JPS5867166U - Pressure compensated directional flow control valve - Google Patents
Pressure compensated directional flow control valveInfo
- Publication number
- JPS5867166U JPS5867166U JP16236881U JP16236881U JPS5867166U JP S5867166 U JPS5867166 U JP S5867166U JP 16236881 U JP16236881 U JP 16236881U JP 16236881 U JP16236881 U JP 16236881U JP S5867166 U JPS5867166 U JP S5867166U
- Authority
- JP
- Japan
- Prior art keywords
- pilot
- spool
- main switching
- diameter hole
- 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.)
- Granted
Links
Landscapes
- Multiple-Way Valves (AREA)
- Fluid-Pressure Circuits (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図と第２図は、この考案による圧力補償型方向流量
制御弁の縦断面図であり、第１図は中立位置、第２図は
変位したときを示す。
図中、１・・・弁本体、１０・・・主切換スプール、１
１・・・小径孔、１２・・・大径孔、１３．１４・・・
パイロットスプール、１５，１６．１７・・・ランド溝
、１８・・・スプリング、１９・・・エンドプラグ、２
０・・・コントロールエツジ、２１．２２…パイロツト
室、２３・・・オリフィス、２４・・・パイロットＬ２
５゜２６．２９・・・通路、２７．２８・・・パイロッ
ト溝。1 and 2 are longitudinal sectional views of the pressure-compensated directional flow control valve according to this invention, with FIG. 1 showing the valve in a neutral position and FIG. 2 showing it in a displaced position. In the figure, 1... Valve body, 10... Main switching spool, 1
1...Small diameter hole, 12...Large diameter hole, 13.14...
Pilot spool, 15, 16. 17... Land groove, 18... Spring, 19... End plug, 2
0...Control edge, 21.22...Pilot chamber, 23...Orifice, 24...Pilot L2
5゜26.29...Passage, 27.28...Pilot groove.
Claims (1)
切換と流量調整を行なう方向流量制御弁において、主切
換スプールの中央部の軸方向に設けた小径孔と、小径孔
の両端に位置してパイロットスプールを摺動可能に嵌入
すると大径孔と、頭部外周端にコントロールエツジを突
設し頭部にオリフィスを設けたパイロットスプールと、
パイロットスプールの頭部を小径孔側の大径孔端に押圧
するためのスプリングと、主切換スプール中央部に設け
て小径孔と連通ずるランド溝と、パイロットスプール位
置の主切換スプールに設けるランド溝と、Ａポート及び
Ｂポートの各々に連通ずる通路に接続され弁孔に臨むパ
イロット溝と、主切換スプールに設は主切換スプールの
変位時にパイロット溝とパイロット室内を連通させるパ
イロット孔とからなり、主切換スプールの変位時にＰポ
ートと負荷側からの戻り油路とならない側のＴポートへ
余剰圧流体を戻してＰポートとＡ又はＢポートとの圧力
差を一定に保持する圧力補償型方向流量制御弁。In a directional flow control valve in which the main switching spool slides through a valve hole in the valve body to switch the direction of fluid and adjust the flow rate, there is a small diameter hole provided in the axial direction in the center of the main switching spool, and a small diameter hole at both ends of the small diameter hole. When the pilot spool is slidably inserted into the pilot spool, a pilot spool with a large diameter hole, a control edge protruding from the outer peripheral end of the head, and an orifice on the head,
A spring for pressing the head of the pilot spool to the end of the large diameter hole on the small diameter hole side, a land groove provided in the center of the main switching spool and communicating with the small diameter hole, and a land groove provided in the main switching spool at the pilot spool position. , a pilot groove connected to a passage communicating with each of the A port and the B port and facing the valve hole, and a pilot hole installed in the main switching spool that communicates the pilot groove with the pilot chamber when the main switching spool is displaced, Pressure-compensated directional flow rate that returns excess pressure fluid to the P port and the T port on the side that does not become the return oil path from the load side when the main switching spool is displaced to maintain a constant pressure difference between the P port and the A or B port. control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16236881U JPS5867166U (en) | 1981-10-29 | 1981-10-29 | Pressure compensated directional flow control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16236881U JPS5867166U (en) | 1981-10-29 | 1981-10-29 | Pressure compensated directional flow control valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5867166U true JPS5867166U (en) | 1983-05-07 |
| JPS633442Y2 JPS633442Y2 (en) | 1988-01-28 |
Family
ID=29954684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16236881U Granted JPS5867166U (en) | 1981-10-29 | 1981-10-29 | Pressure compensated directional flow control valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5867166U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5388229A (en) * | 1977-01-13 | 1978-08-03 | Masao Yoshino | Changable hand operating changing over valve with pressure compensatable means |
-
1981
- 1981-10-29 JP JP16236881U patent/JPS5867166U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5388229A (en) * | 1977-01-13 | 1978-08-03 | Masao Yoshino | Changable hand operating changing over valve with pressure compensatable means |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS633442Y2 (en) | 1988-01-28 |
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