JPS5919972U - fuel injector - Google Patents
fuel injectorInfo
- Publication number
- JPS5919972U JPS5919972U JP11518482U JP11518482U JPS5919972U JP S5919972 U JPS5919972 U JP S5919972U JP 11518482 U JP11518482 U JP 11518482U JP 11518482 U JP11518482 U JP 11518482U JP S5919972 U JPS5919972 U JP S5919972U
- Authority
- JP
- Japan
- Prior art keywords
- cylinder hole
- pressure
- chamber
- oil
- fuel
- 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
Landscapes
- High-Pressure Fuel Injection Pump Control (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来の燃料噴射装置を示す概略断面図、第２〜
４図はこの考案の一実施例を示す図であり、第２図はそ
の部分拡大断面図、第３図はその高噴射率噴射時の作用
説明図、第４図ａ ” ｃはその低噴射率噴射時の作用
説明図である。
３・・・フィードポンプ（燃料ポンプ）、８・・・シリ
ンダ孔、９・・・インポート、１１・・・アウトポート
、１２・・・ハウジング、１３・・・圧縮室、１４・・
・プランジャ、４１・・・第２ハウジング、４２・・・
第２シリンダ孔、４３・・・第３シリンダ孔、４４・・
・制御ピストン、４５・・・背圧室、４６・・・調圧室
、４７・・・調圧ピストン。Figure 1 is a schematic sectional view showing a conventional fuel injection device, Figure 2-
Fig. 4 shows an embodiment of this invention, Fig. 2 is a partially enlarged sectional view, Fig. 3 is an explanatory diagram of its operation during high injection rate injection, and Fig. 4 a `` c shows its low injection rate. It is an explanatory diagram of the action during rate injection. 3... Feed pump (fuel pump), 8... Cylinder hole, 9... Import, 11... Out port, 12... Housing, 13...・Compression chamber, 14...
・Plunger, 41...Second housing, 42...
Second cylinder hole, 43...Third cylinder hole, 44...
- Control piston, 45... Back pressure chamber, 46... Pressure regulation chamber, 47... Pressure regulation piston.
Claims (1)
の供給されるインポートと噴射ノズルに燃料油を送給す
るアウトポートが形成されたノ１ウジングと、シリンダ
孔内に移動可能に収納され圧縮室を画成するプランジャ
と、を有し、プランジャがインポートから圧縮室に供給
された燃料油を圧縮する方向に移動して該燃料油の油圧
を上昇させて前記アウトポートから高圧燃料油を噴射ノ
ズルに送給する燃料噴射装置において、直列に並んだ第
２シリンダ孔と第３シリンダ孔の形成された第２ハウジ
ングを、第２シリンダ孔が前記圧縮室に連通ずるように
前記ハウジングに取付け、第２シリンダ孔側に背圧室を
他端側に調圧室を画成する制御ピストンを第３シリンダ
孔内に摺動自在に収納するとともに該制御ピストンに連
結された調圧ピストンを第２シリンダ孔内に摺動自在に
収納し、これら背圧室および調圧室の油圧を車両の運転
状態に基づいて制御することにより前記圧縮室の油圧を
制御するようにしたことを特徴とする燃料噴射装置。A cylinder hole is formed, and an inlet port for supplying fuel oil from the fuel pump and an outport for supplying fuel oil to the injection nozzle are formed. a plunger defining a compression chamber, the plunger moves in a direction to compress the fuel oil supplied from the import to the compression chamber to increase the oil pressure of the fuel oil, and inject the high-pressure fuel oil from the out port into the injection nozzle. In the fuel injection device for supplying fuel, a second housing having a second cylinder hole and a third cylinder hole arranged in series is attached to the housing so that the second cylinder hole communicates with the compression chamber, and A control piston defining a back pressure chamber on the cylinder hole side and a pressure regulating chamber on the other end side is slidably housed in the third cylinder hole, and the pressure regulating piston connected to the control piston is inserted into the second cylinder hole. A fuel injection device, characterized in that the oil pressure in the compression chamber is controlled by controlling the oil pressure in the back pressure chamber and the pressure regulating chamber based on the operating condition of the vehicle. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11518482U JPS5919972U (en) | 1982-07-28 | 1982-07-28 | fuel injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11518482U JPS5919972U (en) | 1982-07-28 | 1982-07-28 | fuel injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5919972U true JPS5919972U (en) | 1984-02-07 |
Family
ID=30265978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11518482U Pending JPS5919972U (en) | 1982-07-28 | 1982-07-28 | fuel injector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5919972U (en) |
-
1982
- 1982-07-28 JP JP11518482U patent/JPS5919972U/en active Pending
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