DE69920452D1 - Mobile arbeitsmaschine - Google Patents

Mobile arbeitsmaschine

Info

Publication number
DE69920452D1
DE69920452D1 DE69920452T DE69920452T DE69920452D1 DE 69920452 D1 DE69920452 D1 DE 69920452D1 DE 69920452 T DE69920452 T DE 69920452T DE 69920452 T DE69920452 T DE 69920452T DE 69920452 D1 DE69920452 D1 DE 69920452D1
Authority
DE
Germany
Prior art keywords
working machine
mobile working
mobile
machine
working
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.)
Expired - Fee Related
Application number
DE69920452T
Other languages
English (en)
Other versions
DE69920452T2 (de
Inventor
Lars Bruun
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.)
Bruun Ecomate AB
Original Assignee
Bruun Ecomate AB
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
Priority claimed from SE9802323A external-priority patent/SE9802323D0/xx
Priority claimed from SE9802869A external-priority patent/SE521009C2/sv
Priority claimed from SE9901176A external-priority patent/SE9901176D0/xx
Application filed by Bruun Ecomate AB filed Critical Bruun Ecomate AB
Publication of DE69920452D1 publication Critical patent/DE69920452D1/de
Application granted granted Critical
Publication of DE69920452T2 publication Critical patent/DE69920452T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
    • F15B1/02—Installations or systems with accumulators
    • 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
    • E02F9/2217—Hydraulic or pneumatic drives with energy recovery arrangements, e.g. using accumulators, flywheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
    • B66F9/075—Constructional features or details
    • B66F9/20—Means for actuating or controlling masts, platforms, or forks
    • B66F9/22—Hydraulic devices or systems
    • 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
    • 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
    • F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
    • F15B1/02—Installations or systems with accumulators
    • F15B1/024—Installations or systems with accumulators used as a supplementary power source, e.g. to store energy in idle periods to balance pump load
    • 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
    • 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
    • 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
    • F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
    • F15B21/14—Energy-recuperation 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
    • F15B2211/2053—Type of pump
    • F15B2211/20561—Type of pump reversible
    • 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
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/21—Systems with pressure sources other than pumps, e.g. with a pyrotechnical charge
    • F15B2211/212—Systems with pressure sources other than pumps, e.g. with a pyrotechnical charge the pressure sources being accumulators
    • 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
    • F15B2211/30565—Assemblies of multiple valves having multiple valves for a single output member, e.g. for creating higher valve function by use of multiple valves like two 2/2-valves replacing a 5/3-valve
    • F15B2211/3057—Assemblies of multiple valves having multiple valves for a single output member, e.g. for creating higher valve function by use of multiple valves like two 2/2-valves replacing a 5/3-valve having two valves, one for each port of a double-acting output member
    • 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
    • F15B2211/50—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
    • F15B2211/50518—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means using pressure relief 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
    • 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
    • F15B2211/5159—Pressure control characterised by the connections of the pressure control means in the circuit being connected to an output member 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
    • F15B2211/60—Circuit components or control therefor
    • F15B2211/625—Accumulators
    • 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
    • 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
    • F15B2211/78—Control of multiple output members
    • F15B2211/781—Control of multiple output members one or more output members having priority

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Civil Engineering (AREA)
  • Transportation (AREA)
  • Chemical & Material Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Combustion & Propulsion (AREA)
  • Analytical Chemistry (AREA)
  • Operation Control Of Excavators (AREA)
  • Fluid-Pressure Circuits (AREA)
DE69920452T 1998-06-27 1999-06-23 Mobile arbeitsmaschine Expired - Fee Related DE69920452T2 (de)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
SE9802323 1998-06-27
SE9802323A SE9802323D0 (sv) 1998-06-27 1998-06-27 Kolvpump system med ackumulator
SE9802869 1998-08-25
SE9802869A SE521009C2 (sv) 1998-08-25 1998-08-25 Lyftcylinder i slutet system
SE9901176A SE9901176D0 (sv) 1999-03-31 1999-03-31 Energisparsystem för hanteringsmaskiner med svängrörelse
SE9901176 1999-03-31
PCT/SE1999/001131 WO2000000748A1 (en) 1998-06-27 1999-06-23 Mobile working machine

Publications (2)

Publication Number Publication Date
DE69920452D1 true DE69920452D1 (de) 2004-10-28
DE69920452T2 DE69920452T2 (de) 2005-11-10

Family

ID=27355929

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69920452T Expired - Fee Related DE69920452T2 (de) 1998-06-27 1999-06-23 Mobile arbeitsmaschine

Country Status (7)

Country Link
US (1) US6584769B1 (de)
EP (1) EP1092097B1 (de)
JP (1) JP2002519597A (de)
KR (1) KR20010071622A (de)
AU (1) AU4943699A (de)
DE (1) DE69920452T2 (de)
WO (1) WO2000000748A1 (de)

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US8606451B2 (en) 2010-10-06 2013-12-10 Caterpillar Global Mining Llc Energy system for heavy equipment
US8718845B2 (en) 2010-10-06 2014-05-06 Caterpillar Global Mining Llc Energy management system for heavy equipment
US9190852B2 (en) 2012-09-21 2015-11-17 Caterpillar Global Mining Llc Systems and methods for stabilizing power rate of change within generator based applications

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SE521308C2 (sv) * 1999-12-27 2003-10-21 Bruun Ecomate Ab Mobil hanteringsanordning med hydraulkrets
DE10006013A1 (de) * 2000-02-11 2001-08-23 Hydac Technology Gmbh Vorrichtung zur Energieeinsparung bei hydraulisch betätigbaren Arbeitsgerätschaften
HRP20030051A2 (en) * 2000-08-18 2004-02-29 Bucher Hydraulics Ag Hydraulic lift with an accumulator
SE523397C2 (sv) * 2001-05-22 2004-04-13 Bruun Ecomate Ab Mobil hanteringsanordning
SE519970C2 (sv) * 2001-09-07 2003-05-06 Bruun Ecomate Ab Hydrauldrivet armsystem med flytreglering
US6655136B2 (en) 2001-12-21 2003-12-02 Caterpillar Inc System and method for accumulating hydraulic fluid
US6748738B2 (en) 2002-05-17 2004-06-15 Caterpillar Inc. Hydraulic regeneration system
JP2004011168A (ja) * 2002-06-04 2004-01-15 Komatsu Ltd 建設機械
US6789387B2 (en) 2002-10-01 2004-09-14 Caterpillar Inc System for recovering energy in hydraulic circuit
US6854268B2 (en) 2002-12-06 2005-02-15 Caterpillar Inc Hydraulic control system with energy recovery
JP4667801B2 (ja) * 2004-09-10 2011-04-13 日本輸送機株式会社 油圧システム及びこれを備えたフォークリフト
US7124576B2 (en) * 2004-10-11 2006-10-24 Deere & Company Hydraulic energy intensifier
DE102004061559A1 (de) * 2004-12-21 2006-06-29 Brueninghaus Hydromatik Gmbh Hydraulischer Antrieb
US7269944B2 (en) * 2005-09-30 2007-09-18 Caterpillar Inc. Hydraulic system for recovering potential energy
US7234298B2 (en) * 2005-10-06 2007-06-26 Caterpillar Inc Hybrid hydraulic system and work machine using same
DE102006020441B4 (de) * 2006-05-03 2017-01-26 Bucyrus Hex Gmbh Verfahren zur Lastminderung eines oder mehrerer Motore in einem Groß-Hydraulikbagger
US7478489B2 (en) * 2006-06-01 2009-01-20 Deere & Company Control system for an electronic float feature for a loader
JP2008014468A (ja) * 2006-07-10 2008-01-24 Shin Caterpillar Mitsubishi Ltd 作業機械における油圧制御システム
JP4753307B2 (ja) * 2006-07-11 2011-08-24 キャタピラー エス エー アール エル 作業機械における油圧制御システム
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US20110064706A1 (en) * 2008-01-11 2011-03-17 U.S. Nutraceuticals, Llc D/B/A Valensa International Method of preventing, controlling and ameliorating urinary tract infections and supporting digestive health by using a synergistic cranberry derivative, a d-mannose composition and a proprietary probiotic blend
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US20110056194A1 (en) * 2009-09-10 2011-03-10 Bucyrus International, Inc. Hydraulic system for heavy equipment
KR101637572B1 (ko) * 2009-12-24 2016-07-08 두산인프라코어 주식회사 건설장비의 펌프제어 작동시스템
KR101637573B1 (ko) * 2009-12-24 2016-07-08 두산인프라코어 주식회사 건설장비의 펌프제어 작동시스템
DE102010012975A1 (de) * 2010-03-22 2011-09-22 Hydac Technology Gmbh Hydrostatisches Hybrid-Antriebssystem
US8362629B2 (en) * 2010-03-23 2013-01-29 Bucyrus International Inc. Energy management system for heavy equipment
DE102010040754A1 (de) 2010-09-14 2012-03-15 Zf Friedrichshafen Ag Hydraulische Antriebsanordnung
US8626403B2 (en) 2010-10-06 2014-01-07 Caterpillar Global Mining Llc Energy management and storage system
US9422141B2 (en) 2010-10-22 2016-08-23 Tld Canada Inc. System and method for managing a current flow in a lift machine
US9279236B2 (en) 2012-06-04 2016-03-08 Caterpillar Inc. Electro-hydraulic system for recovering and reusing potential energy
US8997476B2 (en) 2012-07-27 2015-04-07 Caterpillar Inc. Hydraulic energy recovery system
US9290912B2 (en) * 2012-10-31 2016-03-22 Caterpillar Inc. Energy recovery system having integrated boom/swing circuits
JP6090781B2 (ja) * 2013-01-28 2017-03-08 キャタピラー エス エー アール エル エンジンアシスト装置および作業機械
US9290911B2 (en) 2013-02-19 2016-03-22 Caterpillar Inc. Energy recovery system for hydraulic machine
US20150219126A1 (en) * 2014-02-06 2015-08-06 Caterpillar Inc. Multi-Function Hydraulic Hybrid Swing Circuit
DE102014218886B3 (de) * 2014-09-19 2015-11-12 Voith Patent Gmbh Hydraulischer Antrieb mit Eilhub und Lasthub
CN104454683B (zh) * 2014-11-13 2016-08-31 浙江大学 一种基于液容储能的新型液压变压装置
CN105805066B (zh) * 2016-05-06 2017-07-25 同济大学 双马达型液压起网绞车能量回收试验台
CN108138818B (zh) * 2016-09-29 2020-06-23 日立建机株式会社 液压驱动装置
IT201700075075A1 (it) * 2017-07-04 2019-01-04 Flii Vismara S R L Sistema idraulico a bassa potenza per la movimentazione verticale di una cabina o di una piattaforma per la movimentazione di persone e/o cose
CN108591144B (zh) * 2018-07-02 2023-07-25 福建工程学院 电机驱动双定量泵双蓄能器的分布式直驱挖掘机液压系统
IT201800007019A1 (it) * 2018-07-09 2020-01-09 Impianto fluidodinamico per l'azionamento controllato della slitta di una pressa
CN109185248B (zh) * 2018-10-31 2023-11-21 湖南农业大学 一种用于高地隙植保机自适应调平底盘的调平系统及其调平方法
CN111237264B (zh) * 2020-02-26 2024-11-29 浙江迦南科技股份有限公司 用于实现双作用油缸精确控制的油路结构
CN111795016B (zh) * 2020-04-30 2022-08-12 武汉船用机械有限责任公司 用于油缸控制的液压系统
CN116494941B (zh) * 2023-05-11 2025-09-19 三一重型装备有限公司 制动阀组、液压制动系统和工程机械
CN118582436B (zh) * 2024-08-05 2024-11-08 华侨大学 一种基于多液压蓄能器势能回收的辅助驱动系统和叉车

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US8718845B2 (en) 2010-10-06 2014-05-06 Caterpillar Global Mining Llc Energy management system for heavy equipment
US9190852B2 (en) 2012-09-21 2015-11-17 Caterpillar Global Mining Llc Systems and methods for stabilizing power rate of change within generator based applications

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WO2000000748A1 (en) 2000-01-06
AU4943699A (en) 2000-01-17
EP1092097B1 (de) 2004-09-22
US6584769B1 (en) 2003-07-01
KR20010071622A (ko) 2001-07-28
JP2002519597A (ja) 2002-07-02
DE69920452T2 (de) 2005-11-10

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