JPS5914964U - Unit injector injection control device - Google Patents
Unit injector injection control deviceInfo
- Publication number
- JPS5914964U JPS5914964U JP11057182U JP11057182U JPS5914964U JP S5914964 U JPS5914964 U JP S5914964U JP 11057182 U JP11057182 U JP 11057182U JP 11057182 U JP11057182 U JP 11057182U JP S5914964 U JPS5914964 U JP S5914964U
- Authority
- JP
- Japan
- Prior art keywords
- chamber
- unit injector
- piston
- control device
- injection control
- 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
- Fuel-Injection Apparatus (AREA)
- High-Pressure Fuel Injection Pump Control (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図は従来装置を示す断面図、第２図は本考案の実施
例を示す断面図である。
１・・・エンジンカム、２・・・タペット、３・・・ブ
ツシュロッド、５・・・油圧タペット、９・・・ボディ
、１０・・・切換弁、１１・・・第１のシリンダ、１２
・・・第１のピストン、１７・・・第１のチャンバ、１
８．１８′・・・第１の通路、１９・・・チェックボー
ル弁、２２・・・第２のシリンダ、２３・・・第２のピ
ストン、２４・・・第２のチャンバ、２５． ２５’・
・・第２の通路、２Ｂ・・・スプール、２９〜３３・・
・環状溝、３４・・・電磁ソレノイド。FIG. 1 is a sectional view showing a conventional device, and FIG. 2 is a sectional view showing an embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Engine cam, 2... Tappet, 3... Bush rod, 5... Hydraulic tappet, 9... Body, 10... Switching valve, 11... First cylinder, 12
...first piston, 17...first chamber, 1
8.18'...First passage, 19...Check ball valve, 22...Second cylinder, 23...Second piston, 24...Second chamber, 25. 25'・
...Second passage, 2B...Spool, 29-33...
・Annular groove, 34...electromagnetic solenoid.
Claims (1)
動する油圧タペットと、油圧タペットの動きをブツシュ
ロッド及びロッカアームを介してユニットインジェクタ
のフォロアに伝達するようにしたユニットインジェクタ
において、油圧タペットにブツシュロッドと当接する第
１のピストンを第１のチャンバに摺動自由に設け、第２
のチャンバに第２のピストンを摺動ｉ由に設け、上記両
チャンバの圧油を選択的に切換える切換弁を備え、第１
のピストンは圧油に応動してブツシュロッドを押し出し
、第２のピストンは圧油に応動して第１のチャンバの入
口部に設けたチェックバルブを開放して第１のチャンバ
の圧力を解除するように構成されていることを特徴とす
るユニットインジェクタの噴射制御装置。A unit injector includes a cam that rotates in synchronization with engine rotation, a hydraulic tappet that responds to the cam, and a bushing rod and a bushing rod on the hydraulic tappet, and a unit injector that transmits the movement of the hydraulic tappet to the follower of the unit injector via the bushing rod and rocker arm. A first abutting piston is slidably provided in the first chamber, and a second piston is provided in the first chamber.
A second piston is slidably provided in the chamber of the chamber, and a switching valve is provided for selectively switching the pressure oil in both of the chambers.
The second piston responds to the pressure oil to push out the bushing rod, and the second piston responds to the pressure oil to open a check valve provided at the inlet of the first chamber to release the pressure in the first chamber. An injection control device for a unit injector, comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11057182U JPS5914964U (en) | 1982-07-21 | 1982-07-21 | Unit injector injection control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11057182U JPS5914964U (en) | 1982-07-21 | 1982-07-21 | Unit injector injection control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5914964U true JPS5914964U (en) | 1984-01-30 |
Family
ID=30257091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11057182U Pending JPS5914964U (en) | 1982-07-21 | 1982-07-21 | Unit injector injection control device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5914964U (en) |
-
1982
- 1982-07-21 JP JP11057182U patent/JPS5914964U/en active Pending
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