JPH0393666U - - Google Patents

Info

Publication number
JPH0393666U
JPH0393666U JP198190U JP198190U JPH0393666U JP H0393666 U JPH0393666 U JP H0393666U JP 198190 U JP198190 U JP 198190U JP 198190 U JP198190 U JP 198190U JP H0393666 U JPH0393666 U JP H0393666U
Authority
JP
Japan
Prior art keywords
pilot
switching
valve
main valve
switched
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
Application number
JP198190U
Other languages
English (en)
Other versions
JPH067243Y2 (ja
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1990001981U priority Critical patent/JPH067243Y2/ja
Publication of JPH0393666U publication Critical patent/JPH0393666U/ja
Application granted granted Critical
Publication of JPH067243Y2 publication Critical patent/JPH067243Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Fluid-Driven Valves (AREA)

Description

【図面の簡単な説明】
第1〜5図は本考案を具体化した一実施例を示
し、第1図は中立状態を示す縦断面図、第2図は
一方の作動流体供給状態を示す縦断面図、第3図
は第2図から中立復帰開始した状態を示す縦断面
図、第4図は他方の作動流体供給状態を示す縦断
面図、第5図は第4図から中立復帰開始した状態
を示す縦断面図、第6,7図は別例を示し、第6
図は中立状態を示す縦断面図、第7図は作動流体
供給状態を示す縦断面図である。 1……主弁としてのスプール弁、9……復帰ば
ね、13,14……パイロツト弁、P,P
…背圧領域を兼ねるパイロツト圧室、L……背圧
管路、La……排気管路。

Claims (1)

    【実用新案登録請求の範囲】
  1. パイロツト弁13,14の切り換え供給動作に
    よつて主弁1を復帰ばね9に抗して作動流体供給
    位置へ切り換え配置すると共に、パイロツト弁1
    3,14の切り換え排気動作によつて主弁1を復
    帰ばね9の作用で中立位置へ切り換え配置する方
    向切り換え弁において、パイロツト弁13,14
    の切り換え供給動作によつて供給されるパイロツ
    ト流体を主弁1に作用させるパイロツト圧室P
    ,Pに対応して背圧領域P,Pを設け、背
    圧領域P,Pとパイロツト弁13,14の排
    気ポート13c,14cとを背圧通路Lで接続す
    ると共に、この背圧通路L上には絞り作用を備え
    た排気通路Laを接続したことを特徴とする方向
    切り換え弁。
JP1990001981U 1990-01-12 1990-01-12 方向切り換え弁 Expired - Lifetime JPH067243Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1990001981U JPH067243Y2 (ja) 1990-01-12 1990-01-12 方向切り換え弁

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1990001981U JPH067243Y2 (ja) 1990-01-12 1990-01-12 方向切り換え弁

Publications (2)

Publication Number Publication Date
JPH0393666U true JPH0393666U (ja) 1991-09-25
JPH067243Y2 JPH067243Y2 (ja) 1994-02-23

Family

ID=31505865

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1990001981U Expired - Lifetime JPH067243Y2 (ja) 1990-01-12 1990-01-12 方向切り換え弁

Country Status (1)

Country Link
JP (1) JPH067243Y2 (ja)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5569305A (en) * 1978-11-20 1980-05-24 Control Concepts Assembly of feathering valve

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5569305A (en) * 1978-11-20 1980-05-24 Control Concepts Assembly of feathering valve

Also Published As

Publication number Publication date
JPH067243Y2 (ja) 1994-02-23

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