EP2463528A3 - Valve unit - Google Patents

Valve unit Download PDF

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Publication number
EP2463528A3
EP2463528A3 EP11008999.2A EP11008999A EP2463528A3 EP 2463528 A3 EP2463528 A3 EP 2463528A3 EP 11008999 A EP11008999 A EP 11008999A EP 2463528 A3 EP2463528 A3 EP 2463528A3
Authority
EP
European Patent Office
Prior art keywords
valves
valve unit
relates
adjusting means
valve
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.)
Granted
Application number
EP11008999.2A
Other languages
German (de)
French (fr)
Other versions
EP2463528A2 (en
EP2463528B1 (en
Inventor
Simon Meier
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.)
Liebherr Hydraulikbagger GmbH
Original Assignee
Liebherr Hydraulikbagger 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 Liebherr Hydraulikbagger GmbH filed Critical Liebherr Hydraulikbagger GmbH
Publication of EP2463528A2 publication Critical patent/EP2463528A2/en
Publication of EP2463528A3 publication Critical patent/EP2463528A3/en
Application granted granted Critical
Publication of EP2463528B1 publication Critical patent/EP2463528B1/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
    • F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
    • F15B1/02—Installations or systems with accumulators
    • F15B1/027—Installations or systems with accumulators having accumulator charging devices
    • F15B1/0275—Installations or systems with accumulators having accumulator charging devices with two or more pilot valves, e.g. for independent setting of the cut-in and cut-out pressures
    • 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
    • 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
    • F15B2211/3138—Directional control characterised by the positions of the valve element the positions being discrete
    • 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
    • F15B2211/5151—Pressure control characterised by the connections of the pressure control means in the circuit being connected to a pressure source 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
    • F15B2211/50—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
    • F15B2211/625—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
    • F15B2211/60—Circuit components or control therefor
    • F15B2211/63—Electronic controllers
    • F15B2211/6303—Electronic controllers using input signals
    • F15B2211/6306—Electronic controllers using input signals representing a pressure
    • F15B2211/6313—Electronic controllers using input signals representing a pressure the pressure being a load pressure
    • 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
    • F15B2211/665—Methods of control using electronic components
    • 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
    • F15B2211/665—Methods of control using electronic components
    • F15B2211/6653—Pressure control

Landscapes

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

Abstract

Die vorliegende Erfindung betrifft eine Ventileinheit (100) für eine Hydraulikanordnung mit wenigstens drei Ventilen (140,150,160) und mit wenigstens einem Stellmittel (X), wobei die Ventile und das Stellmittel mittelbar und/oder unmittelbar miteinander verbindbar und/oder verbunden sind, wobei in wenigstens einem Betriebszustand stromabwärts eines ersten Ventils (140) die beiden weiteren Ventile (150,160) parallel angeordnet sind und wobei mittels des Stellmittels wenigstens ein Stellsignal (X) an wenigstens eines der Ventile (140,150,160) übermittelbar ist. Des Weiteren betrifft die Erfindung eine Hydraulikanordnung sowie ein Baufahrzeug.

Figure imgaf001
The present invention relates to a valve unit (100) for a hydraulic arrangement with at least three valves (140, 150, 160) and with at least one adjusting means (X), wherein the valves and the adjusting means are indirectly and / or directly connectable and / or connected, wherein in at least an operating state downstream of a first valve (140) the two further valves (150,160) are arranged in parallel and wherein by means of the actuating means at least one control signal (X) to at least one of the valves (140,150,160) can be transmitted. Furthermore, the invention relates to a hydraulic system and a construction vehicle.
Figure imgaf001
EP11008999.2A 2010-12-09 2011-11-11 Hydraulic assembly with valve unit Active EP2463528B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102010053975A DE102010053975A1 (en) 2010-12-09 2010-12-09 valve unit

Publications (3)

Publication Number Publication Date
EP2463528A2 EP2463528A2 (en) 2012-06-13
EP2463528A3 true EP2463528A3 (en) 2014-04-09
EP2463528B1 EP2463528B1 (en) 2018-10-10

Family

ID=44992495

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11008999.2A Active EP2463528B1 (en) 2010-12-09 2011-11-11 Hydraulic assembly with valve unit

Country Status (2)

Country Link
EP (1) EP2463528B1 (en)
DE (1) DE102010053975A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016213318A1 (en) * 2016-07-21 2018-01-25 Schaeffler Technologies AG & Co. KG A method for maintaining a pressure level of a hydraulic fluid in a hydraulic actuator assembly

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2052892A1 (en) * 1970-10-28 1972-05-10 F Hydraulikzubehoer Mbh Ges Storage tank for hydraulic systems
DE4112065A1 (en) * 1991-04-12 1992-10-22 Rexroth Mannesmann Gmbh Pilot valve with adjustable switch pressure differential - has connection between pressure valve and servo control space
DE102008040054A1 (en) * 2008-07-01 2010-01-07 Zf Friedrichshafen Ag Vehicle hydraulic system has an oil tank with a gas content in a pressure balance with the oil content, controlled according to temperature

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10062625A1 (en) * 2000-02-26 2001-10-11 Wabco Gmbh & Co Ohg Brake pressure modulator for electronic brake systems

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2052892A1 (en) * 1970-10-28 1972-05-10 F Hydraulikzubehoer Mbh Ges Storage tank for hydraulic systems
DE4112065A1 (en) * 1991-04-12 1992-10-22 Rexroth Mannesmann Gmbh Pilot valve with adjustable switch pressure differential - has connection between pressure valve and servo control space
DE102008040054A1 (en) * 2008-07-01 2010-01-07 Zf Friedrichshafen Ag Vehicle hydraulic system has an oil tank with a gas content in a pressure balance with the oil content, controlled according to temperature

Also Published As

Publication number Publication date
DE102010053975A1 (en) 2012-06-14
EP2463528A2 (en) 2012-06-13
EP2463528B1 (en) 2018-10-10

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