JPH0480904U - - Google Patents
Info
- Publication number
- JPH0480904U JPH0480904U JP12379590U JP12379590U JPH0480904U JP H0480904 U JPH0480904 U JP H0480904U JP 12379590 U JP12379590 U JP 12379590U JP 12379590 U JP12379590 U JP 12379590U JP H0480904 U JPH0480904 U JP H0480904U
- Authority
- JP
- Japan
- Prior art keywords
- hydraulic pressure
- back chamber
- output
- valve spool
- circuit
- 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
- 230000001276 controlling effect Effects 0.000 claims 1
- 230000001105 regulatory effect Effects 0.000 claims 1
Landscapes
- Servomotors (AREA)
- 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、５ａ……第１ソレノイド（押圧手段
）、５ｂ……第２ソレノイド（押圧手段）、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）、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反力ピストン、６４ｂ……第
２反力ピストン、１００ａ……絞り、１００ｂ…
…絞り、１０１ａ……ドレーン側連通路、１０１
ｂ……ドレーン側連通路、１１１……背室連通路
、Ｐ１……出力液圧、Ｐ２……出力液圧、Ｓ１…
…第１出力回路、Ｓ２……第２出力回路。
FIG. 1 is a sectional view showing a pressure control valve according to an embodiment of the present invention. 1a...first back chamber, 1b...second back chamber, 2...
Hydraulic pressure supply circuit, 3... Drain circuit, 4... Valve spool, 5a... First solenoid (pressing means), 5b... Second solenoid (pressing means), 7a
...stopper member (stopper means), 7b...stopper member (stopper means), 56a...spring seating surface (stopper means), 56b...spring seating surface (stopper means), 63a...first piston sliding hole Hole, 63b...Second piston sliding hole, 64a...First reaction piston, 64b...Second reaction piston, 100a...Aperture, 100b...
...Aperture, 101a...Drain side communication path, 101
b...Drain side communication passage, 111...Back chamber communication passage, P1 ...Output hydraulic pressure, P2 ...Output hydraulic pressure, S1...
...first output circuit, S2...second output circuit.
Claims (1)
、出力回路及びドレーン回路との間の絞り量を制
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、 該バルブスプールの両端に形成された背室、及
び、両背室を連通する背室連通路と、 前記バルブスプールを出力液圧増圧方向に摺動
させる押圧手段と、 前記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
側が背室に開口したピストン摺動孔と、 該ピストン摺動孔内に、フイードバツク液圧を
受圧して摺動可能に挿入された反力ピストンと、 バルブボデイ側で反力ピストンの摺動を規制す
るストツパ手段と、 前記背室とドレーン回路との間を絞りを介して
連通するドレーン側連通路と、 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 that slides against the valve body and can control the output hydraulic pressure of the output circuit by controlling the amount of restriction between the hydraulic pressure supply circuit, the output circuit, and the drain circuit. , a back chamber formed at both ends of the valve spool, a back chamber communication passage communicating the both back chambers, a pressing means for sliding the valve spool in a direction of increasing the output hydraulic pressure, and a hole formed in the valve spool. A piston sliding hole is provided, one end of which is guided by the feedback hydraulic pressure of the output hydraulic pressure, and the other end of which is open to the back chamber; The valve body includes an inserted reaction piston, a stopper means for regulating sliding of the reaction piston on the valve body side, and a drain side communication path that communicates between the back chamber and the drain circuit via a restriction. A pressure control valve characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12379590U JPH0480904U (en) | 1990-11-26 | 1990-11-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12379590U JPH0480904U (en) | 1990-11-26 | 1990-11-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0480904U true JPH0480904U (en) | 1992-07-14 |
Family
ID=31871482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12379590U Pending JPH0480904U (en) | 1990-11-26 | 1990-11-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0480904U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0640550U (en) * | 1992-11-02 | 1994-05-31 | 日信工業株式会社 | Liquid pressure controller |
| JPH0640549U (en) * | 1992-10-26 | 1994-05-31 | 日信工業株式会社 | Liquid pressure controller |
-
1990
- 1990-11-26 JP JP12379590U patent/JPH0480904U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0640549U (en) * | 1992-10-26 | 1994-05-31 | 日信工業株式会社 | Liquid pressure controller |
| JPH0640550U (en) * | 1992-11-02 | 1994-05-31 | 日信工業株式会社 | Liquid pressure controller |
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