EP3625457C0 - Control device for supplying at least one hydraulic consumer with fluid - Google Patents

Control device for supplying at least one hydraulic consumer with fluid

Info

Publication number
EP3625457C0
EP3625457C0 EP18722442.3A EP18722442A EP3625457C0 EP 3625457 C0 EP3625457 C0 EP 3625457C0 EP 18722442 A EP18722442 A EP 18722442A EP 3625457 C0 EP3625457 C0 EP 3625457C0
Authority
EP
European Patent Office
Prior art keywords
supplying
fluid
control device
hydraulic consumer
consumer
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
EP18722442.3A
Other languages
German (de)
French (fr)
Other versions
EP3625457A1 (en
EP3625457B1 (en
Inventor
Heinz-Peter Huth
Marc Anton
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.)
Hydac Systems and Services GmbH
Original Assignee
Hydac Systems and Services GmbH
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 Hydac Systems and Services GmbH filed Critical Hydac Systems and Services GmbH
Publication of EP3625457A1 publication Critical patent/EP3625457A1/en
Application granted granted Critical
Publication of EP3625457B1 publication Critical patent/EP3625457B1/en
Publication of EP3625457C0 publication Critical patent/EP3625457C0/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F15B11/161—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors with sensing of servomotor demand or load
    • F15B11/165—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors with sensing of servomotor demand or load for adjusting the pump output or bypass in response to demand
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/002—Hydraulic systems to change the pump delivery
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/10—Other safety measures
    • F04B49/106—Responsive to pumped volume
    • 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
    • F15B2211/20538—Type of pump constant 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
    • F15B2211/20546—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
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/265—Control of multiple pressure sources
    • F15B2211/2654—Control of multiple pressure sources one or more pressure sources having priority
    • 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
    • F15B2211/40—Flow control
    • F15B2211/45—Control of bleed-off flow, e.g. control of bypass flow to the return line

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Fluid-Pressure Circuits (AREA)
EP18722442.3A 2017-05-15 2018-04-27 Control device for supplying at least one hydraulic consumer with fluid Active EP3625457B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017004634.4A DE102017004634A1 (en) 2017-05-15 2017-05-15 Control device for supplying at least one hydraulic consumer
PCT/EP2018/060866 WO2018210550A1 (en) 2017-05-15 2018-04-27 Control apparatus for supplying at least one hydraulic consumer with fluid

Publications (3)

Publication Number Publication Date
EP3625457A1 EP3625457A1 (en) 2020-03-25
EP3625457B1 EP3625457B1 (en) 2023-12-06
EP3625457C0 true EP3625457C0 (en) 2023-12-06

Family

ID=62116405

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18722442.3A Active EP3625457B1 (en) 2017-05-15 2018-04-27 Control device for supplying at least one hydraulic consumer with fluid

Country Status (6)

Country Link
US (1) US11168710B2 (en)
EP (1) EP3625457B1 (en)
JP (1) JP7130662B2 (en)
CN (1) CN211448991U (en)
DE (1) DE102017004634A1 (en)
WO (1) WO2018210550A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3633188B1 (en) * 2018-10-02 2021-07-14 Siemens Gamesa Renewable Energy A/S Variable flow hydraulic circuit for a wind turbine
DE102021130272A1 (en) * 2021-11-19 2023-05-25 Still Gesellschaft Mit Beschränkter Haftung Hydraulic system for an industrial truck

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4129508C2 (en) 1991-09-05 1994-12-15 Rexroth Mannesmann Gmbh Valve arrangement for supplying a consumer from two pressure medium sources
JPH10266274A (en) * 1997-03-27 1998-10-06 Hitachi Constr Mach Co Ltd Hydraulic circuit device of construction machine
JPH11115780A (en) * 1997-10-15 1999-04-27 Komatsu Ltd Displacement control method of steering pump for work vehicle and its device
DE19906689A1 (en) * 1999-02-18 2000-08-24 Krupp Foerdertechnik Gmbh Hydraulic drive for dredger has all hydraulic pumps mounted on common shaft that is directly driven by motor, two mutually independent hydraulic circuits
US6901754B2 (en) * 2003-10-01 2005-06-07 Husco International, Inc. Power conserving hydraulic pump bypass compensator circuit
JP2013044398A (en) 2011-08-24 2013-03-04 Komatsu Ltd Hydraulic drive system
GB201209109D0 (en) * 2012-05-24 2012-07-04 Agco Int Gmbh Pilot pressure supply system
DE102012209142A1 (en) 2012-05-31 2013-12-05 Putzmeister Engineering Gmbh hydraulic system
DE102012011400A1 (en) * 2012-06-08 2013-12-12 Hydac System Gmbh Hydraulic system for safe pressure supply of at least one consumer
DE102014004932B3 (en) 2014-04-05 2015-05-13 Hydac Fluidtechnik Gmbh circuitry

Also Published As

Publication number Publication date
US20200095987A1 (en) 2020-03-26
EP3625457A1 (en) 2020-03-25
JP2020519815A (en) 2020-07-02
US11168710B2 (en) 2021-11-09
WO2018210550A1 (en) 2018-11-22
CN211448991U (en) 2020-09-08
DE102017004634A1 (en) 2018-11-15
EP3625457B1 (en) 2023-12-06
JP7130662B2 (en) 2022-09-05

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