JPS5842803A - コントロ−ルバルブとこれを使用した作業機の回路 - Google Patents

コントロ−ルバルブとこれを使用した作業機の回路

Info

Publication number
JPS5842803A
JPS5842803A JP56141582A JP14158281A JPS5842803A JP S5842803 A JPS5842803 A JP S5842803A JP 56141582 A JP56141582 A JP 56141582A JP 14158281 A JP14158281 A JP 14158281A JP S5842803 A JPS5842803 A JP S5842803A
Authority
JP
Japan
Prior art keywords
flow path
control valve
spool
tank
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
JP56141582A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0253642B2 (enExample
Inventor
Hiroshi Fukaya
浩 深谷
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HANDOOTHE- KOGYO KK
HANDOZER IND CO Ltd
Original Assignee
HANDOOTHE- KOGYO KK
HANDOZER IND CO Ltd
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 HANDOOTHE- KOGYO KK, HANDOZER IND CO Ltd filed Critical HANDOOTHE- KOGYO KK
Priority to JP56141582A priority Critical patent/JPS5842803A/ja
Publication of JPS5842803A publication Critical patent/JPS5842803A/ja
Publication of JPH0253642B2 publication Critical patent/JPH0253642B2/ja
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/205—Systems with pumps
    • F15B2211/20576—Systems with pumps with multiple pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/31—Directional control characterised by the positions of the valve element
    • F15B2211/3105—Neutral or centre positions
    • F15B2211/3116—Neutral or centre positions the pump port being open in the centre position, e.g. so-called open centre
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/40—Flow control
    • F15B2211/45—Control of bleed-off flow, e.g. control of bypass flow to the return line

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Operation Control Of Excavators (AREA)
  • Multiple-Way Valves (AREA)
  • Fluid-Pressure Circuits (AREA)
JP56141582A 1981-09-08 1981-09-08 コントロ−ルバルブとこれを使用した作業機の回路 Granted JPS5842803A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56141582A JPS5842803A (ja) 1981-09-08 1981-09-08 コントロ−ルバルブとこれを使用した作業機の回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56141582A JPS5842803A (ja) 1981-09-08 1981-09-08 コントロ−ルバルブとこれを使用した作業機の回路

Publications (2)

Publication Number Publication Date
JPS5842803A true JPS5842803A (ja) 1983-03-12
JPH0253642B2 JPH0253642B2 (enExample) 1990-11-19

Family

ID=15295342

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56141582A Granted JPS5842803A (ja) 1981-09-08 1981-09-08 コントロ−ルバルブとこれを使用した作業機の回路

Country Status (1)

Country Link
JP (1) JPS5842803A (enExample)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS611086U (ja) * 1984-06-06 1986-01-07 南機械株式会社 乾燥単板のテンダ−ライジング装置
JP2007501914A (ja) * 2003-08-08 2007-02-01 ツェーエヌハー・バウマシイネン・ゲゼルシャフト・ミト・ベシュレンクテル・ハフツング 建設機械のための、特に掘削機のための油圧制御システム
JP2016090033A (ja) * 2014-11-11 2016-05-23 ナブテスコ株式会社 方向切換弁
JP2017141858A (ja) * 2016-02-08 2017-08-17 ナブテスコ株式会社 方向切換弁及び油圧システム
WO2018019741A1 (en) 2016-07-28 2018-02-01 Caterpillar Sarl Valve apparatus and fluid pressure system equipped therewith
CN116529441A (zh) * 2020-11-17 2023-08-01 川崎重工业株式会社 多控制阀

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6552829B2 (ja) * 2015-01-28 2019-07-31 ナブテスコ株式会社 方向切換弁

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS611086U (ja) * 1984-06-06 1986-01-07 南機械株式会社 乾燥単板のテンダ−ライジング装置
JP2007501914A (ja) * 2003-08-08 2007-02-01 ツェーエヌハー・バウマシイネン・ゲゼルシャフト・ミト・ベシュレンクテル・ハフツング 建設機械のための、特に掘削機のための油圧制御システム
JP2016090033A (ja) * 2014-11-11 2016-05-23 ナブテスコ株式会社 方向切換弁
JP2017141858A (ja) * 2016-02-08 2017-08-17 ナブテスコ株式会社 方向切換弁及び油圧システム
WO2018019741A1 (en) 2016-07-28 2018-02-01 Caterpillar Sarl Valve apparatus and fluid pressure system equipped therewith
JP2018017347A (ja) * 2016-07-28 2018-02-01 キャタピラー エス エー アール エル 弁装置およびこれを備えた流体圧システム
CN109563854A (zh) * 2016-07-28 2019-04-02 卡特彼勒Sarl 阀装置和配备该阀装置的流体压力系统
CN109563854B (zh) * 2016-07-28 2020-09-15 卡特彼勒Sarl 阀装置和配备该阀装置的流体压力系统
US11428333B2 (en) 2016-07-28 2022-08-30 Caterpillar Sarl Valve apparatus and fluid pressure system equipped therewith
CN116529441A (zh) * 2020-11-17 2023-08-01 川崎重工业株式会社 多控制阀

Also Published As

Publication number Publication date
JPH0253642B2 (enExample) 1990-11-19

Similar Documents

Publication Publication Date Title
EP0262604B1 (en) Hydraulic circuit for hydraulic construction machine
US4528892A (en) Hydraulic circuit system for construction machine
US2289567A (en) Valve
US20070144819A1 (en) Passively rephasing piston
JPS5842803A (ja) コントロ−ルバルブとこれを使用した作業機の回路
JPH0444881Y2 (enExample)
CN107044551A (zh) 换向阀和液压系统
US5692427A (en) Flow reinforcement directional control valve for a hydraulic circuit
KR930002370B1 (ko) 백호우(back-hoe)의 유압회로
JPH07238575A (ja) 走行用油圧装置
JPH0658444A (ja) 方向制御弁
JPH0143162B2 (enExample)
US3353556A (en) Control valves
JPS60123629A (ja) 油圧ショベルの油圧回路
JPS5834205A (ja) 液圧回路
JPH08170353A (ja) 多連式方向切換弁
KR100208736B1 (ko) 유압식 기계장비의 제어밸브
JPH0328621B2 (enExample)
JPS5883737A (ja) 土木・建設機械の油圧回路
JP2644268B2 (ja) 油圧駆動車両の走行油圧制御装置
JPH01203702A (ja) 油圧方向制御弁装置
JPS58177725A (ja) 自動車用変速機のシフトレバ−操作装置
JPH0442562Y2 (enExample)
JP3330385B2 (ja) 建設車両の直進走行装置
JP4558451B2 (ja) 弁装置