JPS58104404U - hydraulic control valve - Google Patents

hydraulic control valve

Info

Publication number
JPS58104404U
JPS58104404U JP256882U JP256882U JPS58104404U JP S58104404 U JPS58104404 U JP S58104404U JP 256882 U JP256882 U JP 256882U JP 256882 U JP256882 U JP 256882U JP S58104404 U JPS58104404 U JP S58104404U
Authority
JP
Japan
Prior art keywords
hydraulic control
control valve
switching
metering orifice
pump
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
JP256882U
Other languages
Japanese (ja)
Other versions
JPH0110487Y2 (en
Inventor
松永　千春
Original Assignee
東芝機械株式会社
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 by 東芝機械株式会社 filed Critical 東芝機械株式会社
Priority to JP256882U priority Critical patent/JPS58104404U/en
Publication of JPS58104404U publication Critical patent/JPS58104404U/en
Application granted granted Critical
Publication of JPH0110487Y2 publication Critical patent/JPH0110487Y2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Operation Control Of Excavators (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

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本考案の一実施例を示す断面図、第２図は鯖１
図における作動状態を示す断面図である。 １は油圧制御弁、？、　　８．　９．　１０・・・切換
弁、　　　　　・７ａ、　８ａ、　　９ａ、　　１０ａ
・・・スプール、１１・・・第１のポンプ、１５・・・
第２のポンプ、１８・・・センタバイパス通路、２１・
・・合流ポート、３２．３３・・・メー　　　　　。 タリングオリフイス、３４．３５・・・チェック弁。 ＼Figure 1 is a sectional view showing one embodiment of the present invention, Figure 2 is a mackerel 1
It is a sectional view showing an operating state in the figure. 1 is a hydraulic control valve, ? , 8. 9. 10...Switching valve, ・7a, 8a, 9a, 10a
...Spool, 11...First pump, 15...
Second pump, 18... Center bypass passage, 21...
...Merge port, 32.33...Meh. Talling orifice, 34.35...check valve. \

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 第１のポンプに対しタンデム接続をなす複数個の切換弁
を有し、その複数個の切換弁のタンデム接続点より下流
に合流ポートを有し、竺の合流ポートに第２のポンプを
接続するようにした油圧制御弁において、前記タンデム
接続点の上流側に位置する切換弁スプールのセンタバイ
パス部にメータリングオリフィスを設け、前記切換弁ス
プールのハーフストローク操作時、前記メータリングオ
リフィスから下流には通油しこれとは逆の流れを阻止す
るチェック弁を前記切換邦文プールに設けたことを特徴
とする油圧制御弁。It has a plurality of switching valves connected in tandem to the first pump, has a merging port downstream from the tandem connection point of the plurality of switching valves, and connects the second pump to the merging port. In the hydraulic control valve, a metering orifice is provided in the center bypass portion of the switching valve spool located upstream of the tandem connection point, and when the switching valve spool is operated at a half stroke, a metering orifice is provided downstream from the metering orifice. A hydraulic control valve characterized in that the switching pool is provided with a check valve that allows oil to flow and prevents a flow in the opposite direction.
JP256882U 1982-01-12 1982-01-12 hydraulic control valve Granted JPS58104404U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP256882U JPS58104404U (en) 1982-01-12 1982-01-12 hydraulic control valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP256882U JPS58104404U (en) 1982-01-12 1982-01-12 hydraulic control valve

Publications (2)

Publication Number Publication Date
JPS58104404U true JPS58104404U (en) 1983-07-15
JPH0110487Y2 JPH0110487Y2 (en) 1989-03-27

Family

ID=30015546

Family Applications (1)

Application Number Title Priority Date Filing Date
JP256882U Granted JPS58104404U (en) 1982-01-12 1982-01-12 hydraulic control valve

Country Status (1)

Country Link
JP (1) JPS58104404U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0258103U (en) * 1988-10-20 1990-04-26
JP2011522195A (en) * 2008-06-02 2011-07-28 イートン コーポレーション Valve manifold

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0258103U (en) * 1988-10-20 1990-04-26
JP2011522195A (en) * 2008-06-02 2011-07-28 イートン コーポレーション Valve manifold

Also Published As

Publication number Publication date
JPH0110487Y2 (en) 1989-03-27

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