IT1280604B1 - Gruppo di potenza per l'alimentazione di attuatori idraulici - Google Patents

Gruppo di potenza per l'alimentazione di attuatori idraulici

Info

Publication number
IT1280604B1
IT1280604B1 IT95VI000172A ITVI950172A IT1280604B1 IT 1280604 B1 IT1280604 B1 IT 1280604B1 IT 95VI000172 A IT95VI000172 A IT 95VI000172A IT VI950172 A ITVI950172 A IT VI950172A IT 1280604 B1 IT1280604 B1 IT 1280604B1
Authority
IT
Italy
Prior art keywords
power
hydraulic actuators
power supply
group
power group
Prior art date
Application number
IT95VI000172A
Other languages
English (en)
Inventor
Adolfo Pace
Original Assignee
Sme Elettronica Spa
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 Sme Elettronica Spa filed Critical Sme Elettronica Spa
Priority to IT95VI000172A priority Critical patent/IT1280604B1/it
Publication of ITVI950172A0 publication Critical patent/ITVI950172A0/it
Priority to EP96117401A priority patent/EP0777055A3/en
Publication of ITVI950172A1 publication Critical patent/ITVI950172A1/it
Priority to US08/936,682 priority patent/US6005360A/en
Application granted granted Critical
Publication of IT1280604B1 publication Critical patent/IT1280604B1/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
    • 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
    • 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
    • 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 actuating force of an 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
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/205—Systems with pumps
    • F15B2211/20507—Type of prime mover
    • F15B2211/20515—Electric motor
    • 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
    • F15B2211/20569—Type of pump capable of working as pump and motor
    • 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
    • F15B2211/405—Flow control characterised by the type of flow control means or valve
    • F15B2211/40515—Flow control characterised by the type of flow control means or valve with variable throttles or orifices
    • 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
    • F15B2211/415—Flow control characterised by the connections of the flow control means in the circuit
    • F15B2211/41554—Flow control characterised by the connections of the flow control means in the circuit being connected to a return line and a directional control valve
    • 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
    • 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
    • F15B2211/5156—Pressure control characterised by the connections of the pressure control means in the circuit being connected to a return line and a directional control valve
    • 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
    • F15B2211/63—Electronic controllers
    • F15B2211/6303—Electronic controllers using input signals
    • F15B2211/6333—Electronic controllers using input signals representing a state of the pressure source, e.g. swash plate angle
    • 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
    • F15B2211/63—Electronic controllers
    • F15B2211/6303—Electronic controllers using input signals
    • F15B2211/6346—Electronic controllers using input signals representing a state of input means, e.g. joystick position
    • 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
    • F15B2211/705—Output members, e.g. hydraulic motors or cylinders or control therefor characterised by the type of output members or actuators
    • F15B2211/7051—Linear output members
    • F15B2211/7052—Single-acting 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
    • F15B2211/80—Other types of control related to particular problems or conditions
    • F15B2211/88—Control measures for saving energy

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Transportation (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Combustion & Propulsion (AREA)
  • Analytical Chemistry (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Forklifts And Lifting Vehicles (AREA)
IT95VI000172A 1995-11-02 1995-11-02 Gruppo di potenza per l'alimentazione di attuatori idraulici IT1280604B1 (it)

Priority Applications (3)

Application Number Priority Date Filing Date Title
IT95VI000172A IT1280604B1 (it) 1995-11-02 1995-11-02 Gruppo di potenza per l'alimentazione di attuatori idraulici
EP96117401A EP0777055A3 (en) 1995-11-02 1996-10-30 A power unit for the supply of hydraulic actuators
US08/936,682 US6005360A (en) 1995-11-02 1997-09-24 Power unit for the supply of hydraulic actuators

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT95VI000172A IT1280604B1 (it) 1995-11-02 1995-11-02 Gruppo di potenza per l'alimentazione di attuatori idraulici
US08/936,682 US6005360A (en) 1995-11-02 1997-09-24 Power unit for the supply of hydraulic actuators

Publications (3)

Publication Number Publication Date
ITVI950172A0 ITVI950172A0 (it) 1995-11-02
ITVI950172A1 ITVI950172A1 (it) 1997-05-02
IT1280604B1 true IT1280604B1 (it) 1998-01-23

Family

ID=26332599

Family Applications (1)

Application Number Title Priority Date Filing Date
IT95VI000172A IT1280604B1 (it) 1995-11-02 1995-11-02 Gruppo di potenza per l'alimentazione di attuatori idraulici

Country Status (3)

Country Link
US (1) US6005360A (it)
EP (1) EP0777055A3 (it)
IT (1) IT1280604B1 (it)

Families Citing this family (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1283752B1 (it) * 1996-04-19 1998-04-30 Fiat Om Carrelli Elevatori Sistema di sollevamemto ed abbassamento del supporto del carico di un carrello elevatore elettrico.
DE19744429A1 (de) * 1997-10-08 1999-04-22 Still Wagner Gmbh & Co Kg Flurförderfahrzeug mit einer Lastaufnahmevorrichtung und Verfahren zum Absenken der Lastaufnahmevorrichtung
US6126401A (en) * 1998-08-12 2000-10-03 Computer Graphics Systems Development Corporation Hybrid electric/hydraulic drive system
JP2000136806A (ja) * 1998-11-04 2000-05-16 Komatsu Ltd 圧油のエネルギー回収装置および圧油のエネルギー回収・再生装置
US6652239B2 (en) * 2001-03-29 2003-11-25 Kadant Inc. Motor controller for a hydraulic pump with electrical regeneration
JP2004011168A (ja) * 2002-06-04 2004-01-15 Komatsu Ltd 建設機械
SE525159C2 (sv) * 2002-06-05 2004-12-14 Bt Ind Ab Förfarande för att styra sänkningsrörelsen för en trucks luftcylinder
US6945039B2 (en) * 2003-11-14 2005-09-20 Caterpillar Inc. Power system and work machine using same
US7401464B2 (en) * 2003-11-14 2008-07-22 Caterpillar Inc. Energy regeneration system for machines
US20060090462A1 (en) * 2003-11-14 2006-05-04 Kazunori Yoshino Energy regeneration system for working machinery
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
DE102005052108A1 (de) * 2005-11-02 2007-05-03 Hydac Technology Gmbh Hydraulikanlage
AU2007360945B2 (en) * 2007-11-09 2012-02-23 Moog Inc. Electro-hydraulic actuator for controlling the pitch of a blade of a wind turbine
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
US7908852B2 (en) * 2008-02-28 2011-03-22 Caterpillar Inc. Control system for recovering swing motor kinetic energy
US7980073B2 (en) * 2008-05-08 2011-07-19 Caterpillar Inc. Hybrid system for a powertrain and hydraulic system
NL1035933C (en) 2008-09-15 2010-03-16 Stertil Bv System, lifting column and method for energy-efficient lifting and lowering a load.
US20110056194A1 (en) * 2009-09-10 2011-03-10 Bucyrus International, Inc. Hydraulic system for heavy equipment
US20110056192A1 (en) * 2009-09-10 2011-03-10 Robert Weber Technique for controlling pumps in a hydraulic system
US8362629B2 (en) * 2010-03-23 2013-01-29 Bucyrus International Inc. Energy management system for heavy equipment
US8626403B2 (en) 2010-10-06 2014-01-07 Caterpillar Global Mining Llc Energy management and storage system
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
US9422141B2 (en) 2010-10-22 2016-08-23 Tld Canada Inc. System and method for managing a current flow in a lift machine
JP2014524549A (ja) 2011-08-12 2014-09-22 イートン コーポレーション 慣性エネルギーを回生するための方法及び装置
JP6084972B2 (ja) 2011-08-12 2017-02-22 イートン コーポレーションＥａｔｏｎ Ｃｏｒｐｏｒａｔｉｏｎ エネルギを回収し、油圧システムにかかる負荷を平準化するためのシステム及び方法
CN104254693A (zh) * 2012-03-30 2014-12-31 鲁卡斯液压有限公司 用于运行液压泵设备的方法以及液压泵设备
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
JP6320417B2 (ja) 2012-12-19 2018-05-09 イートン コーポレーションＥａｔｏｎ Ｃｏｒｐｏｒａｔｉｏｎ エネルギを回収し、油圧システムにかかる負荷を平準化するための油圧システム用制御システム及び方法
GB2529909B (en) 2014-09-30 2016-11-23 Artemis Intelligent Power Ltd Industrial system with synthetically commutated variable displacement fluid working machine
DE102017106390A1 (de) * 2017-03-24 2018-09-27 Still Gmbh Verfahren zum Betrieb einer Hydraulikanlage eines Flurförderzeugs
CN108975235B (zh) * 2017-05-31 2020-11-06 北谷电子有限公司 升降装置动力系统及其控制方法
WO2021112728A1 (en) * 2019-12-05 2021-06-10 Saab Ab A self-contained electro-hydraulic linear actuator and a method for controlling the actuator
CA3164505A1 (en) 2021-12-06 2023-06-06 Danfoss Power Solutions (Jiangsu) Co., Ltd. Lifting mechanism
CN116221199B (zh) 2021-12-06 2026-04-07 丹佛斯动力系统（江苏）有限公司 升降机构
GB2625568A (en) * 2022-12-20 2024-06-26 Hyva Holding Bv A hydraulic cylinder assembly

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Publication number Priority date Publication date Assignee Title
SE437861B (sv) * 1983-02-03 1985-03-18 Goran Palmers Anordning vid medelst hydraul-cylinder drivna maskiner med en av en drivkella via en energiackumulatordriven pump
US4702076A (en) * 1984-01-13 1987-10-27 Dynamic Hydraulic Systems, Inc. Hydraulically operated clam-shell device
JPH0780644B2 (ja) * 1990-03-16 1995-08-30 株式会社日立製作所 油圧エレベーター
JP2628397B2 (ja) * 1990-04-25 1997-07-09 回生工業株式会社 インバータ電源を用いた油圧エレベータの速度制御方法
JP2877257B2 (ja) * 1991-02-05 1999-03-31 三菱重工業株式会社 作業機械の制御装置
DE4317782C2 (de) * 1993-05-28 1996-01-18 Jungheinrich Ag Hydraulische Hubvorrichtung für batteriegetriebene Flurförderzeuge oder dergleichen
DE4402653C2 (de) * 1994-01-29 1997-01-30 Jungheinrich Ag Hydraulische Hubvorrichtung für batteriebetriebene Flurförderzeuge
US5499694A (en) * 1994-08-15 1996-03-19 Stewart & Stevenson Power, Inc. Self propelled passenger lift vehicle

Also Published As

Publication number Publication date
EP0777055A2 (en) 1997-06-04
ITVI950172A0 (it) 1995-11-02
US6005360A (en) 1999-12-21
EP0777055A3 (en) 1998-12-16
ITVI950172A1 (it) 1997-05-02

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Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19981023