる液圧導入ポートと、上記初
期圧力制御用通路に介装され、かつ上記液圧導入
ポートから導入された液圧によつて該通路を遮断
する開閉弁とを備えたことを特徴とする内燃機関
の燃料噴射装置。 A fuel pressure booster in which a pressure boosting servo chamber and a fuel compression chamber are defined by a pressure boosting piston formed by integrally connecting a large diameter piston part and a small diameter plunger part, and a hydraulic pressure booster to the pressure boosting servo chamber. and a fuel injection nozzle to which high-pressure fuel is supplied from the fuel compression chamber, the pressure control of part of the working fluid from the pressure boosting servo chamber an initial pressure control passage that discharges through a valve, a hydraulic pressure introduction port that opens when the pressure boosting piston moves a predetermined stroke, and a hydraulic pressure introduction port that is interposed in the initial pressure control passage and that is connected to the hydraulic pressure introduction port A fuel injection device for an internal combustion engine, comprising an on-off valve that shuts off the passage by introduced hydraulic pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10610888U JPH0643489Y2 (en) | 1988-08-11 | 1988-08-11 | Fuel injection device for internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10610888U JPH0643489Y2 (en) | 1988-08-11 | 1988-08-11 | Fuel injection device for internal combustion engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0228563U true JPH0228563U (en) | 1990-02-23 |
| JPH0643489Y2 JPH0643489Y2 (en) | 1994-11-14 |
Family
ID=31339324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10610888U Expired - Lifetime JPH0643489Y2 (en) | 1988-08-11 | 1988-08-11 | Fuel injection device for internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0643489Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013147078A1 (en) * | 2012-03-30 | 2013-10-03 | 三菱重工業株式会社 | Hydraulic-drive fuel injection device and internal combustion engine |
-
1988
- 1988-08-11 JP JP10610888U patent/JPH0643489Y2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013147078A1 (en) * | 2012-03-30 | 2013-10-03 | 三菱重工業株式会社 | Hydraulic-drive fuel injection device and internal combustion engine |
| JP2013209948A (en) * | 2012-03-30 | 2013-10-10 | Mitsubishi Heavy Ind Ltd | Hydraulically driven fuel injection device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0643489Y2 (en) | 1994-11-14 |
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