JPS61140105U - - Google Patents
Info
- Publication number
- JPS61140105U JPS61140105U JP2256485U JP2256485U JPS61140105U JP S61140105 U JPS61140105 U JP S61140105U JP 2256485 U JP2256485 U JP 2256485U JP 2256485 U JP2256485 U JP 2256485U JP S61140105 U JPS61140105 U JP S61140105U
- Authority
- JP
- Japan
- Prior art keywords
- piston
- valve
- fluid pressure
- rack
- leak
- 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
- 239000012530 fluid Substances 0.000 claims 5
- 238000010586 diagram Methods 0.000 description 5
Landscapes
- Valve Device For Special Equipments (AREA)
- Fluid-Driven Valves (AREA)
Description
第１図は本考案の一実施例の構成図、第２図は
同上実施例の要部構成図、第３図はピストンのリ
ーク溝部を示す図、第４図はリーク孔とリーク溝
の位置関係を示す図で、Ａは弁を閉弁保持する場
合、Ｂは弁を開閉駆動する場合、第５図は従来例
の構成図を示す。
１…過給弁、２…油圧シリンダ、９…カム、１
５…油圧通路、１９…補充通路、３０…油圧ポン
プ、３１…シリンダ部、３２…ピストン、３２Ａ
…リーク溝、３２Ｂ…ピニオン、３３…リターン
スプリング、３４…圧力室、３５…リーク孔、３
６…リーク通路、４０…ラツク、４１…電磁ソレ
ノイド。
Fig. 1 is a block diagram of an embodiment of the present invention, Fig. 2 is a block diagram of the main parts of the same embodiment, Fig. 3 is a diagram showing the leak groove of the piston, and Fig. 4 is the position of the leak hole and the leak groove. In the diagrams showing the relationships, A shows the case where the valve is held closed, B shows the case where the valve is driven to open and close, and FIG. 5 shows a configuration diagram of a conventional example. 1...Supercharging valve, 2...Hydraulic cylinder, 9...Cam, 1
5... Hydraulic passage, 19... Replenishment passage, 30... Hydraulic pump, 31... Cylinder part, 32... Piston, 32A
...Leak groove, 32B...Pinion, 33...Return spring, 34...Pressure chamber, 35...Leak hole, 3
6...Leak passage, 40...Rack, 41...Electromagnetic solenoid.
Claims (1)
流体圧を発生する液体圧ポンプを有し、該ポンプ
からの流体圧により、弁駆動用流体圧シリンダを
駆動して弁を開閉駆動するようにした弁駆動装置
において、前記ピストンが回転及び往復動自由に
設けられ当該ピストンと共に作動流体が充満する
圧力室を形成する前記流体圧ポンプのシリンダ部
に、低圧源に連通するリーク孔を開口すると共に
、前記ピストンの圧力室側外周部にリーク溝を設
ける一方、ピストンのシリンダ部外方に突出する
突出部外周にピニオンを形成し、該ピニオンに噛
合うラツクと、該ラツクを前記リーク孔とリーク
溝との位置を一致させるべく軸方向に移動可能な
ラツク駆動手段とを設けたことを特徴とする弁駆
動装置。 A valve that has a hydraulic pump whose piston reciprocates according to a cam profile to generate fluid pressure, and the fluid pressure from the pump drives a valve driving fluid pressure cylinder to open and close the valve. In the drive device, a leak hole communicating with a low pressure source is opened in a cylinder portion of the fluid pressure pump in which the piston is provided to freely rotate and reciprocate, and together with the piston forms a pressure chamber filled with working fluid; A leak groove is provided on the outer periphery of the piston on the pressure chamber side, and a pinion is formed on the outer periphery of the protruding portion of the piston that protrudes outward from the cylinder portion, and a rack that meshes with the pinion is provided, and the rack is connected to the leak hole and the leak groove. and a rack drive means movable in the axial direction to match the positions of the valve drive device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2256485U JPS61140105U (en) | 1985-02-21 | 1985-02-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2256485U JPS61140105U (en) | 1985-02-21 | 1985-02-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61140105U true JPS61140105U (en) | 1986-08-30 |
Family
ID=30514976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2256485U Pending JPS61140105U (en) | 1985-02-21 | 1985-02-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61140105U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6362977A (en) * | 1986-09-01 | 1988-03-19 | Nippon Soken Inc | Hydraulic pressure control device |
| JPS6362978A (en) * | 1986-09-02 | 1988-03-19 | Nippon Soken Inc | Hydraulic pressure control device |
-
1985
- 1985-02-21 JP JP2256485U patent/JPS61140105U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6362977A (en) * | 1986-09-01 | 1988-03-19 | Nippon Soken Inc | Hydraulic pressure control device |
| JPS6362978A (en) * | 1986-09-02 | 1988-03-19 | Nippon Soken Inc | Hydraulic pressure control device |
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