SE0300395D0 - damping device - Google Patents

damping device

Info

Publication number
SE0300395D0
SE0300395D0 SE0300395A SE0300395A SE0300395D0 SE 0300395 D0 SE0300395 D0 SE 0300395D0 SE 0300395 A SE0300395 A SE 0300395A SE 0300395 A SE0300395 A SE 0300395A SE 0300395 D0 SE0300395 D0 SE 0300395D0
Authority
SE
Sweden
Prior art keywords
damping device
accumulator
hydraulic cylinder
hydraulic
hydraulic system
Prior art date
Application number
SE0300395A
Other languages
Swedish (sv)
Other versions
SE0300395L (en
SE524812C2 (en
Inventor
Einar Karlsson
Original Assignee
Hultdin System 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=20290399&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=SE0300395(D0) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Hultdin System Ab filed Critical Hultdin System Ab
Priority to SE0300395A priority Critical patent/SE524812C2/en
Publication of SE0300395D0 publication Critical patent/SE0300395D0/en
Priority to PCT/SE2004/000147 priority patent/WO2004071929A1/en
Priority to EP04708534A priority patent/EP1592638B1/en
Publication of SE0300395L publication Critical patent/SE0300395L/en
Publication of SE524812C2 publication Critical patent/SE524812C2/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C13/00—Other constructional features or details
    • B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
    • B66C13/06—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for minimising or preventing longitudinal or transverse swinging of loads
    • 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
    • E02F9/2203—Arrangements for controlling the attitude of actuators, e.g. speed, floating function
    • E02F9/2207—Arrangements for controlling the attitude of actuators, e.g. speed, floating function for reducing or compensating oscillations
    • 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
    • F15B1/021—Installations or systems with accumulators used for damping

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Operation Control Of Excavators (AREA)

Abstract

Damping device (5) for a hydraulic system of a working machine, for damping pressure oscillations in the hydraulic system including a hydraulic cylinder (1), said damping device having a first accumulator (6), having a first preloading pressure P1, and a second accumulator (7), having a second preloading pressure Per wherein P1<P2, said accumulators being in hydraulic connection with the hydraulic cylinder. According to the invention, the first accumulator is connected to the hydraulic cylinder via a first throttle valve (8), which has a flow opening having a flow area A1, and the second accumulator is connected to the hydraulic cylinder via a second throttle valve (9), which has a flow opening having a flow area A2, wherein A1>A2. The invention also relates to a hydraulic system including such a damping device.
SE0300395A 2003-02-14 2003-02-14 Damping device of a hydraulic system of a working machine and hydraulic system comprising a damping device SE524812C2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SE0300395A SE524812C2 (en) 2003-02-14 2003-02-14 Damping device of a hydraulic system of a working machine and hydraulic system comprising a damping device
PCT/SE2004/000147 WO2004071929A1 (en) 2003-02-14 2004-02-05 Damping device
EP04708534A EP1592638B1 (en) 2003-02-14 2004-02-05 Damping device for a hydraulic circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE0300395A SE524812C2 (en) 2003-02-14 2003-02-14 Damping device of a hydraulic system of a working machine and hydraulic system comprising a damping device

Publications (3)

Publication Number Publication Date
SE0300395D0 true SE0300395D0 (en) 2003-02-14
SE0300395L SE0300395L (en) 2004-08-15
SE524812C2 SE524812C2 (en) 2004-10-05

Family

ID=20290399

Family Applications (1)

Application Number Title Priority Date Filing Date
SE0300395A SE524812C2 (en) 2003-02-14 2003-02-14 Damping device of a hydraulic system of a working machine and hydraulic system comprising a damping device

Country Status (3)

Country Link
EP (1) EP1592638B1 (en)
SE (1) SE524812C2 (en)
WO (1) WO2004071929A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006003768A1 (en) * 2006-01-25 2007-07-26 Wilhelm Stoll Maschinenfabrik Gmbh Front loader especially for tractor, has switch-off valve for supplying flow of hydraulic medium to tool for upward slewing of scoop
EP1903217A1 (en) * 2006-09-22 2008-03-26 SAIP s.r.l. Hydropneumatic damper for damping pressure pulsations in fluid pumping plants
DE102009016571A1 (en) * 2009-04-06 2010-10-07 Agco Gmbh Hydraulic control arrangement
DE102011004211A1 (en) * 2011-02-16 2012-08-16 Hilti Aktiengesellschaft Drill support for a hammer drill
CN103395692B (en) * 2013-08-12 2015-06-10 四川宏华石油设备有限公司 Anti-swing device of clamping module
CN104514236A (en) * 2013-10-01 2015-04-15 迪尔公司 Front loader assembly
GB201904054D0 (en) 2019-03-25 2019-05-08 Mhwirth Gmbh Pump and associated system and methods

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2638932A (en) 1948-04-10 1953-05-19 George E Failing Supply Compan Pressure equalizer
DE2910434C3 (en) 1979-03-15 1982-01-21 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Device for the end position damping of a piston in hydraulically operated lifting machines or feed devices
WO1990005814A1 (en) * 1988-11-23 1990-05-31 A & T Hansson Konsult Ab Shock absorbing device for a mobile machine
DE4216780C2 (en) * 1992-05-21 1995-02-09 Orenstein & Koppel Ag Device for lifting and lowering a boom of a mobile construction machine provided with a pivotable shovel
WO1997013072A2 (en) * 1995-09-29 1997-04-10 Beringer Hydraulik Ag Pressure vibration damping in hydraulic systems
SE9503860D0 (en) * 1995-11-01 1995-11-01 Alf Wincent Arrangements for improved damping and adjustable floating position on loaders
AU1043697A (en) * 1996-10-21 1998-05-15 Ab Alo-Maskiner Vibration dampening apparatus for mobile machines
DE10127486A1 (en) * 2001-06-07 2002-12-12 Claas Selbstfahr Erntemasch Relief device for a lifting device

Also Published As

Publication number Publication date
WO2004071929A8 (en) 2005-01-13
WO2004071929A1 (en) 2004-08-26
SE0300395L (en) 2004-08-15
SE524812C2 (en) 2004-10-05
EP1592638B1 (en) 2012-11-07
EP1592638A1 (en) 2005-11-09

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Legal Events

Date Code Title Description
NUG Patent has lapsed