KR960001572A - 압력보상밸브를 구비한 방향제어밸브장치 - Google Patents

압력보상밸브를 구비한 방향제어밸브장치 Download PDF

Info

Publication number
KR960001572A
KR960001572A KR1019950010338A KR19950010338A KR960001572A KR 960001572 A KR960001572 A KR 960001572A KR 1019950010338 A KR1019950010338 A KR 1019950010338A KR 19950010338 A KR19950010338 A KR 19950010338A KR 960001572 A KR960001572 A KR 960001572A
Authority
KR
South Korea
Prior art keywords
valve
pressure
control valve
directional control
juice pool
Prior art date
Application number
KR1019950010338A
Other languages
English (en)
Inventor
나오키 이시자키
미쭈마사 아카시
Original Assignee
카타다 테쯔야
카부시키가이샤 코마쯔세이사쿠쇼
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 카타다 테쯔야, 카부시키가이샤 코마쯔세이사쿠쇼 filed Critical 카타다 테쯔야
Publication of KR960001572A publication Critical patent/KR960001572A/ko

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
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • 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
    • F15B13/0401—Valve members; Fluid interconnections therefor
    • F15B13/0402—Valve members; Fluid interconnections therefor for linearly sliding valves, e.g. spool valves
    • F15B13/0403—Valve members; Fluid interconnections therefor for linearly sliding valves, e.g. spool valves a secondary valve member sliding within the main spool, e.g. for regeneration flow
    • 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
    • F15B13/0416—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor with means or adapted for load sensing
    • F15B13/0417—Load sensing elements; Internal fluid connections therefor; Anti-saturation or pressure-compensation valves
    • 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
    • F15B13/0416—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor with means or adapted for load sensing
    • F15B13/0417—Load sensing elements; Internal fluid connections therefor; Anti-saturation or pressure-compensation valves
    • F15B13/0418—Load sensing elements sliding within a hollow main valve spool
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/87169—Supply and exhaust
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/87169—Supply and exhaust
    • Y10T137/87177—With bypass
    • Y10T137/87185—Controlled by supply or exhaust valve

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Check Valves (AREA)

Abstract

본 발명은 중립시에 유압펌프의 토출압이 높게 되는 일이 없도록 하고 또 액츄에이터를 작동할 때에 외부부하로 강하하지 않도록 하기 위한 것으로, 밸브 블록(30)에 방향제어밸브(22)로 되는 주스푸울(49)과, 압력보상밸브(25)로 되는 체크밸브(23)및 감압밸브부(24)를 설치한 압력보상밸브를 구비한 방향제어 밸브장치에 있어서, 상기한 주스푸울(49)에 압발부(5)와 통로(8)를 형성하고 주스푸울(49)이 중립위치일 때에는 압발부(5)에서 부하압검출포오트(45)를 제1탱크포오트(47)와 연통하여 주스푸울(49)이 연통위치일 때에는 압발부(5)를 차단하고, 또한 부하압검출포오트(45)를 통로(8)에서 제1액유에이터포오트(34)와 연통한다.

Description

압력보상밸브를 구비한 방향제어밸브장치
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는, 종래예의 단면도,
제2도는, 본 발명의 실시예를 표시하는 전체단면도,
제3도는, 주요부분의 확대단면도.

Claims (2)

  1. 밸브블록(30)에 방향제어밸브(22)로 되는 주스푸울(49)과, 압력보상밸브(25)로 도는 체크밸브부(23)및 감압밸브부(24)를 설치한 압력보상밸브를 구비한 방향제어밸브장치에 있어서, 주스푸울(49)의 위치가 중립위치로부터 연통위치의 직전 위치까지일 때에, 제1,2부하압검출포오트(45), (46)와 제1,제2탱크포오트(47),(48)를 연통하는 압발부(5)와, 주스푸울(49)의 취치가 중립위치와 연통위치의 중간위치일 때에 제1, 제2액츄에이터포오트(34),(35)와, 제1,2부하압검출포오트(45),(46)를 연통하는 역류방지기능을 보유하는 통로(8)를 각각 형성한 것을 특징으로 하는 특징으로 하는 압력보상밸브를 구비한 방향 제어밸브 장치.
  2. 제1항에 있어서, 상기한 압발부(5)와 통로(8)를 주스푸울 (49)의 내부에 형성함과 아울러, 통로(8)가 연통된 후에 압발부(5)가 차단되고 그 후에 제1, 제2부하압검출포오트(45),(46)가 제1, 제2액츄에이터포오트(34), (35)와 연통하도록 한 것을 특징으로 하는 압력보상밸브를 구비한 방향제어밸브장치.
    ※참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019950010338A 1994-06-27 1995-04-28 압력보상밸브를 구비한 방향제어밸브장치 KR960001572A (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP14454094A JP3531758B2 (ja) 1994-06-27 1994-06-27 圧力補償弁を備えた方向制御弁装置
JP94-144540 1994-06-27

Publications (1)

Publication Number Publication Date
KR960001572A true KR960001572A (ko) 1996-01-25

Family

ID=15364686

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019950010338A KR960001572A (ko) 1994-06-27 1995-04-28 압력보상밸브를 구비한 방향제어밸브장치

Country Status (6)

Country Link
US (1) US5778929A (ko)
EP (1) EP0770783A4 (ko)
JP (1) JP3531758B2 (ko)
KR (1) KR960001572A (ko)
CN (1) CN1151787A (ko)
WO (1) WO1996000351A1 (ko)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100800623B1 (ko) * 2001-05-18 2008-02-05 주식회사 엘지이아이 공기조화기의 운전제어방법

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4782711B2 (ja) * 2007-02-21 2011-09-28 日立建機株式会社 方向制御弁装置およびこの方向制御弁装置を複数備えた方向制御弁装置ブロック
CN102094863B (zh) * 2010-12-30 2013-09-04 江苏国瑞液压机械有限公司 可变换压力补偿方式的电液比例多路控制阀
CN102889257B (zh) * 2012-09-20 2015-05-13 三一重工股份有限公司 带差动功能的滑阀式液压阀
JP6167004B2 (ja) * 2013-10-04 2017-07-19 川崎重工業株式会社 コントロール弁
EP2891806A1 (en) * 2014-01-03 2015-07-08 Danfoss Power Solutions Aps A hydraulic valve arrangement
DE102014003086A1 (de) * 2014-03-01 2015-09-03 Hydac Filtertechnik Gmbh Ventilvorrichtung
WO2018071412A1 (en) * 2016-10-10 2018-04-19 Hydraforce, Inc. Hydraulic control valve for controlling pressure drop across motors
CN109441905B (zh) * 2018-12-26 2020-01-07 太原理工大学 一种变压差负载敏感多路阀
US20240102495A1 (en) * 2020-01-27 2024-03-28 Parker-Hannifin Corporation Valve with an Adjustable Flow Sharing Pressure Compensator

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8801058U1 (de) * 1988-01-29 1988-03-10 Danfoss A/S, Nordborg Hydraulisches Steuerventil mit Druckfühleinrichtung
JPH0251701A (ja) * 1988-08-16 1990-02-21 Mitsubishi Electric Corp 温度検知機構付制御装置
JPH0740083Y2 (ja) * 1988-10-05 1995-09-13 有限会社住吉製作所 液圧駆動装置における制御装置
JPH0768962B2 (ja) * 1990-06-22 1995-07-26 株式会社ゼクセル ロードセンシング機能付き方向切換弁
JP3216815B2 (ja) * 1991-01-23 2001-10-09 株式会社小松製作所 圧力補償弁を有する油圧回路
DE4391634T1 (de) * 1992-04-08 1995-06-01 Komatsu Mfg Co Ltd Druckfluid-Zuführsystem
JPH05332306A (ja) * 1992-05-29 1993-12-14 Komatsu Ltd 圧油供給装置
FR2694605B1 (fr) * 1992-08-04 1994-11-10 Bennes Marrel Ensemble de commande d'une pluralité de récepteurs hydrauliques.
EP0747601B1 (en) * 1992-10-23 2000-04-12 Kabushiki Kaisha Komatsu Seisakusho Pressure oil supply system having a pressure compensating valve

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100800623B1 (ko) * 2001-05-18 2008-02-05 주식회사 엘지이아이 공기조화기의 운전제어방법

Also Published As

Publication number Publication date
JP3531758B2 (ja) 2004-05-31
US5778929A (en) 1998-07-14
CN1151787A (zh) 1997-06-11
EP0770783A4 (en) 1997-09-24
JPH0814206A (ja) 1996-01-16
WO1996000351A1 (fr) 1996-01-04
EP0770783A1 (en) 1997-05-02

Similar Documents

Publication Publication Date Title
KR960001572A (ko) 압력보상밸브를 구비한 방향제어밸브장치
KR960001360A (ko) 유압구동식 주행장치의 주행제어회로
KR920704019A (ko) 유압 회로장치
US4037410A (en) Hydraulic control valve
KR950027236A (ko) 압력보상밸브 및 압유공급장치
KR960023845A (ko) 지게차의 앤티스톨밸브를 이용한 유압회로
KR920701694A (ko) 작업기 실린더의 조작유압 회로장치
KR960008078A (ko) 유압셔블의 붐실린더용 유압회로
US4561463A (en) Sectional valve having dual pressure relief
KR960022041A (ko) 유체 브레이크장치
US5320191A (en) Steering circuit system for a moving vehicle
EP0416130A4 (en) Hydraulic valve capable of pressure compensation
WO2002061288A3 (de) Hydraulische betätigungsanordnung und hydraulisch sperrbares rückschlagventil
KR960023541A (ko) 유압 액츄에이터의 반전방지장치
US4338962A (en) Control and relief valves
CA2214209A1 (en) Hydraulic system
KR950025210A (ko) 주행용 유압장치
KR920701697A (ko) 유압 회로 장치
GB2238355A (en) An hydraulic pump
KR960008074A (ko) 건설중장비의 대용량 압력감지형 언로딩시스템
KR930010391A (ko) 작업장치 작동부의 압력보상용 유량제어 장치
CA2214227A1 (en) Control valve
JPS6145101A (ja) アンロ−ド回路
KR970045570A (ko) 오일펌프의 유압조절기
EP0396760A4 (en) Operation valve device

Legal Events

Date Code Title Description
A201 Request for examination
E701 Decision to grant or registration of patent right
NORF Unpaid initial registration fee