JPS5872507U - Hydraulic closed circuit device - Google Patents

Hydraulic closed circuit device

Info

Publication number
JPS5872507U
JPS5872507U JP16651881U JP16651881U JPS5872507U JP S5872507 U JPS5872507 U JP S5872507U JP 16651881 U JP16651881 U JP 16651881U JP 16651881 U JP16651881 U JP 16651881U JP S5872507 U JPS5872507 U JP S5872507U
Authority
JP
Japan
Prior art keywords
closed circuit
circuit device
hydraulic closed
servo valve
hydraulic
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
Application number
JP16651881U
Other languages
Japanese (ja)
Inventor
寛 大島
裕 吉灘
Original Assignee
株式会社小松製作所
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 株式会社小松製作所 filed Critical 株式会社小松製作所
Priority to JP16651881U priority Critical patent/JPS5872507U/en
Publication of JPS5872507U publication Critical patent/JPS5872507U/en
Pending legal-status Critical Current

Links

Landscapes

  • 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図は従来の閉回路装置の構成説明図、第2図は本考
案−実施例の構成説明図、第3図は本考案の他の実施例
の構成説明図である。 31はチャージ用ポンプ、49はサーボ弁、Cは制御機
構。 □ 第2図 一一−−−−−−−−−−↓−−−J
FIG. 1 is an explanatory diagram of the configuration of a conventional closed circuit device, FIG. 2 is an explanatory diagram of the configuration of an embodiment of the present invention, and FIG. 3 is an explanatory diagram of the configuration of another embodiment of the present invention. 31 is a charging pump, 49 is a servo valve, and C is a control mechanism. □ Figure 2 11--------↓--J

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 閉回路40.40’のチャージ回路41に吐出側が接続
された可変容量形のチャージ用ポンプ31と、チャージ
用ポンプ31の吐出量を制御するサーボ弁49と、操作
レバーの操作により閉回路40.40’の可変容量ポン
プ2,2′の吐出量を制御すると共に閉回路40.40
’の油圧シリンダ3.3′の伸長作動時前記サーボ弁4
9を制御する制御機構Cとを備えたことを特徴とする油
圧閉回路装置。
A variable capacity charging pump 31 whose discharge side is connected to the charging circuit 41 of the closed circuit 40.40', a servo valve 49 that controls the discharge amount of the charging pump 31, and a closed circuit 40. 40' to control the discharge amount of the variable displacement pumps 2, 2' and a closed circuit 40.40
' Hydraulic cylinder 3. Said servo valve 4 when 3' is extended.
9. A hydraulic closed circuit device comprising:
JP16651881U 1981-11-10 1981-11-10 Hydraulic closed circuit device Pending JPS5872507U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16651881U JPS5872507U (en) 1981-11-10 1981-11-10 Hydraulic closed circuit device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16651881U JPS5872507U (en) 1981-11-10 1981-11-10 Hydraulic closed circuit device

Publications (1)

Publication Number Publication Date
JPS5872507U true JPS5872507U (en) 1983-05-17

Family

ID=29958672

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16651881U Pending JPS5872507U (en) 1981-11-10 1981-11-10 Hydraulic closed circuit device

Country Status (1)

Country Link
JP (1) JPS5872507U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010261504A (en) * 2009-05-07 2010-11-18 Yanmar Co Ltd Hydraulic device
JP2011241080A (en) * 2010-05-20 2011-12-01 Toyota Industries Corp Cargo-handling hydraulic circuit device for forklift
WO2013027619A1 (en) * 2011-08-24 2013-02-28 株式会社小松製作所 Hydraulic drive system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010261504A (en) * 2009-05-07 2010-11-18 Yanmar Co Ltd Hydraulic device
JP2011241080A (en) * 2010-05-20 2011-12-01 Toyota Industries Corp Cargo-handling hydraulic circuit device for forklift
WO2013027619A1 (en) * 2011-08-24 2013-02-28 株式会社小松製作所 Hydraulic drive system
JP2013044397A (en) * 2011-08-24 2013-03-04 Komatsu Ltd Hydraulic drive system
US9810246B2 (en) 2011-08-24 2017-11-07 Komatsu Ltd. Hydraulic drive system

Similar Documents

Publication Publication Date Title
JPS60128999U (en) Variable hydraulic pump capacity control device
JPS5872507U (en) Hydraulic closed circuit device
JPS5872506U (en) Hydraulic closed circuit device
JPS5873986U (en) Concrete pump hydraulic circuit
JPS5818697U (en) pressure control valve
JPS6034103U (en) Pump flow control device
JPS5831713U (en) Self-propelled spacecraft
JPS60189602U (en) hydraulic control circuit
JPS59186507U (en) Cylinder for speed control
JPS58163701U (en) hydraulic control device
JPS5882557U (en) Hydraulic closed circuit device
JPS60145287U (en) Variable displacement pump flow control device
JPS6092059U (en) Refrigeration cycle equipment
JPS58123903U (en) hydraulic control circuit
JPS6123503U (en) Compression actuation circuit device
JPS58116771U (en) Variable displacement hydraulic motor control device
JPS5893565U (en) Hydraulic control device for power steering device
JPS6128942U (en) Hydraulic motor reduction circuit device
JPS5886902U (en) Drive device for fluid pressure cylinder
JPS59139588U (en) Control device for variable displacement pump
JPS5899501U (en) Hydraulic closed circuit device
JPS5951861U (en) Hydraulic power shovel hydraulic circuit
JPS60112680U (en) Control device for variable displacement pump
JPS5858107U (en) Hydraulic oil cooling structure
JPS59177803U (en) Hydraulic supply control device