JPH01104481U - - Google Patents
Info
- Publication number
- JPH01104481U JPH01104481U JP20084887U JP20084887U JPH01104481U JP H01104481 U JPH01104481 U JP H01104481U JP 20084887 U JP20084887 U JP 20084887U JP 20084887 U JP20084887 U JP 20084887U JP H01104481 U JPH01104481 U JP H01104481U
- Authority
- JP
- Japan
- Prior art keywords
- spool
- pressure
- flow control
- variable
- pressure compensation
- 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.)
- Granted
Links
- 230000005284 excitation Effects 0.000 claims 1
Landscapes
- Magnetically Actuated Valves (AREA)
- Flow Control (AREA)
Description
図面第１図はこの考案の実施例を示す断面図、
第２図は従来の流量制御弁の断面図である。
３１…ボデイ、３５…圧力補償スプール、４５
…供給ポート、４８…アクチユエータポート、４
９…流量制御スプール、ａ…第１可変絞り、ｂ…
第２可変絞り、５０…比例ソレノイド、５３…プ
ツシユロツド。
Figure 1 is a sectional view showing an embodiment of this invention;
FIG. 2 is a sectional view of a conventional flow control valve. 31...Body, 35...Pressure compensation spool, 45
... Supply port, 48 ... Actuator port, 4
9...Flow rate control spool, a...First variable throttle, b...
Second variable aperture, 50...Proportional solenoid, 53...Push rod.
Claims (1)
とを設け、この圧力補償スプールの一端には供給
圧を作用させ、他端には負荷圧を作用させ、これ
ら両圧力差に応じて圧力補償スプールが移動して
第１可変絞りの開口面積を制御する一方、上記流
量制御スプールは、その一端に比例ソレノイドの
プツシユロツドを当接させ、この比例ソレノイド
の励磁電流に応じて、当該流量制御スプールが移
動し、上記第１可変絞りよりも下流側に位置する
第２可変絞りの開口面積を制御するとともに、供
給ポートとアクチユエータポートとを、これら第
１，２可変絞りを介して連通させてなる流量制御
弁において、上記圧力補償スプールと流量制御ス
プールとを直列に配置してなる流量制御弁。 A pressure compensation spool and a flow rate control spool are provided in the body, supply pressure is applied to one end of the pressure compensation spool, load pressure is applied to the other end, and the pressure compensation spool moves according to the difference between these two pressures. While controlling the opening area of the first variable diaphragm, the flow control spool is brought into contact with the push rod of a proportional solenoid at one end, and the flow control spool moves in accordance with the excitation current of the proportional solenoid. A flow rate control valve that controls the opening area of a second variable throttle located downstream of the first variable throttle, and communicates the supply port with the actuator port via the first and second variable throttles. A flow control valve comprising the pressure compensating spool and the flow control spool arranged in series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987200848U JPH085433Y2 (en) | 1987-12-30 | 1987-12-30 | Flow control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987200848U JPH085433Y2 (en) | 1987-12-30 | 1987-12-30 | Flow control valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01104481U true JPH01104481U (en) | 1989-07-14 |
| JPH085433Y2 JPH085433Y2 (en) | 1996-02-14 |
Family
ID=31491237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987200848U Expired - Lifetime JPH085433Y2 (en) | 1987-12-30 | 1987-12-30 | Flow control valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH085433Y2 (en) |
-
1987
- 1987-12-30 JP JP1987200848U patent/JPH085433Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH085433Y2 (en) | 1996-02-14 |