JPH01127970U - - Google Patents
Info
- Publication number
- JPH01127970U JPH01127970U JP2430588U JP2430588U JPH01127970U JP H01127970 U JPH01127970 U JP H01127970U JP 2430588 U JP2430588 U JP 2430588U JP 2430588 U JP2430588 U JP 2430588U JP H01127970 U JPH01127970 U JP H01127970U
- Authority
- JP
- Japan
- Prior art keywords
- hydraulic
- hydraulic actuator
- main oil
- pressure
- oil passage
- 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 4
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 239000003921 oil Substances 0.000 claims 4
- 239000010720 hydraulic oil Substances 0.000 claims 2
- 239000000295 fuel oil Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Description
第１図は本考案の一実施例を示す油圧式燃料噴
射装置の概略図、第２図は第１図のマイクロコン
ピユータにより補助電磁弁を制御する制御フロー
を示す図、第３図は制御手段の他の実施例を示す
回路ブロツク図である。
３……エンジン、１０……油圧アクチユエータ
、２０……インジエクタ、５０……油圧ポンプ、
５３……主油路、５６……電磁弁、５８……アキ
ユムレータ、５９……補助電磁弁、６０……制御
手段（マイクロコンピユータ、７０……制御手段
（制御回路）。
Fig. 1 is a schematic diagram of a hydraulic fuel injection system showing an embodiment of the present invention, Fig. 2 is a diagram showing a control flow for controlling an auxiliary solenoid valve by the microcomputer shown in Fig. 1, and Fig. 3 is a control means. FIG. 3 is a circuit block diagram showing another embodiment of the invention. 3...Engine, 10...Hydraulic actuator, 20...Injector, 50...Hydraulic pump,
53...Main oil path, 56...Solenoid valve, 58...Accumulator, 59...Auxiliary solenoid valve, 60...Control means (microcomputer), 70...Control means (control circuit).
Claims (1)
圧アクチユエータと、油圧アクチユエータからの
高圧燃料を噴射するインジエクタと、油圧アクチ
ユエータに主油路を介して作動油圧力を供給する
モータ駆動式油圧ポンプと、上記主油路に設けら
れ油圧ポンプと油圧アクチユエータとの間を連通
、遮断して油圧アクチユエータの駆動制御を行な
う電磁弁と、主油路に連なるアキユムレータとを
備えた油圧式燃料噴射装置において、更に上記ア
キユムレータと主油路との間に介在された補助電
磁弁と、エンジン始動時に補助電磁弁を閉じるよ
うに制御する制御手段とを備えたことを特徴とす
る油圧式燃料噴射装置。 A hydraulic actuator that pressurizes fuel oil to high pressure in response to hydraulic oil pressure, an injector that injects high-pressure fuel from the hydraulic actuator, and a motor-driven hydraulic pump that supplies hydraulic oil pressure to the hydraulic actuator via a main oil path. , a hydraulic fuel injection device comprising an electromagnetic valve provided in the main oil passage and controlling the drive of the hydraulic actuator by communicating and disconnecting between the hydraulic pump and the hydraulic actuator, and an accumulator connected to the main oil passage, A hydraulic fuel injection device further comprising: an auxiliary solenoid valve interposed between the accumulator and the main oil passage; and a control means for controlling the auxiliary solenoid valve to close when starting the engine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2430588U JPH01127970U (en) | 1988-02-25 | 1988-02-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2430588U JPH01127970U (en) | 1988-02-25 | 1988-02-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01127970U true JPH01127970U (en) | 1989-08-31 |
Family
ID=31244046
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2430588U Pending JPH01127970U (en) | 1988-02-25 | 1988-02-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01127970U (en) |
-
1988
- 1988-02-25 JP JP2430588U patent/JPH01127970U/ja active Pending
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