ITMI20032436A1 - Apparato di controllo di una valvola idraulica per la tenuta di carico. - Google Patents

Apparato di controllo di una valvola idraulica per la tenuta di carico.

Info

Publication number
ITMI20032436A1
ITMI20032436A1 IT002436A ITMI20032436A ITMI20032436A1 IT MI20032436 A1 ITMI20032436 A1 IT MI20032436A1 IT 002436 A IT002436 A IT 002436A IT MI20032436 A ITMI20032436 A IT MI20032436A IT MI20032436 A1 ITMI20032436 A1 IT MI20032436A1
Authority
IT
Italy
Prior art keywords
control device
hydraulic valve
load seal
seal
load
Prior art date
Application number
IT002436A
Other languages
English (en)
Inventor
Jin Wook Kim
Original Assignee
Volvo Constr Equip Holding Se
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 Volvo Constr Equip Holding Se filed Critical Volvo Constr Equip Holding Se
Publication of ITMI20032436A1 publication Critical patent/ITMI20032436A1/it

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
    • F15B11/02—Systems essentially incorporating special features for controlling the speed or the actuating force of an output member
    • F15B11/028—Systems essentially incorporating special features for controlling the speed or the actuating force of an output member for controlling the actuating force
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/22—Hydraulic or pneumatic drives
    • E02F9/2264—Arrangements or adaptations of elements for hydraulic drives
    • E02F9/2267—Valves or distributors
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/42—Drives for dippers, buckets, dipper-arms or bucket-arms
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/22—Hydraulic or pneumatic drives
    • E02F9/226—Safety arrangements, e.g. hydraulic driven fans, preventing cavitation, leakage, overheating
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/22—Hydraulic or pneumatic drives
    • E02F9/2264—Arrangements or adaptations of elements for hydraulic drives
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/22—Hydraulic or pneumatic drives
    • E02F9/2264—Arrangements or adaptations of elements for hydraulic drives
    • E02F9/2271—Actuators and supports therefor and protection 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
    • 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
    • F15B13/01—Locking-valves or other detent i.e. load-holding devices
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Fluid-Pressure Circuits (AREA)
IT002436A 2003-05-28 2003-12-12 Apparato di controllo di una valvola idraulica per la tenuta di carico. ITMI20032436A1 (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR10-2003-0034115A KR100518768B1 (ko) 2003-05-28 2003-05-28 부하홀딩용 유압밸브의 제어장치

Publications (1)

Publication Number Publication Date
ITMI20032436A1 true ITMI20032436A1 (it) 2004-11-29

Family

ID=29775053

Family Applications (1)

Application Number Title Priority Date Filing Date
IT002436A ITMI20032436A1 (it) 2003-05-28 2003-12-12 Apparato di controllo di una valvola idraulica per la tenuta di carico.

Country Status (8)

Country Link
US (1) US6907815B2 (it)
JP (1) JP3979654B2 (it)
KR (1) KR100518768B1 (it)
CN (1) CN1324244C (it)
DE (1) DE10356970B4 (it)
FR (1) FR2855623B1 (it)
GB (1) GB2402174B (it)
IT (1) ITMI20032436A1 (it)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100631067B1 (ko) * 2004-05-04 2006-10-02 볼보 컨스트럭션 이키프먼트 홀딩 스웨덴 에이비 홀딩밸브의 응답성이 개선된 유압제어밸브
KR100974273B1 (ko) * 2007-09-14 2010-08-06 볼보 컨스트럭션 이키프먼트 홀딩 스웨덴 에이비 건설중장비용 유량 제어장치
JP2009209999A (ja) * 2008-03-03 2009-09-17 Kayaba Ind Co Ltd 制御弁装置
DE102008038722A1 (de) * 2008-08-12 2011-07-07 Abb Technology Ag Ventileinrichtung und Verfahren zur Ansteuerung eines von einem Stellungsregler druckmittelbeaufschlagten Stellantriebs
DE102008057723A1 (de) * 2008-11-07 2010-05-12 Hydac System Gmbh Vorrichtung zum Ausgleich hydraulischer Wirkdrücke
JP5832634B2 (ja) * 2011-04-19 2015-12-16 ボルボ コンストラクション イクイップメント アーベー 建設機械のブーム制御用油圧回路
DE102011116328A1 (de) * 2011-04-23 2012-10-25 Robert Bosch Gmbh Pressenblock
JP5758348B2 (ja) * 2012-06-15 2015-08-05 住友建機株式会社 建設機械の油圧回路
DE112013006593T5 (de) * 2013-02-05 2015-12-31 Volvo Construction Equipment Ab Drucksteuerventil für eine Baumaschine
CN104019075B (zh) * 2014-06-05 2016-01-20 常德中联重科液压有限公司 平衡阀的测试系统
EP3249114B1 (en) * 2014-12-29 2020-02-19 Volvo Construction Equipment AB Control valve for construction equipment
US9683669B2 (en) 2015-08-27 2017-06-20 Vektek, Inc. Delay valve for a hydraulic work support
JP7116584B2 (ja) * 2018-05-07 2022-08-10 川崎重工業株式会社 弁装置
WO2020072615A1 (en) * 2018-10-02 2020-04-09 Clark Equipment Company Distributed hydraulic system
KR102673204B1 (ko) * 2019-05-30 2024-06-05 볼보 컨스트럭션 이큅먼트 에이비 스풀 밸브 및 이를 포함하는 유압 기계
JP7705753B2 (ja) * 2021-08-10 2025-07-10 カヤバ株式会社 流体圧制御装置

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3906840A (en) * 1972-04-17 1975-09-23 Caterpillar Tractor Co Hydraulic control system for load supporting hydraulic motors
US3943825A (en) * 1972-04-17 1976-03-16 Caterpillar Tractor Co. Hydraulic control system for load supporting hydraulic motors
US4417502A (en) * 1980-11-17 1983-11-29 Dresser Industries, Inc. Load supporting hydraulic circuit with emergency automatic load restraint
JP2686618B2 (ja) * 1988-04-20 1997-12-08 カヤバ工業株式会社 シリンダ制御装置
JPH06229402A (ja) * 1993-01-29 1994-08-16 Toyooki Kogyo Co Ltd 流量方向制御弁装置
JP3502164B2 (ja) * 1994-07-25 2004-03-02 株式会社ナブコ 多連方向切換弁装置
US6186044B1 (en) * 1999-03-08 2001-02-13 Caterpillar Inc. Fluid control system with float capability
JP3627972B2 (ja) 2000-03-17 2005-03-09 新キャタピラー三菱株式会社 作業機械におけるブームシリンダ制御回路
JP3727828B2 (ja) * 2000-05-19 2005-12-21 日立建機株式会社 配管破断制御弁装置
DE10047632B4 (de) 2000-09-26 2014-01-02 Linde Hydraulics Gmbh & Co. Kg Ventileinrichtung für einen doppelt wirkenden hydraulischen Verbraucher

Also Published As

Publication number Publication date
US20040237771A1 (en) 2004-12-02
GB2402174A (en) 2004-12-01
JP2004353860A (ja) 2004-12-16
KR20040102597A (ko) 2004-12-08
FR2855623B1 (fr) 2008-03-14
CN1573129A (zh) 2005-02-02
US6907815B2 (en) 2005-06-21
FR2855623A1 (fr) 2004-12-03
KR100518768B1 (ko) 2005-10-06
CN1324244C (zh) 2007-07-04
GB2402174B (en) 2007-01-03
DE10356970A1 (de) 2005-01-05
JP3979654B2 (ja) 2007-09-19
GB0327191D0 (en) 2003-12-24
DE10356970B4 (de) 2010-11-18

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