EP2419646B1 - Fluidic system - Google Patents
Fluidic system Download PDFInfo
- Publication number
- EP2419646B1 EP2419646B1 EP20100708721 EP10708721A EP2419646B1 EP 2419646 B1 EP2419646 B1 EP 2419646B1 EP 20100708721 EP20100708721 EP 20100708721 EP 10708721 A EP10708721 A EP 10708721A EP 2419646 B1 EP2419646 B1 EP 2419646B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- valve
- fluidic
- passage
- drive
- fluid
- 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.)
- Not-in-force
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Classifications
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- 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
- F15B11/006—Hydraulic "Wheatstone bridge" circuits, i.e. with four nodes, P-A-T-B, and on-off or proportional valves in each link
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- 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
- F15B13/021—Valves for interconnecting the fluid chambers of an actuator
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- 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
- F15B2211/30575—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 in a Wheatstone Bridge arrangement (also half bridges)
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- 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
- Y10T137/87096—Valves with separate, correlated, actuators
Definitions
- the invention relates to a fluid power system with a valve device for fluid supply fluidic consumers, which has a plurality of valve modules; the valve modules each comprise a channel body having a feed channel recess formed for connection to a fluid source, two working channels provided for coupling fluidic consumers and a vent channel recess for venting fluid consumers, and four 2/2-way valves each having first and second Fluid port and a movable valve member for adjusting a free fluid channel cross-section between the first and second fluid port, wherein the four 2/2-way valves of the valve modules are interconnected in a full bridge arrangement, wherein the first fluid ports of the first and second 2/2 -Wegeventils are connected to the Suitekanalausströmung, the second fluid port of the first 2/2-way valve and the first fluid port of the fourth 2/2-way valve are connected to a first working channel, the second fluid port of the second 2/2-way valve and the first Fluid port of the third 2/2-way valve are connected to a second working channel and the second fluid ports of the third and
- a multi-way valve with a freely configurable valve function known which comprises a plurality of arranged on a valve body pressure fluid connections and an electrically controllable drive unit for actuating a valve body housed in the valve mechanism.
- the valve mechanism consists of at least four individual, connected in series 2/2-way main valves with intermediate pressure fluid connections. Each individual main valve is associated with an electric drive element which is connected to a common electronic control device. With the multi-way valve, different travel functions can be freely selected.
- a valve arrangement for gaseous and liquid media is known. This comprises at least four 2/2-way valves linked to a multiway valve unit in a full bridge arrangement, to which an electrical control unit having at least one bus connection, at least one sensor connection and at least one pulse width modulation is assigned.
- the directional valves are designed as fast-switching plate anchor valves whose switching time is less than 5 milliseconds.
- the EP 0 391 269 B1 discloses a solenoid valve with a battery arranged on a common base plate plurality of solenoid valves, the input side via a channel integrated into the base plate can be supplied together with compressed air.
- the channel is connected to a stub, which opens at two opposite surfaces of the base plate.
- a solenoid valve which has a base body penetrated by valve channels and a magnetic head having an electromagnetic device. Between the magnetic head and the base body, which are arranged successively in the direction of a main axis, a communicating with a plurality of valve channels valve chamber is arranged.
- the valve chamber contains a plate-shaped armature serving as a valve member, which can be attracted by a stationary magnetic core arrangement of the electromagnetic device.
- the US 6,598,391 discloses a valve assembly of a plurality of interconnected 2/2-way valves for controlling a hydraulic cylinder, in which the two associated with the hydraulic cylinder working channels each have a pressure relief valve is associated. This should be limited in a rapid deceleration of the hydraulic cylinder from a movement that takes place by blocking the associated 2/2-way valves, caused by the inertia of the hydraulic cylinder and the load coupled thereto pressure increase in one of the two working spaces of the hydraulic cylinder.
- the WO 2005/077731 A1 discloses a vehicle steering system for motor vehicles, with an operable by the driver steering handle and the steered vehicle wheels associated actuator which is operatively connected to the steering handle and by means of which possibly further elements, such as tie rods and toggle lever, the steered vehicle wheels for setting a desired steering angle are pivotable and which actuator is a hydraulic unit, with two hydraulic chambers, which are separated by a hydraulic piston and the pressure of a Hydraulic pressure source can be acted upon.
- the object of the invention is to provide a fluid power system which has an improved efficiency in the use of fluids, in particular when used with a fluidic drive system.
- the connecting channel is formed in a channel unit having two provided for communicating with the working channels fluid channels and which is provided for attachment of the connection surface of the valve module.
- valve module With the help of the additional module provided in the working channels of the valve module fluid flows can be performed separately or mixed together depending on the setting of the valve means. Due to the separate design of the additional module comprising the channel unit and the valve means, the additional module can be mounted in a compact design as needed to the respective valve module and installed together with this in the valve device. It is advantageous if the valve means is placed on the channel unit, as a structurally simple design of the channel unit can be realized thereby.
- the valve modules are lined up with mutually facing joining surfaces along a stacking direction and thereby form the valve device.
- the working channels of the valve modules open at a connection surface, which is aligned perpendicular to the stacking direction and perpendicular to the joining surface.
- the channel unit is provided for engagement with the pad, the Fluid channels of the channel unit can be brought into coincidence with the working channels of the channel body.
- the additional module prefferably be arranged in a mounting direction parallel to the surface normal of the connection surface of the valve module or to another additional module for a sequence in order to form an additional module arrangement.
- This ensures that arranged on one or more valve modules additional modules do not hinder the stacking of the valve modules to the valve device.
- a communicating connection between the additional module associated with the respective valve module and the working channels of the valve module opening out at the connection surface is thereby ensured in a simple manner.
- it is advantageous that in the mounting direction several additional modules strung together can be attached to a valve module, whereby the functional scope of the valve module can be extended by a plurality of additional functions without hindering the stacking of the valve modules to the valve device.
- valve means is designed as a 2/2-way valve.
- a trained valve means may have the same structure as the 2/2-way valves of the valve module, preferably be identical to the 2/2-way valves of the valve module.
- control device for an intermittent control of the 2/2-way valves of the valve modules and the valve means in the manner of continuous valves, in particular by application of a pulse width modulation method is formed.
- the 2/2-way valves are preferably designed as switching valves, which can be switched when actuated by the control device from a switching state, for example, the blocking position, in another switching state, for example, the release position.
- a control or regulation of a fluid volume flow through the respective 2/2-way valve is achieved by a rapid switching between the two switching states.
- a switching behavior for the fluid flow can be achieved, which corresponds at least almost to the switching behavior of a continuous valve or proportional valve.
- a control of the 2/2-way valves of the valve module and / or the valve means by pulse width modulation takes place.
- the ratio between the duty cycle and off duration (duty cycle) is varied at a constant switching frequency to adjust the fluid flow through the 2/2-way valve or the valve means the need.
- a detection device in particular a pressure sensor and / or a flow sensor and / or a temperature sensor and / or a moisture sensor, to determine an electrical measurement signal as a function of the fluid flowing in the connection channel is arranged, which is electrically coupled to the control device.
- a detection device in particular a pressure sensor and / or a flow sensor and / or a temperature sensor and / or a moisture sensor, to determine an electrical measurement signal as a function of the fluid flowing in the connection channel is arranged, which is electrically coupled to the control device.
- a detection device in direct contact with the fluid stream, for example a moisture sensor or a temperature sensor, or the sensor is arranged on a wall of the connecting channel away from the flowing fluid, for example a flow sensor.
- control device is configured to control the 2/2-way valves and the valve means such that a temporary release of the communicating connection between the first and the second working channel in dependence on an operating state of a coupled to the working channel fluidic component and / or in dependence an electrical measurement signal of a detection device can be predetermined.
- a temporary release of the communicating connection between the first and the second working channel in dependence on an operating state of a coupled to the working channel fluidic component and / or in dependence an electrical measurement signal of a detection device can be predetermined.
- a first drive chamber of a fluidic drive device in particular a fluid cylinder, communicating with the first working channel and a second drive chamber of the fluidic drive device to the second working channel, and that the drive chambers separated from each other by a linearly movable drive element are.
- the fluidic drive device may be a pneumatic cylinder in which a linearly movable piston serving as a working element divides a cylinder space into a first and a second size-variable drive chamber.
- the fluidic drive device can be operated not only in the manner of a motor that converts fluid energy into kinetic energy, but also in the manner of a fluidic generator in which kinetic energy is converted into fluidic energy.
- control device is set up to control the 2/2-way valves and the valve means such that ventilation or venting of the first drive chamber can be predetermined independently of venting or ventilation of the second drive chamber.
- the desired more efficient use of the fluid can be effected, for example, by relieving the pressure, in particular venting, of the pressurized drive chamber prior to pressurization of the other drive chamber.
- the movement of the fluidic drive device can take place with a lower fluid pressure and / or a higher speed of movement of the drive device, since less fluid volume has to be displaced from the drive chamber pressurized up to that point.
- control device is configured to control the 2/2-way valves and the valve means, that at least partially equalized pressure between the drive chambers can be predetermined when approaching a drive element movably received in the drive chambers to an end position determined by the minimum volume of the respective drive chamber at least partially to allow conversion of the kinetic energy of the drive element in fluid pressure of a working fluid.
- This can be done with low Expense a gentle deceleration of the fluidic drive device can be effected before reaching a mechanically induced end position.
- both the pressure supply of a drive chamber and the pressure relief of the other drive chamber which takes place via the valve module, switched off or shut off.
- the pressure difference between the two drive chambers is additionally reduced and converted at least a portion of the kinetic energy of the drive element in an increased fluid pressure of the fluid serving as the working fluid.
- control device is configured for controlling the 2/2-way valves and the valve means, that a pressure difference between the first and the second drive chamber of the fluidic working device during a movement of the drive element can be specified as constant. This avoids that due to large differences in pressure too fast movement of the fluidic drive device comes, which then has to be braked again.
- the fluidic drive device when using a compressible fluid, in particular compressed air due to the increased pressure level in both drive chambers has a higher rigidity and thus less strongly deflected by external force from a predetermined position.
- the control device is configured for controlling the 2/2-way valves and the valve means, that during a movement of the drive element by, in particular intermittent, control of the valve means, a pressure equalization between the reduced by the movement of the drive member drive chamber and by the movement of the Drive element enlarged drive chamber of the fluidic working device can be predetermined.
- the fluidic drive device can be used, for example, as a generator, in which the kinetic energy of the drive element for the pressurization, in particular compression, of fluid is used.
- the pressurized, in particular compressed, fluid for example, a filling of a pressure accumulator or a Pressure equalization between the drive chambers of the fluidic drive direction can be made.
- the 2/2-way valves are formed as valve units, wherein the actuating means forms a compact unit with a valve portion, which is placed on the mounting surface of the channel body or the channel unit, wherein the valve portion of the first and the second fluid port and a valve seat against which the valve member is movably arranged to affect the free fluid channel cross-section between the first and second fluid ports between a blocking position and a release position.
- the 2/2-way valves are formed completely outside the channel body and are mounted as compact units on the mounting surface of the channel body.
- the 2/2-way valves comprise in addition to the electrically controllable actuating means the valve portion which serves the fluid guide.
- the valve portion has a fluid channel, which opens at an outer surface into two spaced-apart fluid ports.
- a valve seat is formed, which allows a sealing engagement of the valve member to block the free cross section of the fluid channel.
- the valve member can be influenced by a force exerted by the actuating means such force be that this occupies either the blocking position or the release position.
- the outer surface of the valve portion, in which the fluid ports open out, is provided for flat sealing engagement with the mounting surface of the channel body.
- the fluid connections are provided for communicating connections with fluid channels in the channel body.
- the four valve units of the valve module are all constructed in an identical manner and are each attached to the channel body with discrete fasteners, for example screws.
- the identical construction of the valve units and the individual attachment to the channel body facilitates the replacement of individual valve units in the event of damage.
- An Indian FIG. 1 illustrated fluid technical system comprises a valve device 1 and a provided for driving the valve device 1, not shown, control device.
- the valve device 1 is for the fluidic supply of a plurality of fluidic consumers, not shown, For example, pneumatic cylinder provided. It serves to control and / or regulate a multiplicity of fluid flows which are to be provided by a fluid source, not illustrated, to the respective fluidic consumers on the basis of control signals of the control device, not shown.
- the valve device 1 comprises a plurality of exemplary disk-like valve modules 2 which are lined up in a stacking direction 3.
- the valve modules 2 are arranged between a base element 4 and a closure plate 5, which delimit the valve device 1 along the stacking direction 3 at each end.
- valve modules 2 are associated with additional modules 6, 7, which are designed for example as valve elements or sensor elements.
- the additional modules 6, 7 are, as can be seen from the FIG. 1 shows, in an assembly direction 92 orthogonal to the stacking direction 3 juxtaposed and allow, if necessary, the extension of the functional scope of the valve modules. 2
- the base element 4 is cuboid-shaped and has a feed opening 9 for connecting a fluid conductor (not shown) to an end face 8, the surface normal of which is oriented orthogonal to the stacking direction 3, via which pressurized or vacuum-pressurized fluid can be provided.
- the base element 4 further has a vent opening 10, which can serve as an outlet for fluid, for example, which has already flowed through the valve device 1 and the fluidic consumers, not shown.
- the valve device 1 for controlling and / or regulating gas streams, in particular compressed air streams, can at the vent 10 of the base member 4 a not shown silencer can be arranged.
- valve device 1 a plurality of valve modules 2 are lined up on the base member 4 in the stacking direction 3, all of which have the same structure.
- the task of the valve modules 2 is to dispense the fluid provided via the base element 4 in the desired manner to the fluidic consumers (not shown) and, if appropriate, to return the fluid flowing back from the fluidic consumers back to the base element 4.
- Each of the valve modules 2 comprises a plate-shaped channel body 11 and the channel body 11 patch, uniformly shaped valve units 12.
- the valve units 12 of the valve module 2 are provided with a cover strip 13, for example, for noise reduction and / or shielding of the valve units 12 from environmental influences, in particular dirt, and / or for electrical contacting of the valve units 12 may be formed.
- the valve unit 12 of the additional module 6 is provided with a cover 14, which realizes the same functionality for the single valve unit 12 as the cover strip 13 for the plurality of valve units 12 of the valve module 2.
- the plate-shaped channel body 11 which may for example have a cubic outer geometry, has two mutually opposite joining surfaces whose surface normals, not shown, are aligned parallel to the stacking direction 3.
- the non-illustrated surface normal extending perpendicular to the stacking direction 3 serves a shorter narrow side as a connection surface 17 and a longer narrow side as a mounting surface 18th
- connection openings 19, 20 of a first and a second working channel 21, 22 open out at the connection surface 17.
- the first working channel 21 provides a communicating connection between a fluidic load connectable to the connection opening 20 and the first 2/2-way valve 41 and the fourth 2/2-way valve 46.
- the second working channel 22 is provided for a communicating connection between the connection opening 19 and the second 2/2-way valve 42 and the third 2/2-way valve 45.
- the designated with Z1 first working channel 21 is communicatively connected to the second fluid port 48 of the first 2/2-way valve 41 and to the first fluid port 55 of the fourth 2/2-way valve 46.
- the designated with Z2 second working channel 22 is communicatively connected to the second fluid port 50 of the second 2/2-way valve 42 and to the first fluid port 51 of the third 2/2-way valve 45.
- the first fluid port 47 of the first 2/2-way valve 41 and the first valve port 49 of the second 2/2-way valve 42 are communicatively connected to the Suitekanalaus Principleung 35, which is designated P.
- the second fluid port 52 of the third 2/2-way valve 45 and the second valve port 56 of the fourth 2/2-way valve 46 are communicatively connected to the EntigenungskanalausANSung 36, which is designated R.
- This interconnection of the 2/2-way valves 41, 42, 45, 46 is also referred to as full bridge interconnection and makes it possible to block or release individually communicating connections between the feed channel section 35 and the working channels 21, 22 and the vent channel section 36.
- the working channels 21, 22nd connectable to each other by means of the additional module 6, which can achieve additional functions for the fluid flows.
- a fluidic drive device 115 designed, for example, as a pneumatic working cylinder is provided, the first drive chamber 116 of which is connected to the first working channel 21.
- the second drive chamber 117 of the fluidic drive device 115 is connected to the second working channel 22.
- the first working channel 21 and the second working channel 22 each have an integrated in the additional module 6 detection means 125, 126 associated, which may be formed for example as a pressure sensor, flow sensor, temperature sensor, moisture sensor or a combination thereof.
- the two drive chambers 116, 117 are separated by a linearly movable, for example, designed as a fluid piston, drive element 118 and are variable in size due to the displaceability of the drive member 118.
- the drive element 118 is coupled to an exemplary actuating means 119 designed as a piston rod, which allows a movement transmission from the drive element 118 to a body, not shown, for example, a machine element.
- a position sensor 120, 121 is mounted, which can detect an approximation of the drive member 118 to the respective end face 122, 123 of the drive chamber 116 and 117 and then provides an electrical signal.
- the control device 127 is set up to process measurement signals, which, in particular, can be provided by the detection devices 125, 126, with the appropriate design also by the 2/2-way valves 41, 42, 45, 46, 124 and by the position sensors 120, 121 ,
- the controller 127 is configured to provide electrical control signals or electrical control energy to actuate the 2/2-way valves 41, 42, 45, 46, 124.
- valve modules 2 and optionally coupled thereto additional modules 6, 7 can be controlled in a manner not shown.
- the control can take place both as a control (open loop), in particular as a time control, or as closed-loop control involving one or more measuring signals.
- the control device 127 may, for example, be configured such that it can control the valve module 2 and the additional module 6 in such a way that the drive chambers 116, 117 of the fluidic drive device 115 are supplied with fluid in such a way that the drive element 118 and the actuating element 119 coupled thereto perform a linear movement in the direction of the longitudinal axis of the actuating element 119 performs.
- the 2/2-way valves 41, 42, 45, 46 and the 2/2-way valve 124 of the additional module 6 in the in FIG. 3 be controlled schematically shown.
- a "0" in the lookup table indicates that the associated 2/2-way valve 41, 42, 45, 46, 124 is in the lock position
- a "1" in the lookup table indicates that the associated 2/2 Directional valve 41, 42, 45, 46 is in the release position and the fluid channel between the first and the second fluid port of the respective 2/2-way valve 41, 42, 45, 46, 124 releases.
- step I a pressurization of the first drive chamber 116 takes place by the first 2/2-way valve 41 is driven. Due to the throttling losses in the supply lines between the fluid source and the drive chamber 116, there is no sudden, but only a rapid increase in pressure at the working channel 21 and thus in the first drive chamber 116. At the same time there is a pressure relief of the second drive chamber 117, which is still pressurized example of a previous movement step by the third 2/2-way valve 45 is driven and thus the connection between the second drive chamber 117 and the venting section 36 is released. As a result, a differential pressure builds up between the two drive chambers 116, 117, which causes an acceleration of the drive element 118 in the direction of the drive chamber 117, whose volume is thereby reduced.
- step II the pressure in the working channel 21 has reached the pressure level of the supply pressure, so that a stationary state is established in the working channel 21 and in the associated drive chamber 116.
- the first drive chamber 116 is further supplied via the first 2/2-way valve 41 with pressurized fluid while the second drive chamber 117 is connected by intermittent activation of the third 2/2-way valve 45 at least temporarily communicating with the vent passage section 36.
- step III the supply of pressurized fluid to the drive chamber 116 is interrupted by appropriate control of the 2/2-way valve 41 and the third 2/2-way valve 45 is brought into the blocking position. Due to the inertia of the drive member 118, the actuator 119 and an optionally actuated by the actuator 119 machine component, the drive member 118 maintains its movement, wherein the speed decreases due to friction effects. Due to the increasing enlargement of the first drive chamber 116 due to the movement of the drive element 118, a reduction of the fluid pressure in the first drive chamber 116 takes place. In the second drive chamber 117, a pressure buildup takes place due to the activation of the third 2/2-way valve 45 in the blocking position. As a result, the differential pressure between the driving chambers 116 and 117 is reduced, and the moving speed of the driving member 118 is slowed down.
- step IV the communicating connection between the second drive chamber 117 and the vent passage section 36 is interrupted by corresponding activation of the third 2/2-way valve 45.
- the 2/2-way valve 124 of the additional module 6 is controlled by the control device 127, whereby the connection channel between the first and the second working channel 21, 22 is released and a pressure equalization between the first and the second drive chamber 116, 117 takes place.
- the pressure in the second drive chamber 117 increases rapidly due to the high pressure difference with respect to the first drive chamber 116.
- the pressures in both drive chambers 116, 117 approach a common level.
- the speed of movement of the drive member 118 decreases due to frictional effects and the decreasing pressure difference between the two drive chambers 116, 117 continues from.
- a braking operation is initiated in step V by the 2/2-way valve 124 of the additional module 6 is intermittently driven, while all other 2/2-way valves 41, 42, 45, 46 are closed.
- a temporary pressure increase instead, as long as the 2/2-way valve 124 is closed.
- the desired braking effect occurs.
- the pressurized fluid intermittently exchanged between the two drive chambers 116 and 117 in order to avoid a reverse movement of the drive member 118.
- a temporary intermittent control of the third 2/2-way valve 45 in step IV be provided, as well as in the FIG. 3 is shown to prevent too rapid pressure build-up in the second drive chamber 117 and a possibly resulting reversal movement of the drive member 118.
- the fluidic drive device 115 Since the fluid pressure remains at a certain specifiable level due to the pressure equalization by means of the 2/2-way valve 124 of the additional module 6 in both drive chambers 116 and 117, the fluidic drive device 115 has a high rigidity against external forces.
- the deceleration process in step VI to the new Initiation of movement of the drive member 118 requires a smaller amount of fluid than a full pressure relief of the first drive chamber 116, as is required in known from the prior art drives using multi-way valves. This is due to the fact that both drive chambers 116, 117 are still filled with pressurized fluid.
- the drive element 118 when using a compressible fluid such as compressed air, it is possible to achieve a renewed movement of the drive element 118, for example in the opposite direction, that now only the working chamber 116 is vented without further fluid supply. Due to the resulting pressure difference between the two drive chambers 116 and 117, the drive element 118 can set in the direction of the drive chamber 116 in motion.
- a compressible fluid such as compressed air
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- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
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- Analytical Chemistry (AREA)
- Fluid-Pressure Circuits (AREA)
- Magnetically Actuated Valves (AREA)
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Description
Die Erfindung betrifft ein fluidtechnisches System mit einer Ventileinrichtung zur Fluidversorgung fluidischer Verbraucher, die mehrere Ventilmodule aufweist; die Ventilmodule umfassen jeweils einen Kanalkörper, der eine zur Verbindung mit einer Fluidquelle ausgebildete Speisekanalausnehmung, zwei zur Ankopplung fluidischer Verbraucher vorgesehene Arbeitskanäle und eine zur Entlüftung von fluidischen Verbrauchern dienende Entlüftungskanalausnehmung aufweist, und vier 2/2-Wegeventile, die jeweils einen ersten und einen zweiten Fluidanschluss und ein bewegliches Ventilglied für die Einstellung eines freien Fluidkanalquerschnitts zwischen dem ersten und dem zweiten Fluidanschluss aufweisen, wobei die vier 2/2-Wegeventile der Ventilmodule in einer Vollbrückenanordnung miteinander verschaltet sind, bei der die ersten Fluidanschlüsse des ersten und des zweiten 2/2-Wegeventils mit der Speisekanalausnehmung verbunden sind, der zweite Fluidanschluss des ersten 2/2-Wegeventils und der erste Fluidanschluss des vierten 2/2-Wegeventils mit einem ersten Arbeitskanal verbunden sind, der zweite Fluidanschluss des zweiten 2/2-Wegeventils und der erste Fluidanschluss des dritten 2/2-Wegeventils mit einem zweiten Arbeitskanal verbunden sind und die zweiten Fluidanschlüsse des dritten und des vierten 2/2-Wegeventils mit der Entlüftungskanalausnehmung verbunden sind, und wobei jedes 2/2-Wegeventil zwischen einer Sperrstellung und einer Freigabestellung umschaltbar ist; sowie mit einer Steuereinrichtung zur individuellen Ansteuerung der 2/2-Wegeventile der Ventilmodule, wobei der erste Arbeitskanal und der zweite Arbeitskanal von einem Verbindungskanal kommunizierend verbunden sind und dem Ventilmodul ein von der Steuereinrichtung individuell zwischen einer Sperrstellung und einer Freigabestellung umschaltbares Ventilmittel zur Beeinflussung eines freien Querschnitts des Verbindungskanals zugeordnet ist, um die kommunizierende Verbindung zwischen dem ersten und dem zweiten Arbeitskanal zeitweilig freizugeben.The invention relates to a fluid power system with a valve device for fluid supply fluidic consumers, which has a plurality of valve modules; the valve modules each comprise a channel body having a feed channel recess formed for connection to a fluid source, two working channels provided for coupling fluidic consumers and a vent channel recess for venting fluid consumers, and four 2/2-way valves each having first and second Fluid port and a movable valve member for adjusting a free fluid channel cross-section between the first and second fluid port, wherein the four 2/2-way valves of the valve modules are interconnected in a full bridge arrangement, wherein the first fluid ports of the first and second 2/2 -Wegeventils are connected to the Speisekanalausnehmung, the second fluid port of the first 2/2-way valve and the first fluid port of the fourth 2/2-way valve are connected to a first working channel, the second fluid port of the second 2/2-way valve and the first Fluid port of the third 2/2-way valve are connected to a second working channel and the second fluid ports of the third and the fourth 2/2-way valve are connected to the Entlüftungskanalausnehmung, and wherein each 2/2-way valve between a blocking position and a release position switchable is; and with a control device for the individual control of the 2/2-way valves of the valve modules, wherein the first working channel and the second working channel are communicatively connected by a connecting channel and the valve module one of the control means individually between a blocking position and a release position switchable valve means for influencing a free Assigned cross-section of the connection channel to temporarily release the communicating connection between the first and the second working channel.
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Die Aufgabe der Erfindung besteht darin, ein fluidtechnisches System bereitzustellen, das eine verbesserte Effizienz bei der Nutzung von Fluiden, insbesondere bei Verwendung mit einem fluidischen Antriebssystem aufweist.The object of the invention is to provide a fluid power system which has an improved efficiency in the use of fluids, in particular when used with a fluidic drive system.
Diese Aufgabe wird für ein fluidtechnisches System der eingangs genannten Art mit den Merkmalen des Anspruchs 1 gelöst. Dabei ist vorgesehen, dass der Verbindungskanal in einer Kanaleinheit ausgebildet ist, die zwei zur kommunizierenden Verbindung mit den Arbeitskanälen vorgesehene Fluidkanäle aufweist und die zur Anbringung der Anschlussfläche des Ventilmoduls vorgesehen ist. Mit der zeitweiligen Freigabe des Verbindungskanals mit Hilfe des Ventilmittels kann ein Fluidaustausch zwischen den beiden Arbeitskanälen bewirkt werden, ohne dass hierzu die 2/2-Wegeventile der Vollbrückenschaltung, die jeweils die Verbindung zu einem Speisekanal oder einem Entlüftungskanal freigeben, aktiviert werden müssen. Somit kann das Fluid ohne zusätzliche Fluidzufuhr oder Fluidverluste zwischen den beiden Arbeitskanälen ausgetauscht werden, wodurch der Funktionsumfang der Ventilmodule erweitert wird.This object is achieved for a fluid power system of the type mentioned with the features of
Mit Hilfe des Zusatzmoduls können die in den Arbeitskanälen des Ventilmoduls bereitgestellten Fluidströme je nach Einstellung des Ventilmittels getrennt voneinander geführt oder miteinander vermischt werden. Durch die separate Ausbildung des Zusatzmoduls, das die Kanaleinheit und das Ventilmittel umfasst, kann das Zusatzmodul in kompakter Bauweise bei Bedarf an das jeweilige Ventilmodul montiert und zusammen mit diesem in der Ventileinrichtung verbaut werden. Vorteilhaft ist es, wenn das Ventilmittel auf die Kanaleinheit aufgesetzt ist, da hierdurch eine konstruktiv einfache Gestaltung der Kanaleinheit realisiert werden kann. Die Ventilmodule werden mit einander zugewandten Fügeflächen längs einer stapelrichtung aneinander gereiht und bilden dabei die Ventileinrichtung. Die Arbeitskanäle der Ventilmodule münden an einer Anschlussfläche aus, die senkrecht zur Stapelrichtung und senkrecht zur Fügefläche ausgerichtet ist. Die Kanaleinheit ist zur Anlage an der Anschlussfläche vorgesehen, wobei die Fluidkanäle der Kanaleinheit in Überdeckung mit den Arbeitskanälen des Kanalkörpers gebracht werden können.With the help of the additional module provided in the working channels of the valve module fluid flows can be performed separately or mixed together depending on the setting of the valve means. Due to the separate design of the additional module comprising the channel unit and the valve means, the additional module can be mounted in a compact design as needed to the respective valve module and installed together with this in the valve device. It is advantageous if the valve means is placed on the channel unit, as a structurally simple design of the channel unit can be realized thereby. The valve modules are lined up with mutually facing joining surfaces along a stacking direction and thereby form the valve device. The working channels of the valve modules open at a connection surface, which is aligned perpendicular to the stacking direction and perpendicular to the joining surface. The channel unit is provided for engagement with the pad, the Fluid channels of the channel unit can be brought into coincidence with the working channels of the channel body.
Vorteilhafte Weiterbildungen der Erfindung sind in den Unteransprüchen angegeben. Ohne abweichenden Hinweis ist der Ausdruck "ein" im Sinne von "wenigstens ein" zu verstehen.Advantageous developments of the invention are specified in the subclaims. Unless otherwise stated, the term "a" is to be understood as meaning "at least one".
Besonders zweckmäßig ist es, wenn das Zusatzmodul für eine Aneinanderreihung in einer Montagerichtung parallel zur Flächennormalen der Anschlussfläche des Ventilmoduls oder an ein weiteres Zusatzmodul ausgebildet ist, um eine Zusatzmodulanordnung zu bilden. Dadurch ist gewährleistet, dass an einem oder an mehreren Ventilmodulen angeordnete Zusatzmodule die Stapelung der Ventilmodule zur Ventileinrichtung nicht behindern. Zudem wird dadurch in einfacher Weise eine kommunizierende Verbindung zwischen dem dem jeweiligen Ventilmodul zugeordneten Zusatzmodul und den an der Anschlussfläche ausmündenden Arbeitskanälen des Ventilmoduls gewährleistet. Zudem ist vorteilhaft, dass in der Montagrichtung mehrere Zusatzmodule aneinandergereiht an einem Ventilmodul angebracht werden können, womit der Funktionsumfang des Ventilmoduls durch mehrere Zusatzfunktionen erweitert werden kann, ohne die Stapelung der Ventilmodule zur Ventileinrichtung zu behindern.It is particularly expedient for the additional module to be arranged in a mounting direction parallel to the surface normal of the connection surface of the valve module or to another additional module for a sequence in order to form an additional module arrangement. This ensures that arranged on one or more valve modules additional modules do not hinder the stacking of the valve modules to the valve device. In addition, a communicating connection between the additional module associated with the respective valve module and the working channels of the valve module opening out at the connection surface is thereby ensured in a simple manner. In addition, it is advantageous that in the mounting direction several additional modules strung together can be attached to a valve module, whereby the functional scope of the valve module can be extended by a plurality of additional functions without hindering the stacking of the valve modules to the valve device.
Vorteilhaft ist es, wenn das Ventilmittel als 2/2-Wegeventil ausgebildet ist. Ein derartig ausgebildetes Ventilmittel kann den gleichen Aufbau wie die 2/2-Wegeventile des Ventilmoduls aufweisen, vorzugsweise identisch zu den 2/2-Wegeventilen des Ventilmoduls sein. Hierdurch lassen sich Vorteile bei den Herstellungskosten für die Ventileinrichtung sowie bei der Gestaltung der Steuereinrichtung erzielen, da diese ausschließlich für die Ansteuerung von 2/2-Wegeventilen ausgebildet werden kann.It is advantageous if the valve means is designed as a 2/2-way valve. Such a trained valve means may have the same structure as the 2/2-way valves of the valve module, preferably be identical to the 2/2-way valves of the valve module. As a result, advantages in the manufacturing costs for the valve device and in the design of the control device can be achieved, since this can be formed exclusively for the control of 2/2-way valves.
Zweckmäßig ist es, wenn die Steuereinrichtung für eine intermittierende Ansteuerung der 2/2-Wegeventile der Ventilmodule und des Ventilmittels in der Art von Stetigventilen, insbesondere durch Anwendung eines Pulsweitenmodulationsverfahrens, ausgebildet ist. Die 2/2-Wegeventile sind vorzugsweise als Schaltventile ausgebildet, die bei Ansteuerung durch die Steuereinrichtung von einem Schaltzustand, beispielsweise der Sperrstellung, in einen anderen Schaltzustand, beispielsweise die Freigabestellung, umgeschaltet werden können. Eine Steuerung oder Regelung eines Fluidvolumenstroms durch das jeweilige 2/2-Wegeventil wird durch ein rasches Umschalten zwischen den beiden Schaltzuständen erreicht. Durch Variation der Frequenz der Schaltsignale für das 2/2-Wegeventil und/oder der Einschaltdauer des 2/2-Wegeventils kann ein Schaltverhalten für den Fluidstrom erreicht werden, das zumindest nahezu dem Schaltverhalten eines Stetigventils oder Proportionalventils entspricht. Beispielsweise findet eine Ansteuerung der 2/2-Wegeventile des Ventilmoduls und/oder des Ventilmittels durch Pulsweitenmodulation statt. Hierbei wird das Verhältnis zwischen Einschaltdauer und Ausschaltdauer (Tastverhältnis) bei konstanter Schaltfrequenz variiert, um den Fluidvolumenstrom durch das 2/2-Wegeventil oder das Ventilmittel dem Bedarf anzupassen.It is expedient if the control device for an intermittent control of the 2/2-way valves of the valve modules and the valve means in the manner of continuous valves, in particular by application of a pulse width modulation method is formed. The 2/2-way valves are preferably designed as switching valves, which can be switched when actuated by the control device from a switching state, for example, the blocking position, in another switching state, for example, the release position. A control or regulation of a fluid volume flow through the respective 2/2-way valve is achieved by a rapid switching between the two switching states. By varying the frequency of the switching signals for the 2/2-way valve and / or the duty cycle of the 2/2-way valve, a switching behavior for the fluid flow can be achieved, which corresponds at least almost to the switching behavior of a continuous valve or proportional valve. For example, a control of the 2/2-way valves of the valve module and / or the valve means by pulse width modulation takes place. Here, the ratio between the duty cycle and off duration (duty cycle) is varied at a constant switching frequency to adjust the fluid flow through the 2/2-way valve or the valve means the need.
Bei einer Ausgestaltung der Erfindung ist vorgesehen, dass an und/oder in dem Verbindungskanal eine Detektionseinrichtung, insbesondere ein Drucksensor und/oder ein Durchflusssensor und/oder ein Temperatursensor und/oder ein Feuchtigkeitssensor zur Ermittlung eines elektrischen Messsignals in Abhängigkeit von dem im Verbindungskanal strömenden Fluid angeordnet ist, die elektrisch mit der Steuereinrichtung gekoppelt ist. Je nach Art der Detektionseinrichtung steht ein Sensor in unmittelbarem Kontakt mit dem Fluidstrom, beispielsweise ein Feuchtigkeitssensor oder ein Temperatursensor, oder der Sensor ist an einer Wandung des Verbindungskanals abseits des strömenden Fluids angeordnet, beispielsweise ein Durchflusssensor. Mit der Detektionseinrichtung können ein oder mehrere Parameter des strömenden Fluids ermittelt werden und als elektrische Signale an die Steuereinrichtung übermittelt werden.In one embodiment of the invention, provision is made for a detection device, in particular a pressure sensor and / or a flow sensor and / or a temperature sensor and / or a moisture sensor, to determine an electrical measurement signal as a function of the fluid flowing in the connection channel is arranged, which is electrically coupled to the control device. Depending on the type of detection device is a sensor in direct contact with the fluid stream, for example a moisture sensor or a temperature sensor, or the sensor is arranged on a wall of the connecting channel away from the flowing fluid, for example a flow sensor. With the detection device, one or more parameters of the flowing fluid can be determined and transmitted as electrical signals to the control device.
Vorzugsweise ist die Steuereinrichtung derart zur Ansteuerung der 2/2-Wegeventile und des Ventilmittels eingerichtet, dass eine zeitweilige Freigabe der kommunizierenden Verbindung zwischen dem ersten und dem zweiten Arbeitskanal in Abhängigkeit von einem Betriebszustand einer mit dem Arbeitskanal gekoppelten fluidischen Komponente und/oder in Abhängigkeit von einem elektrischen Messsignal einer Detektionseinrichtung vorgebbar ist. Hierdurch ist ein zumindest im Wesentlichen verlustfreier Fluidaustausch zwischen den beiden Arbeitskanälen möglich, der eine effizientere Ausnutzung der im Fluid gespeicherten Energie ermöglicht.Preferably, the control device is configured to control the 2/2-way valves and the valve means such that a temporary release of the communicating connection between the first and the second working channel in dependence on an operating state of a coupled to the working channel fluidic component and / or in dependence an electrical measurement signal of a detection device can be predetermined. As a result, an at least substantially loss-free fluid exchange between the two working channels is possible, which enables more efficient utilization of the energy stored in the fluid.
Bei einer weiteren Ausgestaltung der Erfindung ist vorgesehen, dass eine erste Antriebskammer einer fluidischen Antriebseinrichtung, insbesondere eines Fluidzylinders, mit dem ersten Arbeitskanal und eine zweite Antriebskammer der fluidischen Antriebseinrichtung mit dem zweiten Arbeitskanal kommunizierend verbunden sind, und dass die Antriebskammern von einem linearbeweglichen Antriebselement voneinander getrennt sind. Beispielsweise kann es sich bei der fluidischen Antriebseinrichtung um einen Pneumatikzylinder handeln, bei dem ein als Arbeitselement dienender, linearbeweglicher Kolben einen Zylinderraum in eine erste und eine zweite größenvariable Antriebskammer unterteilt. Mittels der erfindungsgemäßen Kombination der Vollbrückenschaltung mit dem die Arbeitskanäle verbindenden Verbindungskanal, der vom Ventilmittel freigebbar ist, kann die fluidische Antriebseinrichtung nicht nur in der Art eines Motors betrieben werden, der fluidische Energie in Bewegungsenergie umsetzt, sondern auch in der Art eines fluidischen Generators, bei dem Bewegungsenergie in fluidische Energie umgesetzt wird. Hierdurch können je nach Einsatzgebiet der fluidischen Antriebseinrichtungen signifikante Einsparungen im Hinblick auf den Fluidverbrauch erzielt werden.In a further embodiment of the invention, it is provided that a first drive chamber of a fluidic drive device, in particular a fluid cylinder, communicating with the first working channel and a second drive chamber of the fluidic drive device to the second working channel, and that the drive chambers separated from each other by a linearly movable drive element are. For example, the fluidic drive device may be a pneumatic cylinder in which a linearly movable piston serving as a working element divides a cylinder space into a first and a second size-variable drive chamber. By means of the inventive combination of the full bridge circuit with the working channels connecting fluid channel, which is releasable from the valve means, the fluidic drive device can be operated not only in the manner of a motor that converts fluid energy into kinetic energy, but also in the manner of a fluidic generator in which kinetic energy is converted into fluidic energy. As a result, depending on the field of application of the fluidic drive devices, significant savings in terms of fluid consumption can be achieved.
Vorteilhaft ist es, wenn die Steuereinrichtung derart zur Ansteuerung der 2/2-Wegeventile und des Ventilmittels eingerichtet ist, dass eine Belüftung oder Entlüftung der ersten Antriebskammer unabhängig von einer Entlüftung oder Belüftung der zweiten Antriebskammer vorgebbar ist. Die angestrebte effizientere Nutzung des Fluids kann beispielsweise dadurch erfolgen, dass eine Druckentlastung, insbesondere Entlüftung, der druckbeaufschlagten Antriebskammer zeitlich vor einer Druckbeaufschlagung der anderen Antriebskammer erfolgt. Die Bewegung der fluidischen Antriebseinrichtung kann in diesem Fall mit geringerem Fluiddruck und/oder höherer Bewegungsgeschwindigkeit der Antriebseinrichtung erfolgen, da weniger Fluidvolumen aus der bis dahin druckbeaufschlagten Antriebskammer verdrängt werden muss.It is advantageous if the control device is set up to control the 2/2-way valves and the valve means such that ventilation or venting of the first drive chamber can be predetermined independently of venting or ventilation of the second drive chamber. The desired more efficient use of the fluid can be effected, for example, by relieving the pressure, in particular venting, of the pressurized drive chamber prior to pressurization of the other drive chamber. In this case, the movement of the fluidic drive device can take place with a lower fluid pressure and / or a higher speed of movement of the drive device, since less fluid volume has to be displaced from the drive chamber pressurized up to that point.
Vorzugsweise ist die Steuereinrichtung derart zur Ansteuerung der 2/2-Wegeventile und des Ventilmittels eingerichtet, dass bei Annäherung eines in den Antriebskammern beweglich aufgenommenen Antriebselements an eine durch minimales Volumen der jeweiligen Antriebskammer bestimmten Endlage ein zumindest teilweiser Druckausgleich zwischen den Antriebskammern vorgebbar ist, um eine zumindest teilweise Umwandlung der Bewegungsenergie des Antriebselements in Fluiddruck eines Arbeitsfluids zu ermöglichen. Hierdurch kann mit geringem Aufwand eine sanfte Abbremsung der fluidischen Antriebseinrichtung vor dem Erreichen einer mechanisch bedingten Endlage bewirkt werden. Vor Erreichen der Endlage wird beispielsweise sowohl die Druckversorgung der einen Antriebskammer als auch die Druckentlastung der anderen Antriebskammer, die jeweils über das Ventilmodul erfolgt, abgeschaltet bzw. abgesperrt. Um ein zu rasches Abbremsen oder gar eine Bewegungsumkehr der fluidischen Antriebseinrichtung zu vermeiden, das sich aufgrund der Komprimierung des Fluids in der sich aufgrund der Bewegung des Antriebselements verkleinernden Antriebskammer ohne weitere Maßnahmen einstellen würde, findet zunächst aufgrund der Absperrung der Druckentlastung eine Druckerhöhung in der Antriebskammer statt, die sich durch die Bewegung des Antriebselements verkleinert. Zeitgleich findet in der anderen Antriebskammer, die sich aufgrund der Bewegung des Antriebselements vergrößert, ein Druckabfall statt. Durch die sinkende Druckdifferenz zwischen den beiden Arbeitskammern und den Druckaufbau in der einen Arbeitskammer reduziert sich die Geschwindigkeit des Antriebselements. Mit einem gezielten Druckausgleich zwischen den beiden Antriebskammern durch zeitweilige Freigabe des Verbindungskanals wird die Druckdifferenz zwischen den beiden Antriebskammern zusätzlich reduziert und zumindest ein Teil der Bewegungsenergie des Antriebselements in einen erhöhten Fluiddruck des als Arbeitsfluids dienenden Fluids gewandelt. Zudem findet dadurch die gewünschte Verringerung der Bewegungsgeschwindigkeit der fluidischen Antriebseinrichtung statt. Durch diese Maßnahmen kann einerseits der Fluiddruck in den Antriebskammern auf einem vorgebbaren Niveau gehalten werden, was bei einer neuerlichen Bewegung des Antriebselements zu Einsparungen hinsichtlich des Fluidverbrauchs führt. Andererseits können hierdurch konstruktive Maßnahmen in der fluidischen Antriebseinrichtung zur Gewährleistung einer Endlagendämpfung vereinfacht werden oder es kann vollständig auf eine Endlagendämpfung verzichtet werden.Preferably, the control device is configured to control the 2/2-way valves and the valve means, that at least partially equalized pressure between the drive chambers can be predetermined when approaching a drive element movably received in the drive chambers to an end position determined by the minimum volume of the respective drive chamber at least partially to allow conversion of the kinetic energy of the drive element in fluid pressure of a working fluid. This can be done with low Expense a gentle deceleration of the fluidic drive device can be effected before reaching a mechanically induced end position. Before reaching the end position, for example, both the pressure supply of a drive chamber and the pressure relief of the other drive chamber, which takes place via the valve module, switched off or shut off. In order to avoid a too rapid deceleration or even a reversal of motion of the fluidic drive device, which would be due to the compression of the fluid in the decreasing due to the movement of the drive element drive chamber without further measures, initially finds due to the blocking of the pressure relief, a pressure increase in the drive chamber instead, which is reduced by the movement of the drive element. At the same time takes place in the other drive chamber, which increases due to the movement of the drive element, a pressure drop instead. Due to the falling pressure difference between the two working chambers and the pressure build-up in the one working chamber reduces the speed of the drive element. With a targeted pressure equalization between the two drive chambers by temporarily releasing the connecting channel, the pressure difference between the two drive chambers is additionally reduced and converted at least a portion of the kinetic energy of the drive element in an increased fluid pressure of the fluid serving as the working fluid. In addition, this results in the desired reduction of the movement speed of the fluidic drive device. By these measures, on the one hand, the fluid pressure in the drive chambers can be maintained at a predeterminable level, which leads to savings in terms of fluid consumption in a renewed movement of the drive element. On the other hand, this constructive measures in the fluidic drive device to ensure a cushioning be simplified or it can be completely dispensed with a cushioning.
Bei einer vorteilhaften Ausgestaltung der Erfindung ist vorgesehen, dass die Steuereinrichtung derart zur Ansteuerung der 2/2-Wegeventile und des Ventilmittels eingerichtet ist, dass eine Druckdifferenz zwischen der ersten und der zweiten Antriebskammer der fluidischen Arbeitseinrichtung während einer Bewegung des Antriebselements als konstant vorgebbar ist. Hierdurch wird vermieden, dass es aufgrund von großen Druckdifferenzen zu einer zu raschen Bewegung der fluidischen Antriebseinrichtung kommt, die dann wieder abgebremst werden muss. Zudem wird erreicht, dass die fluidische Antriebseinrichtung bei Verwendung eines kompressiblen Fluids, insbesondere Druckluft, aufgrund des erhöhten Druckniveaus in beiden Antriebskammern eine höhere Steifigkeit aufweist und somit durch äußere Krafteinwirkung weniger stark aus einer vorgebbaren Position ausgelenkt wird.In an advantageous embodiment of the invention, it is provided that the control device is configured for controlling the 2/2-way valves and the valve means, that a pressure difference between the first and the second drive chamber of the fluidic working device during a movement of the drive element can be specified as constant. This avoids that due to large differences in pressure too fast movement of the fluidic drive device comes, which then has to be braked again. In addition, it is achieved that the fluidic drive device when using a compressible fluid, in particular compressed air, due to the increased pressure level in both drive chambers has a higher rigidity and thus less strongly deflected by external force from a predetermined position.
Bevorzugt ist die Steuereinrichtung derart zur Ansteuerung der 2/2-Wegeventile und des Ventilmittels eingerichtet, dass während einer Bewegung des Antriebselements durch, insbesondere intermittierende, Ansteuerung des Ventilmittels, ein Druckausgleich zwischen der durch die Bewegung des Antriebselements verkleinerten Antriebskammer und der durch die Bewegung des Antriebselements vergrößerten Antriebskammer der fluidischen Arbeitseinrichtung vorgebbar ist. Hierdurch kann die fluidische Antriebseinrichtung beispielsweise als Generator eingesetzt werden, bei dem die Bewegungsenergie des Antriebselements für die Druckbeaufschlagung, insbesondere Kompression, von Fluid verwendet wird. Mit dem druckbeaufschlagten, insbesondere komprimierten, Fluid kann beispielsweise eine Befüllung eines Druckspeichers oder ein Druckausgleich zwischen den Antriebskammern der fluidischen Antriebsrichtung vorgenommen werden.Preferably, the control device is configured for controlling the 2/2-way valves and the valve means, that during a movement of the drive element by, in particular intermittent, control of the valve means, a pressure equalization between the reduced by the movement of the drive member drive chamber and by the movement of the Drive element enlarged drive chamber of the fluidic working device can be predetermined. As a result, the fluidic drive device can be used, for example, as a generator, in which the kinetic energy of the drive element for the pressurization, in particular compression, of fluid is used. With the pressurized, in particular compressed, fluid, for example, a filling of a pressure accumulator or a Pressure equalization between the drive chambers of the fluidic drive direction can be made.
In weiterer Ausgestaltung der Erfindung ist vorgesehen, dass die 2/2-Wegeventile als Ventileinheiten ausgebildet sind, bei denen das Betätigungsmittel mit einem Ventilabschnitt eine kompakte Einheit bildet, die auf die Bestückungsfläche des Kanalkörpers bzw. der Kanaleinheit aufgesetzt ist, wobei der Ventilabschnitt den ersten und den zweiten Fluidanschluss sowie einen Ventilsitz umfasst, gegenüber dem das Ventilglied beweglich angeordnet ist, um den freien Fluidkanalquerschnitt zwischen dem ersten und dem zweiten Fluidanschluss zwischen einer Sperrstellung und einer Freigabestellung zu beeinflussen. Bei dieser Ausführungsform der Erfindung sind die 2/2-Wegeventile vollständig außerhalb des Kanalkörpers ausgebildet und sind als kompakte Einheiten auf die Bestückungsfläche des Kanalkörpers aufgesetzt. Hierdurch wird einerseits der Aufbau des Kanalkörpers vereinfacht, da keine Vorkehrungen zur Ausbildung eines Ventilsitzes oder zur Aufnahme und Lagerung von Ventilelementen getroffen werden müssen. Andererseits wird hierdurch eine vorteilhafte Auswechselbarkeit der 2/2-Wegeventile im Schadensfall gewährleistet, da die Ventileinheiten als Gesamtbaugruppe abmontiert und ersetzt werden können.In a further embodiment of the invention, it is provided that the 2/2-way valves are formed as valve units, wherein the actuating means forms a compact unit with a valve portion, which is placed on the mounting surface of the channel body or the channel unit, wherein the valve portion of the first and the second fluid port and a valve seat against which the valve member is movably arranged to affect the free fluid channel cross-section between the first and second fluid ports between a blocking position and a release position. In this embodiment of the invention, the 2/2-way valves are formed completely outside the channel body and are mounted as compact units on the mounting surface of the channel body. As a result, on the one hand, the structure of the channel body is simplified because no provision must be made to form a valve seat or for receiving and storing valve elements. On the other hand, this ensures an advantageous interchangeability of the 2/2-way valves in the event of damage, since the valve units can be removed and replaced as a complete assembly.
Die 2/2-Wegeventile umfassen neben dem elektrisch ansteuerbaren Betätigungsmittel den Ventilabschnitt, der der Fluidführung dient. Der Ventilabschnitt weist einen Fluidkanal auf, der an einer Außenoberfläche in zwei voneinander beabstandete Fluidanschlüsse ausmündet. Im Fluidkanal ist ein Ventilsitz ausgebildet, der eine abdichtende Anlage des Ventilglieds zur Sperrung des freien Querschnitts des Fluidkanals ermöglicht. Das Ventilglied kann durch eine vom Betätigungsmittel ausgehende Krafteinwirkung derart beeinflusst werden, dass dieses entweder die Sperrstellung oder die Freigabestellung einnimmt. Die Außenoberfläche des Ventilabschnitts, in der die Fluidanschlüsse ausmünden, ist zur flächigen, abdichtenden Anlage an der Bestückungsfläche des Kanalkörpers vorgesehen. Die Fluidanschlüsse sind für kommunizierende Verbindungen mit Fluidkanälen im Kanalkörper vorgesehen.The 2/2-way valves comprise in addition to the electrically controllable actuating means the valve portion which serves the fluid guide. The valve portion has a fluid channel, which opens at an outer surface into two spaced-apart fluid ports. In the fluid channel, a valve seat is formed, which allows a sealing engagement of the valve member to block the free cross section of the fluid channel. The valve member can be influenced by a force exerted by the actuating means such force be that this occupies either the blocking position or the release position. The outer surface of the valve portion, in which the fluid ports open out, is provided for flat sealing engagement with the mounting surface of the channel body. The fluid connections are provided for communicating connections with fluid channels in the channel body.
Die vier Ventileinheiten des Ventilmoduls sind alle in identischer Weise aufgebaut und sind jeweils mit diskreten, beispielsweise als Schrauben ausgebildeten, Befestigungsmitteln am Kanalkörper befestigt. Durch den identischen Aufbau der Ventileinheiten und die individuelle Befestigung am Kanalköper wird ein Austausch einzelner Ventileinheiten im Schadensfall erleichtert.The four valve units of the valve module are all constructed in an identical manner and are each attached to the channel body with discrete fasteners, for example screws. The identical construction of the valve units and the individual attachment to the channel body facilitates the replacement of individual valve units in the event of damage.
Eine vorteilhafte Ausführungsform der Erfindung ist in der Zeichnung dargestellt. Dabei zeigt:
Figur 1- eine perspektivische Darstellung eines fluidtechnischen Systems mit einer Ventileinrichtung,
Figur 2- ein pneumatisches Ersatzschaltbild für das fluidtechnische
System gemäß Figur 1 und - Figur 3
- ein schematisches Diagramm
mit Schaltstellungen von 2/2-Wegeventilen und Druckverläufen in den beiden Arbeitskanälen.
- FIG. 1
- a perspective view of a fluid power system with a valve device,
- FIG. 2
- a pneumatic equivalent circuit diagram for the fluid power system according to
FIG. 1 and - FIG. 3
- a schematic diagram with switching positions of 2/2-way valves and pressure gradients in the two working channels.
Ein in der
Die Ventileinrichtung 1 umfasst mehrere, exemplarisch scheibenartig ausgebildete, Ventilmodule 2, die in einer Stapelrichtung 3 aneinander aufgereiht sind. Die Ventilmodule 2 sind zwischen einem Basiselement 4 und einer Abschlussplatte 5 angeordnet, die die Ventileinrichtung 1 längs der Stapelrichtung 3 jeweils endseitig begrenzen.The
Einigen der Ventilmodule 2 sind Zusatzmodule 6, 7 zugeordnet, die beispielsweise als Ventilelemente oder Sensorelemente ausgebildet sind. Die Zusatzmodule 6, 7 sind, wie dies aus der
Das Basiselement 4 ist vorliegend quaderförmig ausgebildet und weist an einer Stirnfläche 8, deren Flächennormale orthogonal zur Stapelrichtung 3 ausgerichtet ist, eine Speiseöffnung 9 zum Anschluss eines nicht dargestellten Fluidleiters auf, über den druckbeaufschlagtes oder unterdruckbeaufschlagtes Fluid bereitgestellt werden kann. Das Basiselement 4 weist weiterhin eine Entlüftungsöffnung 10 auf, die beispielsweise als Austritt für Fluid dienen kann, das bereits die Ventileinrichtung 1 und die nicht dargestellten fluidischen Verbraucher durchströmt hat. Bei Einsatz der Ventileinrichtung 1 zur Steuerung und/oder Regelung von Gasströmen, insbesondere von Druckluftströmen, kann an der Entlüftungsöffnung 10 des Basiselements 4 ein nicht dargestellter Schalldämpfer angeordnet werden.In the present case, the base element 4 is cuboid-shaped and has a
Bei der dargestellten Ausführungsform der Ventileinrichtung 1 sind an das Basiselement 4 in Stapelrichtung 3 mehrere Ventilmodule 2 aufgereiht, die alle den gleichen Aufbau aufweisen. Den Ventilmodulen 2 kommt die Aufgabe zu, das über das Basiselement 4 bereitgestellte Fluid in der gewünschten Weise an die nicht dargestellten fluidischen Verbraucher abzugeben und gegebenenfalls von fluidischen Verbrauchern zurückströmendes Fluid wieder zum Basiselement 4 zurückzuführen.In the illustrated embodiment of the valve device 1 a plurality of
Jedes der Ventilmodule 2 umfasst einen plattenförmig ausgebildeten Kanalkörper 11 und auf den Kanalkörper 11 aufgesetzte, gleichförmig ausgebildete Ventileinheiten 12. Die Ventileinheiten 12 des Ventilmoduls 2 sind mit einer Abdeckleiste 13 versehen, die beispielsweise zur Geräuschdämmung und/oder zur Abschirmung der Ventileinheiten 12 vor Umwelteinflüssen, insbesondere Verschmutzungen, und/oder zur elektrischen Kontaktierung der Ventileinheiten 12 ausgebildet sein kann. Die Ventileinheit 12 des Zusatzmoduls 6 ist mit einer Abdeckhaube 14 versehen, die die gleiche Funktionalität für die einzelne Ventileinheit 12 wie die Abdeckleiste 13 für die mehreren Ventileinheiten 12 des Ventilmoduls 2 verwirklicht.Each of the
Der plattenförmige Kanalkörper 11, der beispielsweise eine kubische Außengeometrie aufweisen kann, weist zwei einander entgegengesetzte Fügeflächen auf, deren nicht dargestellte Flächennormalen parallel zur Stapelrichtung 3 ausgerichtet sind. Von den zu den Fügeflächen orthogonal ausgerichteten Schmalseiten des Kanalkörpers 11, deren nicht dargestellte Flächennormalen senkrecht zur Stapelrichtung 3 verlaufen, dient eine kürzere Schmalseite als Anschlussfläche 17 und eine längere Schmalseite als Bestückungsfläche 18.The plate-shaped
Bei dem Ventilmodul 2 münden an der Anschlussfläche 17 Anschlussöffnungen 19, 20 eines ersten und eines zweiten Arbeitskanals 21, 22 aus. Der erste Arbeitskanal 21 stellt eine kommunizierende Verbindung zwischen einem an der Anschlussöffnung 20 anschließbaren fluidischen Verbraucher und dem ersten 2/2-Wegeventil 41 sowie dem vierten 2/2-Wegeventil 46 bereit. Der zweite Arbeitskanal 22 ist für eine kommunizierende Verbindung zwischen der Anschlussöffnung 19 und dem zweiten 2/2-Wegeventil 42 sowie dem dritten 2/2-Wegeventil 45 vorgesehen.In the
Wie der schematischen Darstellung der
Bei der in
Die beiden Antriebskammern 116, 117 werden durch ein linearbewegliches, beispielsweise als Fluidkolben ausgeführtes, Antriebselement 118 voneinander getrennt und sind aufgrund der Verschiebbarkeit des Antriebselements 118 größenvariabel. Das Antriebselement 118 ist mit einem exemplarisch als Kolbenstange ausgebildeten Betätigungsmittel 119 gekoppelt, das eine Bewegungsübertragung vom Antriebselement 118 an einen nicht dargestellten Körper, beispielsweise ein Maschinenelement, ermöglicht. Jeweils endseitig an einem Außenumfang der Antriebskammern 116, 117 ist ein Positionssensor 120, 121 angebracht, der eine Annäherung des Antriebselements 118 an die jeweilige Stirnfläche 122, 123 der Antriebskammer 116 bzw. 117 ermitteln kann und daraufhin ein elektrisches Signal bereitstellt.The two drive
Die Positionssensoren 120, 121 sind ebenso wie die 2/2-Wegeventile 41, 42, 45, 46 des Ventilmoduls 2 und das Zusatzmodul 6, das ein 2/2-Wegeventil 124 und zwei Detektionseinrichtungen 125, 126 umfasst, mittels gestrichelt dargestellter und nicht näher bezeichneter Verbindungsleitungen mit einer Steuereinrichtung 127 verbunden. Die Steuereinrichtung 127 ist zur Verarbeitung von Messsignalen, die insbesondere von den Detektionseinrichtungen 125, 126, bei geeigneter Auslegung auch von den 2/2-Wegeventilen 41, 42, 45, 46, 124 sowie von den Positionssensoren 120, 121 bereitgestellt werden können, eingerichtet. Darüber hinaus ist die Steuereinrichtung 127 für die Bereitstellung von elektrischen Steuersignalen oder elektrischer Steuerenergie zur Betätigung der 2/2-Wegeventile 41, 42, 45, 46, 124 eingerichtet. Mit Hilfe der Steuereinrichtung können in nicht näher dargestellter Weise eine Vielzahl von Ventilmodulen 2 und gegebenenfalls damit gekoppelten Zusatzmodulen 6, 7 angesteuert werden. Die Ansteuerung kann sowohl als Steuerung (open loop), insbesondere als Zeitsteuerung, oder als Regelung (closed loop) unter Einbeziehung eines oder mehrerer Messsignale erfolgen.The
Die Steuereinrichtung 127 kann beispielsweise derart eingerichtet sein, dass sie das Ventilmodul 2 und das Zusatzmodul 6 derart ansteuern kann, dass die Antriebskammern 116, 117 der fluidischen Antriebseinrichtung 115 derart mit Fluid beaufschlagt werden, dass das Antriebselement 118 und das damit gekoppelte Betätigungselement 119 eine Linearbewegung in Richtung der Längsachse des Betätigungselements 119 ausführt.The
Hierzu können die 2/2-Wegeventile 41, 42, 45, 46 und das 2/2-Wegeventil 124 des Zusatzmoduls 6 in der in
Im Schritt I findet eine Druckbeaufschlagung der ersten Antriebskammer 116 statt, indem das erste 2/2-Wegeventil 41 angesteuert wird. Aufgrund der Drosselverluste in den Zuleitungen zwischen Fluidquelle und Antriebskammer 116 findet kein sprunghafter, sondern lediglich ein rascher Druckanstieg am Arbeitskanal 21 und damit in der ersten Antriebskammer 116 statt. Gleichzeitig findet eine Druckentlastung der zweiten Antriebskammer 117 statt, die exemplarisch aus einem vorausgegangenen Bewegungsschritt noch druckbeaufschlagt ist, indem das dritte 2/2-Wegeventil 45 angesteuert wird und somit die Verbindung zwischen der zweiten Antriebskammer 117 und dem Entlüftungsabschnitt 36 freigegeben wird. Hierdurch baut sich ein Differenzdruck zwischen den beiden Antriebskammern 116, 117 auf, der eine Beschleunigung des Antriebselements 118 in Richtung der Antriebskammer 117 bewirkt, deren Volumen sich dadurch verkleinert.In step I, a pressurization of the
Im Schritt II hat der Druck im Arbeitskanal 21 das Druckniveau des Versorgungsdrucks erreicht, so dass sich im Arbeitskanal 21 und in der zugehörigen Antriebskammer 116 ein stationärer Zustand einstellt. Die erste Antriebskammer 116 wird weiterhin über das erste 2/2-Wegeventil 41 mit druckbeaufschlagtem Fluid versorgt während die zweite Antriebskammer 117 durch intermittierende Ansteuerung des dritten 2/2-Wegeventils 45 zumindest zeitweilig kommunizierend mit dem Entlüftungskanalabschnitt 36 verbunden ist. Durch die Einstellung des Differenzdrucks zwischen den beiden Antriebskammern 116, 117 kann Einfluss auf die Geschwindigkeit des Antriebselements 118 genommen werden.In step II, the pressure in the working
Im Schritt III wird die Zufuhr von druckbeaufschlagtem Fluid an die Antriebskammer 116 durch entsprechende Ansteuerung des 2/2-Wegeventils 41 unterbrochen und das dritte 2/2-Wegeventil 45 in die Sperrstellung gebracht. Aufgrund der Massenträgheit des Antriebselements 118, des Betätigungselements 119 sowie einer gegebenenfalls vom Betätigungselement 119 betätigten Maschinenkomponente behält das Antriebselement 118 seine Bewegung bei, wobei die Geschwindigkeit bedingt durch Reibungseffekte abnimmt. Durch die zunehmende Vergrößerung der ersten Antriebskammer 116 aufgrund der Bewegung des Antriebselements 118 findet eine Reduzierung des Fluiddrucks in der ersten Antriebskammer 116 statt. In der zweiten Antriebskammer 117 findet aufgrund der Ansteuerung des dritten 2/2-Wegeventils 45 in die Sperrstellung ein Druckaufbau statt. Dadurch reduziert sich der Differenzdruck zwischen den Antriebskammern 116 und 117 und die Bewegungsgeschwindigkeit des Antriebselements 118 wird verlangsamt.In step III, the supply of pressurized fluid to the
Im Schritt IV wird auch die kommunizierende Verbindung zwischen der zweiten Antriebskammer 117 und dem Entlüftungskanalabschnitt 36 durch entsprechende Ansteuerung des dritten 2/2-Wegeventils 45 unterbrochen. Gleichzeitig wird das 2/2-Wegeventil 124 des Zusatzmoduls 6 von der Steuereinrichtung 127 angesteuert, wodurch der Verbindungskanal zwischen dem ersten und dem zweiten Arbeitskanal 21, 22 freigegeben wird und ein Druckausgleich zwischen der ersten und der zweiten Antriebskammer 116, 117 erfolgt. Zu Beginn des Druckausgleichs steigt der Druck in der zweiten Antriebskammer 117 aufgrund der hohen Druckdifferenz gegenüber der ersten Antriebskammer 116 rasch an. Mit zunehmendem Druckausgleich nähern sich die Drücke in beiden Antriebskammern 116, 117 auf ein gemeinsames Niveau an. Während der Druckausgleichsphase nimmt die Bewegungsgeschwindigkeit des Antriebselements 118 aufgrund von Reibungseffekten und der abnehmenden Druckdifferenz zwischen den beiden Antriebskammern 116, 117 weiter ab.In step IV, the communicating connection between the
Um eine sanfte Abbremsung des Antriebselements 118 vor Erreichen der Stirnfläche 123 zu bewirken, wird im Schritt V ein Bremsvorgang eingeleitet, indem das 2/2-Wegeventil 124 des Zusatzmoduls 6 intermittierend angesteuert wird, während alle übrigen 2/2-Wegeventile 41, 42, 45, 46 geschlossen sind. Hierdurch findet in der zweiten Antriebskammer 117 aufgrund der Bewegung des Antriebselements 118, die mit einer Verkleinerung der zweiten Antriebskammer 117 einhergeht, eine zeitweilige Druckzunahme statt, solange das 2/2-Wegeventil 124 geschlossen ist. Hierdurch tritt die gewünschte Bremswirkung ein. Durch die intermittierende Ansteuerung des 2/2-Wegeventils 124 wird das druckbeaufschlagte Fluid stoßweise zwischen den beiden Antriebskammern 116 und 117 ausgetauscht, um eine Umkehrbewegung des Antriebselements 118 zu vermeiden. Hierdurch ergibt sich der in der
Da der Fluiddruck aufgrund des Druckausgleichs mittels des 2/2-Wegeventils 124 des Zusatzmoduls 6 in beiden Antriebskammern 116 und 117 auf einem gewissen vorgebbaren Niveau verbleibt, weist die fluidische Antriebseinrichtung 115 eine hohe Steifigkeit gegenüber äußeren Kräften auf. Zudem wird nach Durchführung des Abbremsvorgangs gemäß Schritt VI zur neuerlichen Einleitung einer Bewegung des Antriebselements 118 eine geringere Fluidmenge als bei einer vollständigen Druckentlastung der ersten Antriebskammer 116 benötigt, wie sie bei aus dem Stand der Technik bekannten Ansteuerungen unter Verwendung von Mehrwegeventilen erforderlich ist. Dies ist darauf zurückzuführen, dass beide Antriebskammern 116, 117 noch mit druckbeaufschlagtem Fluid gefüllt sind. Insbesondere bei Verwendung eines kompressiblen Fluids wie Druckluft ist es möglich, eine neuerliche Bewegung des Antriebselements 118, beispielsweise in entgegengesetzer Richtung, dadurch zu erreichen, dass nunmehr ohne weitere Fluidzufuhr lediglich die Arbeitskammer 116 entlüftet wird. Durch die damit auftretende Druckdifferenz zwischen den beiden Antriebskammern 116 und 117 kann sich das Antriebselement 118 in Richtung der Antriebskammer 116 in Bewegung setzen.Since the fluid pressure remains at a certain specifiable level due to the pressure equalization by means of the 2/2-
Claims (11)
- Fluidic system with a valve device (1) for the supply of fluid to fluidic loads (115) and having several valve modules (2); each of the valve modules (2) comprises a passage body (11) which has a feed passage recess (35) designed for connection with a fluid source, two operating passages (21, 22) for the connection of fluidic loads, and a vent passage recess (36) for the venting of fluidic loads, and four 2/2-way valves (41, 42, 45, 46), each having a first and second fluidic port (47, 48, 49, 50, 51, 52, 55, 56) and a movable valve member for the setting of a free fluidic passage cross-section between the first and second fluidic port (47, 48, 49, 50, 51, 52, 55, 56), wherein the four 2/2-way valves (41, 42, 45, 46) of the valve modules (2) are interconnected in a full bridge arrangement in which the first fluidic ports (47, 49) of the first and second 2/2-way valves (41, 42) are connected with the feed passage recess (35), the second fluidic port (48) of the first 2/2-way valve (41) and the first fluidic port (55) of the fourth 2/2-way valve (46) are connected to a first operating passage (21), the second fluidic port (50) of the second 2/2-way valve (42) and the first fluidic port (51) of the third 2/2-way valve (45) are connected to a second operating passage (22), and the second fluidic ports (52, 56) of the third and fourth 2/2-way valves (45, 46) are connected to the vent passage recess (36), and wherein each 2/2-way valve (41, 42, 45, 46) may be switched between a closed position and an open position, and also with a control device (127) for individual activation of the 2/2-way valves (41, 42, 45, 46) of the valve modules (2), wherein the first operating passage (21) and the second operating passage (22) are connected so as to communicate by a connecting passage, and the valve module (2) is assigned valve means (124) switchable individually by the control device (127) between a closed position and an open position to influence a free cross-section of the connecting passage, in order to open intermittently the communicating connection between the first and second operating passages (21, 22), characterised in that the connecting passage is formed in a passage unit which has two fluid passages provided for communicating connection with the operating passages (21, 22) and is provided for attachment to a connection face (17) of the valve module (2).
- Fluidic system according to claim 1, characterised in that the valve means (124) are in the form of a 2/2-way valve.
- Fluidic system according to claim 1 or 2, characterised in that the control device (127) is designed for intermittent activation of the 2/2-way valves (41, 42, 45, 46) of the valve modules (2) and of the valve means (124) in the form of continuously operated valves, in particular using a pulse-width modulation method.
- Fluidic system according to any of the preceding claims, characterised in that there is provided on and/or in the connecting passage a detection device (125, 126), which is electrically connected to the control device (127), in particular a pressure sensor and/or a flow sensor and/or a temperature sensor and/or a moisture sensor to determine an electrical measuring signal based on the fluid flowing in the connecting passage.
- Fluidic system according to any of the preceding claims, characterised in that the control device (127) is set up for activation of the 2/2-way valves (41, 42, 45, 46) and the valve means (124) in such a way that intermittent opening of the communicating connection between the first and second operating passages (21, 22) may be preset, depending on an operating status of a fluidic component (115) connected to the fluidic passage and/or depending on an electrical measuring signal of a detection device (120, 121, 125, 126).
- Fluidic system according to any of the preceding claims, characterised in that a first drive chamber (116) of a fluidic drive unit (115), in particular a fluidic cylinder, is connected to the first operating passage (21), and a second drive chamber (117) of the fluidic drive unit (115) is connected to the second operating passage (22), and that the drive chambers (116, 117) are separated from one another by a drive element (118) capable of linear movement.
- Fluidic system according to claim 6, characterised in that the control device (127) is set up for activation of the 2/2-way valves (41, 42, 45, 46) and the valve means (124) in such a way that it is possible to preset air supply to or venting of the first drive chamber (116) independently of the venting of or supply of air to the second drive chamber (117).
- Fluidic system according to claim 6 or 7, characterised in that the control device (127) is set up for activation of the 2/2-way valves (41, 42, 45, 46) and the valve means (124) in such a way that, on the approach of the drive element (118) to an end position determined by minimal volume of the respective drive chamber (116, 117), at least partial pressure equalisation between the drive chambers (116, 117) may be preset, in order to facilitate at least partial conversion of the movement energy of the drive element (118) into fluidic pressure of an operating fluid.
- Fluidic system according to claims 6, 7 or 8, characterised in that the control device (127) is set up for activation of the 2/2-way valves (41, 42, 45, 46) and the valve means (124) in such a way that a pressure difference between the first and second drive chambers (116, 117) of the fluidic operating device (115) during a movement of the drive element (118) may be preset as constant.
- Fluidic system operating passage any of claims 6 to 9, characterised in that the control device (127) is set up for activation of the 2/2-way valves (41, 42, 45, 46) and the valve means (124) in such a way that, during a movement of the drive element (118), a pressure equalisation between the drive chamber (116, 117) being reduced by the movement of the drive element (118) and the drive chamber (116, 117) of the fluidic operating device (115) being enlarged by the movement of the drive element (118) may be preset by activation, in particular intermittent, of the valve means (124).
- Fluidic system according to any of the preceding claims, characterised in that the 2/2-way valves (41, 42, 45, 46) are in the form of valve units (12) in which the actuation means (76) and a valve section (77) form a compact unit which is fitted to the mounting face (18) of the passage body (11) or the passage unit, wherein the valve section (77) comprises the first and second fluidic ports (47, 48, 49, 50, 51, 52, 55, 56) and a valve seat (89), with respect to which the valve member is movably mounted, in order to control the free fluid passage cross-section between the first and second fluidic ports (47, 48, 49, 50, 51, 52, 55, 56), between a closed position and an open position.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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DE200910017879 DE102009017879A1 (en) | 2009-04-17 | 2009-04-17 | Fluidic system |
PCT/EP2010/001434 WO2010118802A1 (en) | 2009-04-17 | 2010-03-06 | Fluidic system |
Publications (2)
Publication Number | Publication Date |
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EP2419646A1 EP2419646A1 (en) | 2012-02-22 |
EP2419646B1 true EP2419646B1 (en) | 2013-06-05 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP20100708721 Not-in-force EP2419646B1 (en) | 2009-04-17 | 2010-03-06 | Fluidic system |
Country Status (6)
Country | Link |
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US (1) | US20120037251A1 (en) |
EP (1) | EP2419646B1 (en) |
JP (1) | JP2012524216A (en) |
CN (1) | CN102395798B (en) |
DE (1) | DE102009017879A1 (en) |
WO (1) | WO2010118802A1 (en) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2644904B1 (en) | 2012-03-26 | 2014-11-12 | Festo AG & Co. KG | Method for controlling a work system that can be operated using fluid |
EP2664802A1 (en) * | 2012-05-14 | 2013-11-20 | Siemens Aktiengesellschaft | Regulator for regulated adjustment of a hydraulic actuator |
CN103047213A (en) * | 2013-01-11 | 2013-04-17 | 中国矿业大学 | Hydraulic rectifying valve and control method |
US20160040790A1 (en) * | 2013-03-14 | 2016-02-11 | Aerovalve Llc | Safety mechanism for a directional control valve equpped with pneumatic fluid-recycling delay function |
DE102014200469A1 (en) * | 2014-01-14 | 2015-07-16 | Robert Bosch Gmbh | Valve device and method for controlling a consumer |
DE102015121719A1 (en) * | 2015-12-14 | 2017-06-14 | Abb Schweiz Ag | Valve arrangement for the hydraulic control of a piston-cylinder arrangement of a high or medium voltage circuit breaker |
US10256075B2 (en) * | 2016-01-22 | 2019-04-09 | Applied Materials, Inc. | Gas splitting by time average injection into different zones by fast gas valves |
DE102016206822A1 (en) | 2016-04-21 | 2017-10-26 | Festo Ag & Co. Kg | Method for supplying compressed air to a compressed air consumer, valve device and data carrier with a computer program |
DE102016206821A1 (en) * | 2016-04-21 | 2017-10-26 | Festo Ag & Co. Kg | Method for operating a valve device, valve device and data carrier with a computer program |
US10323384B2 (en) | 2016-12-08 | 2019-06-18 | Caterpillar Inc. | Active damping ride control system for attenuating oscillations in a hydraulic actuator of a machine |
CN113755319A (en) * | 2017-02-14 | 2021-12-07 | 阿克斯比尔公司 | Apparatus and method for continuous diagnosis of macromolecules |
FR3066560B1 (en) * | 2017-05-17 | 2020-05-22 | Etablissements Emily | HYDRAULIC SYSTEM FOR REPETITIVELY INVERTING THE DIRECTION OF OPERATION OF AT LEAST ONE HYDRAULIC CYLINDER |
FR3072440B1 (en) * | 2017-10-13 | 2019-11-29 | Parker Hannifin Emea S.A.R.L. | CONFIGURABLE VALVE FOR DISPENSING A FLUID AND METHOD FOR SETTING SAID VALVE |
DE102019204497B3 (en) * | 2019-03-29 | 2020-09-03 | Festo Se & Co. Kg | System and procedure |
US11236489B2 (en) * | 2019-09-25 | 2022-02-01 | Wilco Manufacturing, LLC | Apparatus for installing a land anchor |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3917242A1 (en) | 1989-03-30 | 1990-10-04 | Antriebs Steuerungstech Ges | SOLENOID VALVE BATTERY |
US6354185B1 (en) * | 1999-06-17 | 2002-03-12 | Sturman Industries, Inc. | Flow manager module |
JP4178736B2 (en) * | 2000-08-30 | 2008-11-12 | 株式会社デンソー | Table feeding system |
US6598391B2 (en) * | 2001-08-28 | 2003-07-29 | Caterpillar Inc | Control for electro-hydraulic valve arrangement |
DE10208390A1 (en) | 2001-10-25 | 2003-05-15 | Rexroth Mecman Gmbh | Multi-way pneumatic valve block has an electronic controller that allows free and flexible selection of valve connection paths within a compact valve body that comprises four serially connected 2- way valve units |
US6880332B2 (en) * | 2002-09-25 | 2005-04-19 | Husco International, Inc. | Method of selecting a hydraulic metering mode for a function of a velocity based control system |
US7021191B2 (en) * | 2003-01-24 | 2006-04-04 | Viking Technologies, L.C. | Accurate fluid operated cylinder positioning system |
DE10315460B4 (en) | 2003-03-27 | 2006-02-02 | Steuerungstechnik Staiger Gmbh & Co. Produktions-Vertriebs-Kg | Valve arrangement for gaseous and liquid media |
WO2005077731A1 (en) * | 2004-02-10 | 2005-08-25 | Continental Teves Ag & Co.Ohg | Vehicle steering system |
US7204185B2 (en) * | 2005-04-29 | 2007-04-17 | Caterpillar Inc | Hydraulic system having a pressure compensator |
DE502005002417D1 (en) | 2005-07-26 | 2008-02-14 | Festo Ag & Co | Solenoid valve |
US20070044842A1 (en) * | 2005-08-30 | 2007-03-01 | Festo Corporation | Valve assembly with manual override cover |
US7380398B2 (en) * | 2006-04-04 | 2008-06-03 | Husco International, Inc. | Hydraulic metering mode transitioning technique for a velocity based control system |
US7905088B2 (en) * | 2006-11-14 | 2011-03-15 | Incova Technologies, Inc. | Energy recovery and reuse techniques for a hydraulic system |
-
2009
- 2009-04-17 DE DE200910017879 patent/DE102009017879A1/en not_active Ceased
-
2010
- 2010-03-06 EP EP20100708721 patent/EP2419646B1/en not_active Not-in-force
- 2010-03-06 CN CN201080016957.5A patent/CN102395798B/en not_active Expired - Fee Related
- 2010-03-06 JP JP2012505065A patent/JP2012524216A/en active Pending
- 2010-03-06 WO PCT/EP2010/001434 patent/WO2010118802A1/en active Application Filing
- 2010-03-06 US US13/263,237 patent/US20120037251A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
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WO2010118802A1 (en) | 2010-10-21 |
EP2419646A1 (en) | 2012-02-22 |
DE102009017879A1 (en) | 2010-10-21 |
JP2012524216A (en) | 2012-10-11 |
CN102395798A (en) | 2012-03-28 |
CN102395798B (en) | 2015-07-15 |
US20120037251A1 (en) | 2012-02-16 |
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