ITTO20060235A1 - Circuito idraulico - Google Patents

Circuito idraulico

Info

Publication number
ITTO20060235A1
ITTO20060235A1 IT000235A ITTO20060235A ITTO20060235A1 IT TO20060235 A1 ITTO20060235 A1 IT TO20060235A1 IT 000235 A IT000235 A IT 000235A IT TO20060235 A ITTO20060235 A IT TO20060235A IT TO20060235 A1 ITTO20060235 A1 IT TO20060235A1
Authority
IT
Italy
Prior art keywords
hydraulic circuit
hydraulic
circuit
Prior art date
Application number
IT000235A
Other languages
English (en)
Inventor
Kensuke Ioku
Original Assignee
Nabtesco Corp
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 Nabtesco Corp filed Critical Nabtesco Corp
Publication of ITTO20060235A1 publication Critical patent/ITTO20060235A1/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
    • F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
    • F15B11/17—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors using two or more pumps
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
    • G07D7/00—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
    • G07D7/06—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency using wave or particle radiation
    • G07D7/12—Visible light, infrared or ultraviolet radiation
    • 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
    • E02F9/2221—Control of flow rate; Load sensing arrangements
    • E02F9/2239—Control of flow rate; Load sensing arrangements using two or more pumps with cross-assistance
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
    • G07D7/00—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
    • G07D7/14—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency using chemical means
    • 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
    • F15B2211/2053—Type of pump
    • F15B2211/20546—Type of pump variable capacity
    • 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
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/3056—Assemblies of multiple valves
    • F15B2211/3059—Assemblies of multiple valves having multiple valves for multiple output members
    • F15B2211/30595—Assemblies of multiple valves having multiple valves for multiple output members with additional valves between the groups of valves for multiple output members
    • 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
    • F15B2211/3111—Neutral or centre positions the pump port being closed in the centre position, e.g. so-called closed 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
    • F15B2211/50—Pressure control
    • F15B2211/505—Pressure control characterised by the type of pressure control means
    • F15B2211/50509—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means
    • F15B2211/50536—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means using unloading valves controlling the supply pressure by diverting fluid to the return line
    • 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
    • F15B2211/50—Pressure control
    • F15B2211/515—Pressure control characterised by the connections of the pressure control means in the circuit
    • F15B2211/5157—Pressure control characterised by the connections of the pressure control means in the circuit being connected to a pressure source and a return line
    • 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
    • F15B2211/50—Pressure control
    • F15B2211/52—Pressure control characterised by the type of actuation
    • F15B2211/526—Pressure control characterised by the type of actuation electrically or electronically
    • 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
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/71—Multiple output members, e.g. multiple hydraulic motors or cylinders
    • F15B2211/7142—Multiple output members, e.g. multiple hydraulic motors or cylinders the output members being arranged in multiple groups
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
    • G07D2207/00—Paper-money testing devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid Mechanics (AREA)
  • General Health & Medical Sciences (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Toxicology (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Operation Control Of Excavators (AREA)
  • Fluid-Pressure Circuits (AREA)
IT000235A 2005-03-31 2006-03-29 Circuito idraulico ITTO20060235A1 (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005100744A JP4541209B2 (ja) 2005-03-31 2005-03-31 油圧回路

Publications (1)

Publication Number Publication Date
ITTO20060235A1 true ITTO20060235A1 (it) 2006-10-01

Family

ID=37185414

Family Applications (1)

Application Number Title Priority Date Filing Date
IT000235A ITTO20060235A1 (it) 2005-03-31 2006-03-29 Circuito idraulico

Country Status (4)

Country Link
US (1) US7350353B2 (it)
JP (1) JP4541209B2 (it)
KR (1) KR100749316B1 (it)
IT (1) ITTO20060235A1 (it)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0614534D0 (en) * 2006-07-21 2006-08-30 Artemis Intelligent Power Ltd Fluid power distribution and control system
JP4926627B2 (ja) * 2006-09-21 2012-05-09 ナブテスコ株式会社 電油システム
DE202007005232U1 (de) * 2007-04-11 2008-08-14 Liebherr Mining Equipment Co. Kipplaster
JP5528276B2 (ja) 2010-09-21 2014-06-25 株式会社クボタ 作業機の油圧システム
CN103339387B (zh) * 2010-12-27 2015-11-25 沃尔沃建造设备有限公司 用于施工机械的液压泵
DE102011108851A1 (de) * 2011-07-28 2013-01-31 Liebherr-Werk Ehingen Gmbh Kransteuerungssystem
JP6034773B2 (ja) * 2013-11-13 2016-11-30 株式会社クボタ 作業機
JP6005088B2 (ja) * 2014-03-17 2016-10-12 日立建機株式会社 建設機械の油圧駆動装置
EP3076028B1 (en) * 2015-04-02 2023-07-05 Walvoil S.p.A. Hydraulic load-sensing flow-sharing system
US10385545B2 (en) 2016-07-29 2019-08-20 Komatsu Ltd. Control system, work machine, and control method
WO2017022866A1 (ja) 2016-08-26 2017-02-09 株式会社小松製作所 制御システム、作業機械、及び制御方法
DE102017210823A1 (de) * 2017-06-27 2018-12-27 Robert Bosch Gmbh Ventilblockanordnung und Verfahren für eine Ventilblockanordnung

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1952034A1 (de) * 1969-10-15 1971-04-22 Linde Ag Steuereinrichtung fuer eine hydraulische Anlage und Ventil hierzu
JPS6030734A (ja) * 1983-07-29 1985-02-16 Sumitomo Heavy Ind Ltd 油圧ショベルの油圧回路
JPS60123630A (ja) * 1983-12-06 1985-07-02 Kayaba Ind Co Ltd 建設車両の制御回路
JPH0352275Y2 (it) * 1985-10-16 1991-11-12
JP2551543B2 (ja) * 1988-06-17 1996-11-06 油谷重工株式会社 油圧ショベルの油圧回路
US4986072A (en) * 1989-08-31 1991-01-22 Kabushiki Kaisha Kobe Seiko Sho Hydraulic actuator circuit with flow-joining control
KR960016820B1 (ko) * 1990-09-01 1996-12-21 도시바기카이 가부시키가이샤 유압작업회로
DE4100988C2 (de) * 1991-01-15 2001-05-10 Linde Ag Hydraulisches Antriebssystem
JPH083194B2 (ja) * 1992-04-03 1996-01-17 カヤバ工業株式会社 建設車両の油圧回路
JP3013225B2 (ja) * 1995-01-11 2000-02-28 新キャタピラー三菱株式会社 吊り作業制御装置
JPH10252105A (ja) 1997-03-12 1998-09-22 Komatsu Ltd パワーショベルの油圧回路及び合流・切換弁
JP3741244B2 (ja) * 1998-02-02 2006-02-01 株式会社小松製作所 建設機械の油圧回路
JP2001074002A (ja) * 1999-09-08 2001-03-23 Hitachi Constr Mach Co Ltd 油圧回路装置
JP2003004003A (ja) * 2001-06-22 2003-01-08 Kobelco Contstruction Machinery Ltd 油圧ショベルの油圧制御回路
KR100561920B1 (ko) * 2001-06-28 2006-03-20 얀마 가부시키가이샤 유압식 무단변속장치 및 동력전달장치
JP3614121B2 (ja) * 2001-08-22 2005-01-26 コベルコ建機株式会社 建設機械の油圧装置
JP3777114B2 (ja) * 2001-11-05 2006-05-24 日立建機株式会社 油圧作業機の油圧回路装置
JP4137431B2 (ja) * 2001-11-09 2008-08-20 ナブテスコ株式会社 油圧回路
JP2004019810A (ja) * 2002-06-17 2004-01-22 Hitachi Constr Mach Co Ltd 方向切換弁装置

Also Published As

Publication number Publication date
US20060236688A1 (en) 2006-10-26
JP2006283784A (ja) 2006-10-19
KR20060106660A (ko) 2006-10-12
KR100749316B1 (ko) 2007-08-14
US7350353B2 (en) 2008-04-01
JP4541209B2 (ja) 2010-09-08

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