JPS63177305U - - Google Patents
Info
- Publication number
- JPS63177305U JPS63177305U JP6830087U JP6830087U JPS63177305U JP S63177305 U JPS63177305 U JP S63177305U JP 6830087 U JP6830087 U JP 6830087U JP 6830087 U JP6830087 U JP 6830087U JP S63177305 U JPS63177305 U JP S63177305U
- Authority
- JP
- Japan
- Prior art keywords
- control
- spool
- piston
- flow port
- port
- 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
- 238000011144 upstream manufacturing Methods 0.000 claims 1
Landscapes
- Servomotors (AREA)
Description
図面第１〜３図はこの考案の実施例を示す断面
図、第４，５図は従来の流量制御弁の断面図であ
る。
１……弁本体、２……ポンプポート、３……制
御流ポート、４……余剰流ポート、２２……スプ
ール、２４……制御オリフイス、２６……ピスト
ン、２８……制御棒、２８ａ……先細り部。
Figures 1 to 3 are sectional views showing an embodiment of this invention, and Figures 4 and 5 are sectional views of a conventional flow control valve. DESCRIPTION OF SYMBOLS 1... Valve body, 2... Pump port, 3... Control flow port, 4... Excess flow port, 22... Spool, 24... Control orifice, 26... Piston, 28... Control rod, 28a... ...Tapered part.
Claims (1)
剰流ポートとを形成するとともに、この弁本体に
スプールを内装し、上記ポンプポートと制御流ポ
ートとをスプールに形成した制御オリフイスを介
して連通させ、かつ、上記制御オリフイスの上流
側の圧力に応じて、当該スプールの移動量を制御
するとともに、このスプールの移動量に応じて、
ポンプポートと余剰流ポートとのラツプ通を制御
する構成にした流量制御弁において、上記スプー
ルにピストンを内装するとともに、このピストン
に設けた制御棒の先端に先細り部を形成し、この
先細り部を、上記制御オリフイスに対して出入自
在にし、このピストンの一端にスプリングを作用
させ、他端に制御流ポート側の圧力を導き、制御
流ポート側の圧力とスプリングのばね力とがバラ
ンスする位置で制御オリフイスの実質的な開口面
積を制御する構成にした流量制御弁。 A pump port, a control flow port, and a surplus flow port are formed in the valve body, and a spool is installed inside the valve body, and the pump port and the control flow port are communicated with each other via a control orifice formed in the spool. , and controlling the amount of movement of the spool in accordance with the pressure on the upstream side of the control orifice, and depending on the amount of movement of the spool,
In a flow control valve configured to control lap communication between a pump port and a surplus flow port, a piston is installed inside the spool, and a tapered portion is formed at the tip of a control rod provided on the piston. , the piston can be freely moved in and out of the control orifice, a spring is applied to one end of the piston, and the pressure on the control flow port side is guided to the other end, so that the piston is at a position where the pressure on the control flow port side and the spring force of the spring are balanced. A flow control valve configured to control the substantial opening area of a control orifice.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6830087U JPS63177305U (en) | 1987-05-07 | 1987-05-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6830087U JPS63177305U (en) | 1987-05-07 | 1987-05-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63177305U true JPS63177305U (en) | 1988-11-17 |
Family
ID=30907989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6830087U Pending JPS63177305U (en) | 1987-05-07 | 1987-05-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63177305U (en) |
-
1987
- 1987-05-07 JP JP6830087U patent/JPS63177305U/ja active Pending