JPS5814568U - Pilot operated switching valve - Google Patents
Pilot operated switching valveInfo
- Publication number
- JPS5814568U JPS5814568U JP10803981U JP10803981U JPS5814568U JP S5814568 U JPS5814568 U JP S5814568U JP 10803981 U JP10803981 U JP 10803981U JP 10803981 U JP10803981 U JP 10803981U JP S5814568 U JPS5814568 U JP S5814568U
- Authority
- JP
- Japan
- Prior art keywords
- pilot
- spool
- valve body
- chamber
- fluid
- 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
- Fluid-Driven Valves (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図は本考案の一実施例を示すパイロット操作切換弁
の縦断面図、第２図はパイロット弁部の要部拡大断面図
、第３図は第２図の線Ｉ［Ｉ−Ｈに沿った断面図、第４
図・第５図は他実施例図である。
１・・・・・・主弁本体、４・・・・・・主スプール、
１１・・・・・・パイロット弁本体、１５・・・・・・
環状溝、１９・・・・・・パイロットスプール、２４・
・・・・・ランド部、２５゜２９．３０・・・・・・切
欠き。Fig. 1 is a vertical cross-sectional view of a pilot-operated switching valve showing an embodiment of the present invention, Fig. 2 is an enlarged sectional view of the main part of the pilot valve section, and Fig. 3 is a cross-sectional view along the line I [I-H in Fig. 2]. Sectional view along, 4th
Figures 5 and 5 are diagrams of other embodiments. 1... Main valve body, 4... Main spool,
11...Pilot valve body, 15...
Annular groove, 19...Pilot spool, 24.
...Land part, 25°29.30...Notch.
Claims (1)
路間の切換えをする主スプールを摺動自在に嵌挿し、主
弁本体に取付けたパイロット弁本体に形成の嵌合に丙へ
パイロット室のパイロシト流体を流入出するパイロット
スプールを摺動自在に嵌挿して成り、電磁気装置と復帰
ばねによりパイロットスプールを軸方向の二位置に移動
することで、パイロット室を圧力流体を供給する供給流
路と低圧部へ接続する排出流路とに切換連通ずるパイロ
ット操作切換弁において、パイロット弁本体のパイロッ
トスプールを嵌挿する嵌合孔に内周面を窪ませてパイロ
ット室へ連通ずる環状溝を形成し、パイロットスプール
のランド部のランド部の少なくとも一方の端部には周方
向に間隔を有して窪ませ圧力平衡する複数の切欠きを形
成し、パイロット室のパイロット流体を排出する際複数
の ・切欠きが環状溝に開口し、パイロット流体を複
数の切欠きのみから排出制御するようにしてパイロット
スプール開口量を増大するようにしたパイロット操作切
換弁。The main spool, which forms a pilot chamber at the end and switches between flow paths, is slidably inserted into the fitting hole of the main valve body, and the pilot valve body attached to the main valve body is fitted with the main spool. A pilot spool that allows pilot fluid to flow in and out of the pilot chamber is slidably inserted into C. By moving the pilot spool to two positions in the axial direction using an electromagnetic device and a return spring, pressure fluid is supplied to the pilot chamber. In a pilot-operated switching valve that communicates between a supply channel connected to a low-pressure section and a discharge channel connected to a low-pressure section, the inner circumferential surface of the pilot valve body is recessed into a fitting hole into which a pilot spool is inserted, and the pilot chamber is communicated with the pilot chamber. An annular groove is formed, and at least one end of the land portion of the pilot spool is formed with a plurality of recessed notches at intervals in the circumferential direction to balance the pressure, and the pilot fluid in the pilot chamber is discharged. A pilot-operated switching valve in which a plurality of notches open into an annular groove and the pilot fluid is controlled to be discharged only from the plurality of notches to increase the opening amount of the pilot spool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10803981U JPS5814568U (en) | 1981-07-21 | 1981-07-21 | Pilot operated switching valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10803981U JPS5814568U (en) | 1981-07-21 | 1981-07-21 | Pilot operated switching valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5814568U true JPS5814568U (en) | 1983-01-29 |
| JPS62468Y2 JPS62468Y2 (en) | 1987-01-08 |
Family
ID=29902461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10803981U Granted JPS5814568U (en) | 1981-07-21 | 1981-07-21 | Pilot operated switching valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5814568U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5221450U (en) * | 1975-08-04 | 1977-02-15 |
-
1981
- 1981-07-21 JP JP10803981U patent/JPS5814568U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5221450U (en) * | 1975-08-04 | 1977-02-15 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62468Y2 (en) | 1987-01-08 |
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