EP1664548B1 - Systeme modulaire - Google Patents

Systeme modulaire Download PDF

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Publication number
EP1664548B1
EP1664548B1 EP04764541A EP04764541A EP1664548B1 EP 1664548 B1 EP1664548 B1 EP 1664548B1 EP 04764541 A EP04764541 A EP 04764541A EP 04764541 A EP04764541 A EP 04764541A EP 1664548 B1 EP1664548 B1 EP 1664548B1
Authority
EP
European Patent Office
Prior art keywords
components
group
hydraulic
modular system
additional
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.)
Expired - Lifetime
Application number
EP04764541A
Other languages
German (de)
English (en)
Other versions
EP1664548A1 (fr
Inventor
Jens Laurvig Haugaard
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 Accessories GmbH
Original Assignee
Hydac Accessories 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 Accessories GmbH filed Critical Hydac Accessories GmbH
Publication of EP1664548A1 publication Critical patent/EP1664548A1/fr
Application granted granted Critical
Publication of EP1664548B1 publication Critical patent/EP1664548B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
    • F15B13/08—Assemblies of units, each for the control of a single servomotor only
    • F15B13/0803—Modular units
    • F15B13/0807—Manifolds
    • 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
    • F15B1/26—Supply reservoir or sump assemblies
    • 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
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
    • F15B13/08—Assemblies of units, each for the control of a single servomotor only
    • F15B13/0803—Modular units
    • F15B13/0821—Attachment or sealing of modular units to each other
    • 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
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
    • F15B13/08—Assemblies of units, each for the control of a single servomotor only
    • F15B13/0803—Modular units
    • F15B13/0832—Modular valves
    • F15B13/0835—Cartridge type 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
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
    • F15B13/08—Assemblies of units, each for the control of a single servomotor only
    • F15B13/0803—Modular units
    • F15B13/0846—Electrical details
    • F15B13/0857—Electrical connecting means, e.g. plugs, sockets
    • 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
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
    • F15B13/08—Assemblies of units, each for the control of a single servomotor only
    • F15B13/0803—Modular units
    • F15B13/0846—Electrical details
    • F15B13/086—Sensing means, e.g. pressure sensors
    • 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
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
    • F15B13/08—Assemblies of units, each for the control of a single servomotor only
    • F15B13/0803—Modular units
    • F15B13/0878—Assembly of modular units
    • F15B13/0885—Assembly of modular units using valves combined with other components
    • F15B13/0892—Valves combined with fluid 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
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
    • F15B13/08—Assemblies of units, each for the control of a single servomotor only
    • F15B13/0803—Modular units
    • F15B13/0878—Assembly of modular units
    • F15B13/0896—Assembly of modular units using different types or sizes of 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
    • F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
    • F15B21/003—Systems with different interchangeable components, e.g. using preassembled kits
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/877—With flow control means for branched passages
    • Y10T137/87885—Sectional block structure

Definitions

  • the invention relates to a modular system having at least one main valve block, with at least two groups of connecting lines, which are all fluidly connected to one another via a connecting line of a group according to the feature configuration of the preamble of claim 1.
  • DE-OS 27 50 035 is a hydraulic kit known consisting of small height and vidverkettbaren hydraulic elements with pressure and / or quantity-changing or controlling or controlling functions and a basic block, the connection pattern of the elements and the basic block is point-symmetrical and formed by two terminal holes and two mounting holes and further wherein the elements and the base block are arranged in a predetermined assignment and / or sequence and about the longitudinal axis rotated by 180 ° to each other. In this way, a space-saving construction results for the said hydraulic elements which can be linked together.
  • EP 0 854 982 B1 is a modular main valve block known from a pilot operated seat and / or piston valves having valve system having both a standardized port interface and a pilot valve interface for receiving a pilot valve and a pump, a tank, a first working line, a second working line, a first control line and a second control line and in which four valve receptacles are arranged for receiving a respective valve unit.
  • the pertinent solution has proved to be particularly suitable for the cartridge technology, in which suitable for the particular application valve units (cartridges) are attached to the main valve block.
  • a pressure or hydraulic tank is provided in which a hydraulic means stored and can be acted upon with pressure, wherein formed as a carrier housing all components of the hydraulic system are attachable such that they form a completely mountable mounting unit.
  • a hydraulic fluid pump which promotes the hydraulic fluid from the pressure tank or in the pressure tank, further comprising an electric motor is provided for driving the hydraulic fluid pump and a control unit which includes a controller for actuating the electric motor.
  • a pressure accumulator which stores pressure in the form of potential energy and pressurizes the hydraulic fluid of the pressure tank and the pump module in the interior of the pressure tank and the other modules attached to the outside of the pressure tank.
  • the known valve block solution via two groups of connecting lines, which are connected at least one point via a connecting line of a group all fluid carrying together, wherein at least two further connecting lines of this one group each with an assignable connecting line of are connected to another group and wherein for the use of predeterminable valve components in the form of standard valve inserts of the same type at least three placeholders are connected in the connecting line of the other group.
  • the invention has the object to further improve the known solutions to the effect that a modular system is created, which can be implemented inexpensively and in a space-saving manner that is reliable in use and that the increased demands on the Complexity of possible tasks for a pertinent overall hydraulic system.
  • a pertinent task solves a modular system with the features of claim 1 in its entirety.
  • At least one placeholder remains unoccupied by a valve component or blocks the respective fluid-carrying path of one or more connecting lines of one or the other group or forms a fluid-carrying path between connecting lines of the other group. While the other placeholders are accordingly loaded with valve components, the vacant spaceholder permits a meaningful fluid control within the main valve block as a function of the system task.
  • the main valve block on the outer peripheral side connection points for selectively or partially common connection of other components such as manometers, hydraulic pumps, radiator and / or filter units, hydraulic accumulator, other valve components, hydraulic tanks, electrical and electronic control components including sensors and solenoids, as well as at least one intermediate or secondary terminal block.
  • other components such as manometers, hydraulic pumps, radiator and / or filter units, hydraulic accumulator, other valve components, hydraulic tanks, electrical and electronic control components including sensors and solenoids, as well as at least one intermediate or secondary terminal block.
  • the intermediate or secondary connection block is provided with additional placeholders, such as pressure relief valves, check valves, controllable switching valves, etc. can be used as a valve component for the placeholder whose selection is based primarily on the respective system task.
  • the respective hydraulic tank is constructed as a module and selectable from a plurality of hydraulic tanks, which have said connection points for complementation with the other components of the kit and the selectable in predetermined levels tank volumes have. It has proven to be particularly advantageous to provide the hydraulic tanks in the sizes 25, 50, 100, 150 and 200 liters and the hydraulic tanks are designed so that they fit into one another and at the same time to half EURO pallet for transport purposes.
  • the modular system concept allows for a complete delivery of system components, in particular hydraulic tank, hydraulic pump and associated electric motor, valve blocks with pressure, directional and flow valves with inclusion of filter units, hydraulic accumulators, oil, air coolers and accessories.
  • system components in particular hydraulic tank, hydraulic pump and associated electric motor, valve blocks with pressure, directional and flow valves with inclusion of filter units, hydraulic accumulators, oil, air coolers and accessories.
  • the Fig. 1 shows in terms of circuit engineering, a main valve block 10 with at least two groups 12,14 on connecting lines, which are all connected at one point 16 via a connecting line of a group 12 fluidly interconnected, wherein at least two further connecting lines of this one group 12 each with an assignable connecting line of are connected to other group 14, wherein for the use of predeterminable valve components at least three placeholders 18 are connected in the connecting lines of the other group 14 and wherein at least two further placeholder 20 between a common Connection line 14a of the other group 14 and a respective other assignable connection line 14b of this other group 14 are connected.
  • the circuit technology solution according to the Fig.2 for the two in the direction of the figure seen right placeholders 18 each have a pressure relief valve 22 and on the left half of the blank 18 is occupied by a check valve 24.
  • the right placeholder 20 is provided with an adjustable throttle 26 and the leftmost further placeholder 20 allows a fluid carrying path 28 between connecting lines 14,14b of the other group.
  • the pertinent placeholder 20 also be provided with a fluid path 28 blocking device 30 or in an embodiment not shown a pertinent placeholder 18, but preferably 20, remain completely unoccupied, depending on which overall hydraulic system you want to realize.
  • the main valve block on the outer peripheral side connection points 32 for selectively or partially connecting other components, such as manometers 34, hydraulic pumps 36 with electric drive 60, cooler units 38 (see. Figure 5 ), Filter units 40, hydraulic accumulators 42, further valve components 44, hydraulic tanks 46, electrical and electronic control components 48 (see FIG. Fig.2 ) and at least one intermediate or secondary connection block 50 (s. Figure 4 ).
  • the respective placeholder may have 18.20 valve components, such as pressure relief valves 22, check valves 24, chokes 26 or orifices and switching valves 52, for example in the form of the 4/3-way valve after the Figure 3 , or in the manner of pressure compensator 54 (see. Figure 4 ).
  • FIG. 4 shows how the particular Fig. 4 shows, there is the main valve block 10 is combined with an intermediate or secondary terminal block 50 which is mounted on one of its end faces accordingly.
  • the pertinent intermediate or secondary connection block 50 is provided with additional spacers 56, which in turn can be assigned to corresponding valve components, as already explained, as a function of the solution of the respective system task.
  • the basic circuit according to the Fig.1 shows the respective placeholder 18, 20 of the main valve block 10 in functional groups summarized, once in a two-party group and once in a group of three, which are spatially separated from connecting lines of a group 12. The looking in the direction of Fig.
  • 1 shown left function group consists in this case of a placeholder 18 and another placeholder 20 and the right function group of two placeholders 18 and another placeholder 20.
  • the circuits are preferably realized with six pieces of placeholders and a division made after integer multiple placeholders.
  • FIG. 5 is there a hydraulic system shown with a variety of module components already described.
  • a basic frame part of the aforementioned hydraulic tank 46 which serves as a module constructed of a plurality of hydraulic tanks can be selected, which have said connection points (not shown) for complementation with the other components of the kit and the selectable in predetermined stages different tank volumes (EURO palletized) have.
  • the hydraulic tank 46 on its front view facing the viewer on a level indicator and on the top of the electric motor 60 is arranged, which drives the projecting into the tank 46 hydraulic pump 36.
  • the cooling unit 38 is arranged and on the upper side of the hydraulic tank 46, the main valve block 10 and the intermediate and secondary connection block 50 is arranged with different switching valves in addition to the hydraulic accumulator 42.
  • Completely represented modular system shown can be delivered to customers request as a complete package but also in the form of individual components, which user-specific a customer pertinent components can also refer to third-party manufacturers to then create their own specifications and quality expectations a hydraulic system.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
  • Massaging Devices (AREA)

Claims (8)

  1. Système modulaire ayant au moins un bloc (10) de vanne principal, au moins deux groupes de conduits (12, 14) de liaison, qui communiquent entre eux fluidiquement tous ensemble en un emplacement (16) par un conduit de liaison de l'un des groupe (12), au moins deux conduits de liaison de ce groupe (12) communiquant respectivement avec un conduit de liaison pouvant leur être associé de l'autre groupe (14), et dans lequel pour l'utilisation de composants de vanne pouvant être prescrits au moins trois dispositifs (18) de maintien en place sont montés dans les conduits de liaison de l'autre groupe (14), caractérisé en ce qu'au moins deux autres dispositifs (20) de maintien en place sont montés entre un conduit (14a) de liaison commun de l'autre groupe (14) et respectivement un autre conduit (14b) de liaison pouvant être associé de cet autre groupe (14).
  2. Système modulaire suivant la revendication 1, caractérisé en ce qu'au moins le dispositif (20) de maintien en place d'un composant de vanne reste inoccupée ou bloque le trajet fluidique respectif d'un conduit de liaison ou de plusieurs conduits de liaison de l'un ou de l'autre groupe ou forme un trajet (28) fluidique entre des conduits (14, 14b) de liaison et l'autre groupe.
  3. Système modulaire suivant la revendication 1 ou 2, caractérisé en ce que le bloc (10) de vanne principal a, du côté du pourtour extérieur, des emplacements (32) de raccordement pour le raccordement commun au choix ou partiel d'autres composants comme des manomètres (34), des pompes hydrauliques (36), des groupes de refroidissement (38) et/ou de filtration (40), des accumulateurs (42) hydrauliques d'autres composants (44) de vanne, des cuves (46) hydrauliques des composants (48) de commande électriques et électroniques, y compris des capteurs et des aimants de commutation, ainsi qu'au moins un bloc (50) intermédiaire ou auxiliaire de raccordement.
  4. Système modulaire suivant l'une des revendications 3, caractérisé en ce que le bloc (50) intermédiaire ou auxiliaire de raccordement est muni de dispositifs (56) supplémentaires de maintien en place.
  5. Système modulaire suivant l'une des revendications précédentes 1 à 4, caractérisé en ce que le dispositif (18) respectif de maintien en place du bloc (10) de vanne principal a des composant de vanne comme des vannes (32) de limitation de la pression, des clapets (24) anti retour, des étranglements (26) ainsi que des diaphragmes.
  6. Système modulaire suivant la revendication 4, caractérisé en ce que le dispositif (56) respectif supplémentaire du maintien en place du bloc (50) intermédiaire ou auxiliaire de raccordement a des vannes (52) de commutation comme des vannes de commutation à 2/2 voies ou 3/2 voies, des vannes de limitation de pression, ainsi que des vannes (54), qui ont une fonction de balance manométrique.
  7. Système modulaire suivant l'une des revendications 1 à 6, caractérisé en ce que les dispositifs (18, 20) respectif de maintien en place du bloc (10) de vanne principal sont rassemblés en groupes fonctionnels, notamment en groupes de deux ou trois, qui sont séparés les uns des autres dans l'espace par des conduits de liaison de l'un des groupes (12).
  8. Système modulaire suivant la revendication 3 et le cas échéant suivant l'une des revendications 4 à 7, caractérisé en ce que la cuve (46) hydraulique respective, constituée sous la forme d'un module, peut être sélectionnée dans une pluralité de cuves hydrauliques qui disposent desdits emplacements de raccordement, en vue d'être complétées par les autres composants du module et qui ont des volumes de cuve différents pouvant être sélectionnés en des paliers pouvant être prescrits.
EP04764541A 2003-09-11 2004-08-27 Systeme modulaire Expired - Lifetime EP1664548B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2003143330 DE10343330A1 (de) 2003-09-11 2003-09-11 Baukastensystem
PCT/EP2004/009567 WO2005028878A1 (fr) 2003-09-11 2004-08-27 Système modulaire

Publications (2)

Publication Number Publication Date
EP1664548A1 EP1664548A1 (fr) 2006-06-07
EP1664548B1 true EP1664548B1 (fr) 2008-10-15

Family

ID=34258742

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04764541A Expired - Lifetime EP1664548B1 (fr) 2003-09-11 2004-08-27 Systeme modulaire

Country Status (6)

Country Link
US (1) US8127797B2 (fr)
EP (1) EP1664548B1 (fr)
AT (1) ATE411475T1 (fr)
DE (2) DE10343330A1 (fr)
DK (1) DK1664548T3 (fr)
WO (1) WO2005028878A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016000644A1 (de) * 2016-01-22 2017-07-27 Hydac System Gmbh Schaltungsanordnung

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DE102011105212A1 (de) * 2011-06-09 2012-12-13 Tox Pressotechnik Gmbh & Co. Kg "Hydropneumatische Vorrichtung und Bausatz"
US8919113B2 (en) * 2011-06-28 2014-12-30 Caterpillar Inc. Hydraulic control system having energy recovery kit
US9068575B2 (en) 2011-06-28 2015-06-30 Caterpillar Inc. Hydraulic control system having swing motor energy recovery
US8776511B2 (en) 2011-06-28 2014-07-15 Caterpillar Inc. Energy recovery system having accumulator and variable relief
US8850806B2 (en) 2011-06-28 2014-10-07 Caterpillar Inc. Hydraulic control system having swing motor energy recovery
US9139982B2 (en) 2011-06-28 2015-09-22 Caterpillar Inc. Hydraulic control system having swing energy recovery
CN103994130A (zh) * 2014-06-05 2014-08-20 爱克奇换热技术（太仓）有限公司 一种液压工作回路中使用的冷却设备
DE102019209335A1 (de) * 2019-06-27 2020-12-31 Robert Bosch Gmbh Hydraulik-Steuerblock und hydraulische Achse mit dem Steuerblock

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016000644A1 (de) * 2016-01-22 2017-07-27 Hydac System Gmbh Schaltungsanordnung

Also Published As

Publication number Publication date
DK1664548T3 (da) 2009-02-09
US20070199604A1 (en) 2007-08-30
US8127797B2 (en) 2012-03-06
DE502004008289D1 (de) 2008-11-27
ATE411475T1 (de) 2008-10-15
WO2005028878A1 (fr) 2005-03-31
DE10343330A1 (de) 2005-04-07
EP1664548A1 (fr) 2006-06-07

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