DE102006049012A1 - Valve arrangement for supply of pressure medium of two pressure chambers of hydraulic drive, has valve slides and readjusting surfaces of valve slides are subjected with pressure at pressure connection, - Google Patents
Valve arrangement for supply of pressure medium of two pressure chambers of hydraulic drive, has valve slides and readjusting surfaces of valve slides are subjected with pressure at pressure connection, Download PDFInfo
- Publication number
- DE102006049012A1 DE102006049012A1 DE200610049012 DE102006049012A DE102006049012A1 DE 102006049012 A1 DE102006049012 A1 DE 102006049012A1 DE 200610049012 DE200610049012 DE 200610049012 DE 102006049012 A DE102006049012 A DE 102006049012A DE 102006049012 A1 DE102006049012 A1 DE 102006049012A1
- Authority
- DE
- Germany
- Prior art keywords
- valve
- pressure
- arrangement according
- valve arrangement
- control
- 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.)
- Withdrawn
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
- 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
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
- F15B13/0401—Valve members; Fluid interconnections therefor
- F15B13/0402—Valve members; Fluid interconnections therefor for linearly sliding valves, e.g. spool 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
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
- F15B13/042—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure
- F15B13/043—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure with electrically-controlled pilot valves
- F15B13/0433—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure with electrically-controlled pilot valves the pilot valves being pressure control 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
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
- F15B13/042—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure
- F15B13/043—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure with electrically-controlled pilot valves
- F15B13/0435—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure with electrically-controlled pilot valves the pilot valves being sliding valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/42—Actuating devices; Operating means; Releasing devices actuated by fluid by means of electrically-actuated members in the supply or discharge conduits of the fluid motor
- F16K31/423—Actuating devices; Operating means; Releasing devices actuated by fluid by means of electrically-actuated members in the supply or discharge conduits of the fluid motor the actuated members consisting of multiple way valves
- F16K31/426—Actuating devices; Operating means; Releasing devices actuated by fluid by means of electrically-actuated members in the supply or discharge conduits of the fluid motor the actuated members consisting of multiple way valves the actuated valves being cylindrical sliding valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0025—Electrical or magnetic means
- F16K37/0041—Electrical or magnetic means for measuring valve parameters
-
- 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
- F15B2211/30—Directional control
- F15B2211/31—Directional control characterised by the positions of the valve element
- F15B2211/3144—Directional control characterised by the positions of the valve element the positions being continuously variable, e.g. as realised by proportional 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/30—Directional control
- F15B2211/32—Directional control characterised by the type of actuation
- F15B2211/329—Directional control characterised by the type of actuation actuated by fluid 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
- F15B2211/63—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
- F15B2211/63—Electronic controllers
- F15B2211/6303—Electronic controllers using input signals
- F15B2211/634—Electronic controllers using input signals representing a state of a 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
- F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
- F15B2211/705—Output members, e.g. hydraulic motors or cylinders or control therefor characterised by the type of output members or actuators
- F15B2211/7051—Linear output members
- F15B2211/7053—Double-acting output members
Abstract
Description
Die Erfindung betrifft eine Ventilanordnung zur Druckmittelversorgung zweier Druckräume eines Verbrauchers gemäß dem Oberbegriff des Patentanspruchs 1.The The invention relates to a valve arrangement for pressure medium supply two pressure chambers a consumer according to the generic term of claim 1
Derartige
Ventilanordnungen werden beispielsweise bei Zylinderantrieben eingesetzt,
um beide Zylinderräume
unabhängig
voneinander zu regeln, so dass der Antrieb mit hoher Dynamik bei
geringen Drosselverlusten betrieben werden kann. In der
Die
In
der
In
der
Bei den letztgenannten Ventilen sind vergleichsweise komplexe Gehäusekonstruktionen und teure Vorsteuerventile erforderlich.at the latter valves are comparatively complex housing constructions and expensive pilot valves required.
Demgegenüber liegt der Erfindung die Aufgabe zugrunde, eine Ventilanordnung zu schaffen, die eine unabhängige Regelung des Drucks in zwei Druckräumen eines hydraulischen Betriebs bei minimalem vorrichtungstechnischen Aufwand ermöglicht.In contrast, lies The invention has for its object to provide a valve assembly, the an independent one Regulation of the pressure in two pressure chambers of a hydraulic operation allows for minimal device complexity.
Diese Aufgabe wird durch eine Ventilanordnung mit den Merkmalen des Patentanspruchs 1 gelöst.These The object is achieved by a valve arrangement having the features of the patent claim 1 solved.
Erfindungsgemäß ist ein Ventilgehäuse der Ventilanordnung mit einem Druckanschluss, einem Rücklaufanschluss und zwei Arbeitanschlüssen ausgeführt, wobei die Druckmittelströmungspfade zwischen den Anschlüssen über zwei in einer gemeinsamen Ventilbohrung geführten Schieber gesteuert werden. Jedem der Schieber ist eine einfach wirkende Vorsteuerung zugeordnet, über die aussenliegenden Steuerflächen der beiden Schieber mit einem Steuerdruck beaufschlagbar sind. Einander zuweisende, innenliegende Rückstellflächen der beiden Ventilschieber sind mit einem Rückstelldruck beaufschlagt, der etwa dem Druck am Druckanschluss entspricht. Die Rückstellflächen sind mit Bezug zu den Steuerflächen mit Flächendifferenz ausgeführt.According to the invention is a valve housing the valve assembly with a pressure port, a return port and two work connections executed wherein the pressure medium flow paths between the connections over two be controlled in a common valve bore guided slide. Each of the slides is assigned a single-acting feedforward control via the external control surfaces the two slides can be acted upon by a control pressure. each other assigning, internal restoring surfaces of two valve spools are subjected to a reset pressure, which corresponds approximately to the pressure at the pressure connection. The rest areas are with reference to the control surfaces with area difference executed.
Die wirksame Fläche der beiden Rückstellflächen ist vorzugsweise gegenüber den Steuerflächen durch einen Verbindungskörper reduziert, der in die benachbarten Endabschnitte der Ventilschieber eintaucht.The effective area the two return surfaces is preferably opposite the control surfaces through a connecting body reduced, which dips into the adjacent end portions of the valve spool.
Eine derartige Konstruktion ermöglicht es, ein herkömmliches, als Massenprodukt verfügbares 4/3-Wege-Industrieventilgehäuse mit fünf Kammern – zwei aussenliegenden Tankkammern, zwei mit den Arbeitsanschlüssen verbundenen Arbeitskammern und einer mittleren, mit dem Druckanschluss verbundenen Druckkammer – zu verwenden, so dass die Ventilanordnung wesentlich preisgünstiger als die eingangs genannten Lösungen herstellbar ist.A allows such construction it, a conventional, available as a mass product 4/3-way industrial valve body with five chambers - two outside Tank chambers, two working chambers connected to the working ports and a middle pressure chamber connected to the pressure port - to use so that the valve assembly much cheaper than the aforementioned solutions can be produced.
Bei einem besonders bevorzugten Ausführungsbeispiel ist der Verbindungskörper als Hülse ausgeführt, deren Endabschnitte jeweils in einer Aufnahme der Ventilschieber geführt sind, wobei die von der Hülse und den Aufnahmen begrenzten Räume druckentlastet sind.at a particularly preferred embodiment is the connecting body designed as a sleeve whose End sections are each guided in a receptacle of the valve slide, being from the sleeve and the recordings limited spaces relieved of pressure are.
Eine derartige Druckentlastung kann beispielsweise dadurch erfolgen, dass diese Räume über Schieberbohrungen mit zumindest einer der mit dem Rücklaufanschluss hydraulisch verbundenen Tankkammern verbunden sind.A such pressure relief can be done, for example, that these spaces have slide holes with at least one of the hydraulically connected to the return port connected to tank chambers are connected.
Die Gleitflächen des Verbindungskörpers lassen sich besonders einfach herstellen, wenn diese als radialvorspringende Gleitbünde ausgebildet sind, die darüberhinaus noch einen leichten Versatz der in den Ventilschiebern ausgebildeten Aufnahmen ausgleichen können. Diese Gleitbünde sind vorzugsweise ballig ausgeführt.The sliding surfaces leave the connecting body Particularly easy to produce, if this as a radially projecting Gleitbünde are trained, the moreover a slight misalignment of trained in the valve pushers Balances can compensate. These sliding collars are preferably executed crowned.
Die Vorsteuerventile sind vorzugsweise so ausgebildet, dass der maximal einstellbare Steuerdruck etwa dem Druck am Druckanschluss entspricht.The Pilot valves are preferably designed so that the maximum adjustable control pressure corresponds approximately to the pressure at the pressure port.
Bei einem bevorzugten Ausführungsbeispiel ist jedem der Ventilschieber ein elektrisch betätigtes Vorsteuerventil zugeordnet, das im Fail-Safe-Modus die rückseitigen Steuerflächen mit dem Druck am Druckanschluss verbindet.at a preferred embodiment associated with each of the valve spools an electrically actuated pilot valve, in the fail-safe mode the back control surfaces connects to the pressure at the pressure port.
Bei einem besonders bevorzugten Ausführungsbeispiel ist die Bewegung der Ventilschieber jeweils durch einen Anschlag begrenzt, so dass im Fail-Safe-Modus eine definierte Schieberposition angefahren wird.at a particularly preferred embodiment is the movement of the valve slide each by a stop limited so that in fail-safe mode a defined slide position is approached.
Die Vorsteuerventile sind vorzugsweise als stetig verstellbare 3/2-Wegeventile ausgeführt.The Pilot valves are preferably as continuously adjustable 3/2-way valves executed.
Das über dem Verbindungskörper eingestellte Flächenverhältnis zwischen der Steuerfläche und der Rückstellfläche beträgt bei einem vorteilhaften Ausführungsbeispiel etwa 2:1.That over the connecting body set area ratio between the control surface and the return area is at one advantageous embodiment about 2: 1.
Sonstige vorteilhafte Weiterbildungen der Erfindung sind Gegenstand weiterer Unteransprüche.other advantageous developments of the invention are the subject of further Dependent claims.
Im Folgenden wird ein bevorzugtes Ausführungsbeispiel der Erfindung anhand schematischer Zeichnungen näher erläutert. Es zeigen:in the The following will be a preferred embodiment of the invention explained in more detail with reference to schematic drawings. Show it:
Der
konkrete Aufbau der Ventilanordnung
Gemäß
Jeder
der beiden Ventilschieber
Die
beiden Vorsteuerventile
Gemäß der konkreten
Lösung
des Vorsteuerventils
Über die
beiden Vorsteuerventile
Die
beiden Aufnahmen
Die
Aufeinanderzubewegung der beiden Ventilschieber
Die Erfindung läßt sich auch zur Ansteuerung von Hydromotoren oder sonstigen hydraulischen Antrieben einsetzen, bei denen zwei Druckräume mit unterschiedlichen Drücken zu beaufschlagen sind.The Invention can be also for the control of hydraulic motors or other hydraulic Use drives in which two pressure chambers with different pressures too are charged.
Die Erfindung zeichnet sich durch einen äußerst kompakten Aufbau aus, wobei durch die Verwendung herkömmlicher, einfach aufgebauter Gehäuse aus der Industriehydraulik eine kostengünstige Realisierung ermöglicht ist.The Invention is characterized by an extremely compact design, whereby, by using conventional, simply constructed housing From industrial hydraulics a cost-effective implementation is possible.
Offenbart ist eine Ventilanordnung zur variablen Einspannung von hydraulischen Antrieben mit zwei sparst betätigten Ventilschiebern, die in einer gemeinsamen Ventilbohrung geführt sind und die über eine Vorsteuerung verschiebbar und hydraulisch rückstellbar sind. Die hydraulische Rückstellung bewirkende Rückstellflächen sind mit dem Druckarm einen Druckanschluss der Ventilanordnung beaufschlagt, wobei die wirksame Fläche der Rückstellflächen mit Flächendifferenz rückseitiger Steuerflächen ausgeführt sind.Disclosed is a valve assembly for variable clamping of hydraulic drives with two spar-operated valve spools, which in one common valve bore are guided and which are displaceable via a pilot control and hydraulically resettable. The hydraulic return causing return surfaces are acted upon by the pressure arm to a pressure port of the valve assembly, wherein the effective area of the return surfaces are executed with area difference rear control surfaces.
- 11
- Differentialzylinderdifferential cylinder
- 22
- Druckraumpressure chamber
- 44
- Druckraumpressure chamber
- 66
- Ventilanordnungvalve assembly
- 88th
- 3/2-Wegeventil3/2-way valve
- 1010
- 3/2-Wegeventil3/2-way valve
- 1212
- Ventilschiebervalve slide
- 1414
- Ventilschiebervalve slide
- 1616
- Ventilbohrungvalve bore
- 1818
- Ventilgehäusevalve housing
- 2020
- Vorsteuerventilpilot valve
- 2222
- Vorsteuerventilpilot valve
- 2424
- Wegaufnehmertransducer
- 2626
- Wegaufnehmertransducer
- 2828
- Regeleinheitcontrol unit
- 3030
- Arbeitsleitungworking line
- 3232
- Arbeitsleitungworking line
- 3333
- Drucksensorpressure sensor
- 3434
- Druckkammerpressure chamber
- 3636
- Arbeitskammerworking chamber
- 3838
- Arbeitskammerworking chamber
- 4040
- Tankkammertank chamber
- 4242
- Tankkammertank chamber
- 4444
- BundFederation
- 4646
- BundFederation
- 4848
- Steuerkammercontrol chamber
- 5050
- Steuerkammercontrol chamber
- 5252
- Steuerbundcontrol collar
- 5454
- Steuerbundcontrol collar
- 5656
- Steuerkerbecontrol notch
- 5858
- Steuerkerbecontrol notch
- 6060
- Steuerkerbecontrol notch
- 6262
- Steuerkerbecontrol notch
- 6464
- Federfeather
- 6666
- Steuerkanalcontrol channel
- 6868
- Steuerkanalcontrol channel
- 7070
- Druckkanalpressure channel
- 7272
- Druckkanalpressure channel
- 7474
- Tankkanaltank channel
- 7676
- Tankkanaltank channel
- 7878
- Proportionalmagnetproportional solenoid
- 8080
- Vorsteuergehäusepilot housing
- 8282
- Bohrungdrilling
- 8484
- Vorsteuerschieberpilot slide
- 8686
- Mittelbundcenter collar
- 8888
- EndbundDead end
- 9090
- EndbundDead end
- 9292
- Druckkammerpressure chamber
- 9494
- VorsteuerdruckkanalPilot pressure channel
- 9696
- VorsteuertankkanalPilot tank passage
- 9898
- Ausgangskanaloutput channel
- 100100
- Steuerflächecontrol surface
- 102102
- Steuerflächecontrol surface
- 104104
- Rückstellflächereturn surface
- 106106
- Rückstellflächereturn surface
- 108108
- Verbindungskörperconnecting body
- 110110
- Aufnahmeadmission
- 112112
- Aufnahmeadmission
- 114114
- Gleitbundslide collar
- 116116
- Gleitbundslide collar
- 118118
- Gleitflächesliding surface
- 120120
- SacklochbohrungBlind hole
- 122122
- SacklochbohrungBlind hole
- 124124
- Radialbohrungradial bore
- 126126
- Radialbohrungradial bore
- 128128
- Kolbenhalstang
- 130130
- Kolbenhalstang
- 132132
- Anschlagattack
- 134134
- Anschlagattack
Claims (12)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200610049012 DE102006049012A1 (en) | 2006-10-17 | 2006-10-17 | Valve arrangement for supply of pressure medium of two pressure chambers of hydraulic drive, has valve slides and readjusting surfaces of valve slides are subjected with pressure at pressure connection, |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200610049012 DE102006049012A1 (en) | 2006-10-17 | 2006-10-17 | Valve arrangement for supply of pressure medium of two pressure chambers of hydraulic drive, has valve slides and readjusting surfaces of valve slides are subjected with pressure at pressure connection, |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102006049012A1 true DE102006049012A1 (en) | 2008-04-30 |
Family
ID=39244123
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200610049012 Withdrawn DE102006049012A1 (en) | 2006-10-17 | 2006-10-17 | Valve arrangement for supply of pressure medium of two pressure chambers of hydraulic drive, has valve slides and readjusting surfaces of valve slides are subjected with pressure at pressure connection, |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102006049012A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011088974A1 (en) * | 2010-01-21 | 2011-07-28 | Hydac Fluidtechnik Gmbh | Valve device |
CN104776076A (en) * | 2014-01-13 | 2015-07-15 | 丹佛斯动力系统有限公司 | Electrohydraulic control valve |
DE102021119147A1 (en) | 2021-07-23 | 2023-01-26 | Heinz-Dieter Schunk Gmbh & Co. Spanntechnik Kg | Valve device for arrangement in or on a pneumatic clamping or gripping device and pneumatic clamping or gripping device |
-
2006
- 2006-10-17 DE DE200610049012 patent/DE102006049012A1/en not_active Withdrawn
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011088974A1 (en) * | 2010-01-21 | 2011-07-28 | Hydac Fluidtechnik Gmbh | Valve device |
US9115730B2 (en) | 2010-01-21 | 2015-08-25 | Hydac Fluidtechnik Gmbh | Valve device |
EP3073126A1 (en) * | 2010-01-21 | 2016-09-28 | Hydac Fluidtechnik GmbH | Valve device |
CN104776076A (en) * | 2014-01-13 | 2015-07-15 | 丹佛斯动力系统有限公司 | Electrohydraulic control valve |
EP2894353A1 (en) * | 2014-01-13 | 2015-07-15 | Danfoss Power Solutions Aps | Electrohydraulic control valve |
US10215200B2 (en) | 2014-01-13 | 2019-02-26 | Danfoss Power Solutions Aps | Electrohydraulic control valve |
DE102021119147A1 (en) | 2021-07-23 | 2023-01-26 | Heinz-Dieter Schunk Gmbh & Co. Spanntechnik Kg | Valve device for arrangement in or on a pneumatic clamping or gripping device and pneumatic clamping or gripping device |
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Effective date: 20131018 |