JPH02132183U - - Google Patents
Info
- Publication number
- JPH02132183U JPH02132183U JP4131089U JP4131089U JPH02132183U JP H02132183 U JPH02132183 U JP H02132183U JP 4131089 U JP4131089 U JP 4131089U JP 4131089 U JP4131089 U JP 4131089U JP H02132183 U JPH02132183 U JP H02132183U
- Authority
- JP
- Japan
- Prior art keywords
- hydraulic pressure
- circuit
- output
- piston
- back chamber
- 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
- Magnetically Actuated Valves (AREA)
Description
第１図は本考案一実施例の圧力制御弁を示す断
面図、第２図は実施例圧力制御弁の電流−出力液
圧特性を示すグラフである。
１ａ……第１背室、１ｂ……第２背室、２……
液圧供給回路、３……ドレーン回路、４……バル
ブスプール、５６ａ……スプリング着座面（スト
ツパ手段）、５６ｂ……スプリング着座面（スト
ツパ手段）、６３ａ……第１ピストン摺動孔孔、
６３ｂ……第２ピストン摺動孔孔、６４ａ……第
１パイロツトピストン、６４ｂ……第２パイロツ
トピストン、７ａ……ストツパ部材（ストツパ手
段）、７ｂ……ストツパ部材（ストツパ手段）、
１００……オリフイス、１０１ａ……連通路、１
０１ｂ……連通路、Ｐ１……出力液圧、Ｐ２……
出力液圧。
FIG. 1 is a sectional view showing a pressure control valve according to an embodiment of the present invention, and FIG. 2 is a graph showing current-output hydraulic pressure characteristics of the pressure control valve according to the embodiment. 1a...first back chamber, 1b...second back chamber, 2...
Hydraulic pressure supply circuit, 3... Drain circuit, 4... Valve spool, 56a... Spring seating surface (stopper means), 56b... Spring seating surface (stopper means), 63a... First piston sliding hole,
63b...Second piston sliding hole, 64a...First pilot piston, 64b...Second pilot piston, 7a...Stopper member (stopper means), 7b...Stopper member (stopper means),
100... Orifice, 101a... Communication path, 1
01b...Communication path, P1 ...Output hydraulic pressure, P2 ...
Output hydraulic pressure.
Claims (1)
の間の絞り量を制御して出力回路の出力液圧を制
御可能なバルブスプールと、 該バルブスプールに穿設され、一端側に出力液
圧のフイードバツク液圧が導かれると共に、他端
側がバルブスプールの背室に開口されたピストン
摺動孔と、 該ピストン摺動孔内に摺動自在に挿入されたパ
イロツトピストンと、 該パイロツトピストンのフイードバツク液圧受
圧による摺動を規制するストツパ手段と、 前記ドレーン回路の途中に設けられたオリフイ
スと、 前記オリフイスよりも下流位置のドレーン回路
と前記背室とを連通する連通路と、 を備えていることを特徴とする圧力制御弁。[Claims for Utility Model Registration] A valve spool capable of controlling the output hydraulic pressure of the output circuit by controlling the amount of restriction between a hydraulic pressure supply circuit, an output circuit, and a drain circuit; , a piston sliding hole having one end to which feedback hydraulic pressure of output hydraulic pressure is guided and the other end opening to the back chamber of the valve spool, and a pilot piston slidably inserted into the piston sliding hole. a stopper means for restricting the sliding movement of the pilot piston due to feedback hydraulic pressure; an orifice provided in the middle of the drain circuit; and a communication device that communicates the drain circuit downstream of the orifice with the back chamber. A pressure control valve comprising: a passage;
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4131089U JPH02132183U (en) | 1989-04-08 | 1989-04-08 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4131089U JPH02132183U (en) | 1989-04-08 | 1989-04-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02132183U true JPH02132183U (en) | 1990-11-02 |
Family
ID=31551866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4131089U Pending JPH02132183U (en) | 1989-04-08 | 1989-04-08 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02132183U (en) |
-
1989
- 1989-04-08 JP JP4131089U patent/JPH02132183U/ja active Pending
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