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FR2918684B1 - HYDRAULIC CONTROL CIRCUIT OF A DOUBLE-EFFECTIVE LIFTING JACK - Google Patents

HYDRAULIC CONTROL CIRCUIT OF A DOUBLE-EFFECTIVE LIFTING JACK

Info

Publication number
FR2918684B1
FR2918684B1 FR0704986A FR0704986A FR2918684B1 FR 2918684 B1 FR2918684 B1 FR 2918684B1 FR 0704986 A FR0704986 A FR 0704986A FR 0704986 A FR0704986 A FR 0704986A FR 2918684 B1 FR2918684 B1 FR 2918684B1
Authority
FR
France
Prior art keywords
double
control circuit
hydraulic control
lifting jack
effective lifting
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.)
Active
Application number
FR0704986A
Other languages
French (fr)
Other versions
FR2918684A1 (en
Inventor
Loic Mailleux
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.)
ETUDE ET D INNOVATION DANS LE MATERIEL AGRICOLE SOC D
Original Assignee
ETUDE ET D INNOVATION DANS LE MATERIEL AGRICOLE SOC D
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 ETUDE ET D INNOVATION DANS LE MATERIEL AGRICOLE SOC D filed Critical ETUDE ET D INNOVATION DANS LE MATERIEL AGRICOLE SOC D
Priority to FR0704986A priority Critical patent/FR2918684B1/en
Publication of FR2918684A1 publication Critical patent/FR2918684A1/en
Application granted granted Critical
Publication of FR2918684B1 publication Critical patent/FR2918684B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • 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
    • 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
    • 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
    • F15B21/008—Reduction of noise or vibration
    • 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
    • F15B2211/80—Other types of control related to particular problems or conditions
    • F15B2211/86—Control during or prevention of abnormal conditions
    • F15B2211/8613—Control during or prevention of abnormal conditions the abnormal condition being oscillations

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Fluid-Pressure Circuits (AREA)
FR0704986A 2007-07-10 2007-07-10 HYDRAULIC CONTROL CIRCUIT OF A DOUBLE-EFFECTIVE LIFTING JACK Active FR2918684B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR0704986A FR2918684B1 (en) 2007-07-10 2007-07-10 HYDRAULIC CONTROL CIRCUIT OF A DOUBLE-EFFECTIVE LIFTING JACK

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0704986A FR2918684B1 (en) 2007-07-10 2007-07-10 HYDRAULIC CONTROL CIRCUIT OF A DOUBLE-EFFECTIVE LIFTING JACK

Publications (2)

Publication Number Publication Date
FR2918684A1 FR2918684A1 (en) 2009-01-16
FR2918684B1 true FR2918684B1 (en) 2012-08-03

Family

ID=38988097

Family Applications (1)

Application Number Title Priority Date Filing Date
FR0704986A Active FR2918684B1 (en) 2007-07-10 2007-07-10 HYDRAULIC CONTROL CIRCUIT OF A DOUBLE-EFFECTIVE LIFTING JACK

Country Status (1)

Country Link
FR (1) FR2918684B1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2952139B1 (en) * 2009-10-30 2011-12-09 Mailleux CONTROL CIRCUIT FOR A HYDRAULIC ACTUATOR AND MACHINE EQUIPPED WITH SUCH CIRCUIT.
US20120251283A1 (en) * 2009-12-17 2012-10-04 Volvo Compact Equipment Sas Construction equipment machine with improved boom suspension
WO2019210341A1 (en) 2018-05-04 2019-11-07 Palfinger Ag Hydraulic system
IT202000018778A1 (en) * 2020-07-31 2022-01-31 Cnh Ind Italia Spa METHOD AND SYSTEM FOR IMPLEMENTING AN ARM OF A WORK VEHICLE

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3122246A (en) * 1960-11-09 1964-02-25 Caterpillar Tractor Co Hydraulic circuit for tractor mounted loaders
DE19913784A1 (en) * 1999-03-26 2000-09-28 Mannesmann Rexroth Ag Load-sensing hydraulic control arrangement for a mobile machine
US6357230B1 (en) * 1999-12-16 2002-03-19 Caterpillar Inc. Hydraulic ride control system
ATE382579T1 (en) * 2004-11-12 2008-01-15 Parker Hannifin Aktiebolag LEVEL REGULATION
EP1733996B1 (en) * 2005-06-15 2009-03-11 Bosch Rexroth Oil Control S.p.A. A hydraulic apparatus for raising and lowering an arm hinged to a work vehicle
ITTO20050629A1 (en) * 2005-09-15 2007-03-16 Cnh Italia Spa HYDRAULIC ARRANGEMENT FOR A RAISED LIFTING ARM WITH A VEHICLE

Also Published As

Publication number Publication date
FR2918684A1 (en) 2009-01-16

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