EP0686775A1 - Electropneumatic valve assembly - Google Patents

Electropneumatic valve assembly Download PDF

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Publication number
EP0686775A1
EP0686775A1 EP95106525A EP95106525A EP0686775A1 EP 0686775 A1 EP0686775 A1 EP 0686775A1 EP 95106525 A EP95106525 A EP 95106525A EP 95106525 A EP95106525 A EP 95106525A EP 0686775 A1 EP0686775 A1 EP 0686775A1
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EP
European Patent Office
Prior art keywords
valve device
valve
pilot
standard housing
connections
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Granted
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EP95106525A
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German (de)
French (fr)
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EP0686775B1 (en
EP0686775B2 (en
Inventor
Francisco Dipl. Ing. Krauser
Pierre Bonino
Emile Francoz
Rolf Dipl. Ing. Meier
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Robert Bosch GmbH
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Robert Bosch GmbH
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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
    • F15B13/04—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

Definitions

  • the invention is based on an electropneumatic valve device for independently controlling two. Consumer connections according to the type specified in the preamble of claim 1.
  • Such an electropneumatic valve device for independently controlling two consumer connections from DE 42 26 539 A1 is already known, as is used in valve carrier systems for better utilization of the limited valve positions, as a result of which different valve series can be arranged simultaneously on one valve position.
  • electromagnetically operated 3/2-way valves are mounted on a connection plate having the two consumer connections on both end faces. Both 3/2 valves and the connection plate are seated on an adapter plate, which in turn is placed on a base plate of the valve carrier system.
  • the adapter plate also contains the two electrical plug connections for the two 3/2-way valves and a plug connection for connection to the Base plate.
  • valve device Although a larger number of control functions can be accommodated with a predetermined number of valve positions with this valve device due to better use of space, this valve device is relatively complex in terms of costs and installation space. The flow rates to the consumer connections are also limited with this design, especially since directly controlled 3/2-way valves are used. The large number of plug connections and components also increases the susceptibility to faults during operation and makes assembly more difficult.
  • an electromagnetically actuated directional control valve which is designed as a 5/2 valve, in which both solenoid valves used for pilot control are arranged on a single end face of the actual directional control valve.
  • the directional valve does not need an adapter plate with a single electrical connection part; however, an intermediate plate having a plurality of control channels is required between the actual housing and the pilot valves.
  • the drive pistons for the main control spool are guided directly in the directional control valve housing, which causes a complex construction.
  • this 5/2-way valve is only designed for a single control function, as is required to control a double-acting consumer. In many applications, an optimal design is not possible, especially in valve carrier systems.
  • EP 0 139 259 B1 discloses an electrohydraulic control valve in which two electromagnetically actuated, pilot-operated, 3/2-way valves are installed coaxially to one another. Both 3/2 valves are identical to each other and in a complex Seat valve design, so that a total of four switching combinations are possible and the connected double-acting motor can not only be moved in both directions, but can also be brought into a locked position and a floating position.
  • This valve is also designed so that it is only suitable for a control function for controlling a double-acting consumer.
  • the poppet valve design used in hydraulics is therefore not suitable for pneumatic valve carrier systems.
  • the electropneumatic valve device for independently controlling two consumer connections with the characterizing features of the main claim has the advantage that a given installation space can be better utilized with control functions with a simple and inexpensive construction.
  • different valve series can be used together in valve carrier systems in one valve location, whereby above all two 3/2-way valves can be easily accommodated.
  • higher flow rates can be achieved, as is usually the case with a 5/2-way valve.
  • a separate connection plate having the consumer connections can now be omitted.
  • An adapter plate is also no longer required, which not only reduces installation space and costs, but also simplifies assembly and reduces susceptibility to faults.
  • the valve device can easily be equipped for different functions by using corresponding longitudinal slides with differently arranged control edges, so that functions such as normally open, normally closed or combinations thereof can be implemented.
  • the most Standard housing flanged pilot housing with integrated pilot valves and electrical connection favors a cost-saving and compact design.
  • An embodiment according to claim 2 is advantageous, as a result of which a cheap, large-volume standard housing can be used without major changes in order to implement the valve device in a simple and space-saving and robust manner. It is also expedient if the valve device is equipped with drive pistons mounted outside the standard housing, which favors inexpensive and easy manufacture.
  • a design according to claims 4 to 6 is favorable, as a result of which a combined resetting by spring force and pneumatic force takes place in that the longitudinal slide is acted upon by the inlet pressure on its smaller effective area on the end face. It is also advantageous if the standard housing is designed according to claim 6, which supports a simple and inexpensive construction of the valve device.
  • the valve device can also be designed in a favorable manner in accordance with claims 9 to 11 in such a way that any combinations of the functions normally open or normally closed are possible by means of easily replaceable longitudinal slides. Further advantageous embodiments result from the remaining claims, the description and the drawing.
  • FIG. 1 shows a partial longitudinal section through an electropneumatic valve device for independent control of two consumer connections in a simplified representation
  • FIGS. 2 and 3 show a second or third exemplary embodiment of the electropneumatic valve device with other longitudinal slides for different functional variants.
  • valve device 10 shows a simplified representation of an electropneumatic valve device 10, partly in longitudinal section and partly schematically, of how it can be mounted in a valve carrier system on a valve location on a base plate.
  • the valve device 10 essentially consists of a valve module 11, a pilot control module 12 and a cover 13, all of which are attached to one another.
  • the valve module 11 has a standard housing 14 of a 5/2-way valve, in which a continuous slide bore 15 runs between its two end faces 16, 17.
  • a continuous slide bore 15 runs between its two end faces 16, 17.
  • five adjacent chambers 18, 19, 21, 22, 23 are formed by annular extensions, of which the central chamber 21 is connected to an inlet connection 24 designated by P.
  • the chambers 19 and 22 lying on both sides of the third chamber 21 are connected to the consumer connections 25, 26, which are designated A and B here.
  • the remaining outer chambers 18, 23 are connected to return ports 27, 28, which are denoted by R. While the two consumer connections 25, 26 are led upwards in the standard housing 14 to a transverse side 29, the inlet connection 24 and the two return connections 27, 28 run into a lower transverse side 31.
  • a first and a second longitudinal slide 32, 33 are now installed in the slide bore 15 from both end faces 16 and 17, and are guided in the slide bore 15 in a sealed and sliding manner.
  • Both longitudinal slides 32, 33 are identical to one another and each have two control edges 34, 35 for the function of a 3/2-way valve.
  • Each longitudinal slide 32, 33 has an outer piston section 36 with which it can strike the standard housing 14 and thus marks an end position of the longitudinal slide 32 or 33.
  • a restoring spring 37 bears against this piston section 36 and is supported with its other end in the standard housing 14. Since the two longitudinal slides are of the same design, the same components on the second longitudinal slider 33 are identified by the same reference numerals, but with an apostrophe.
  • the pilot control module 12 is attached to the first end face 16 of the standard housing 14 and accommodates a first pilot control valve 38 and a second pilot control valve 39 in its interior. Both pilot valves 38, 39 are identical to one another and designed as 3/2-way valves which can be actuated electromagnetically against spring force.
  • the first pilot valve 38 serves to control the first longitudinal slide 32, the second pilot valve 39 correspondingly for the second longitudinal slide 33.
  • In the pilot module 12 there is also a recess 41 which is open towards the end face 16 and in which a first Drive piston is slidably guided.
  • the drive piston 42 is thus mounted outside the standard housing 14 in the pilot housing 43 of the valve module 11, and forms a component which is separate from the first longitudinal slide 32 and is mounted concentrically with the longitudinal slide and can actuate the first longitudinal slide 32 when pressure is applied in a pressure chamber 44.
  • the pressure chamber 44 is connected to the pilot valve 38 via a first control line 45.
  • the first control valve 38 is connected to the inlet connection 24 via a pressure control line 46.
  • the second pilot valve 39 is also connected to this pressure control line 46 in parallel to the first pilot valve 38.
  • a sequence control line 47 leads from the first pilot valve 38 to the return connection 27, the second pilot valve 39 likewise being connected in parallel here.
  • An electrical plug-in connection 48 is also arranged on the pilot module 12, via which the control signals for the two pilot valves 38, 39 can be input.
  • the cover 13 On the second end face 17 of the valve module 11, the cover 13 is attached, which receives a second drive piston 51 in a pocket-like recess 49.
  • This drive piston 51 is also formed separately from the second longitudinal slide 33 and is therefore only supported in the cover 13.
  • the drive piston 51 delimits a pressure chamber 52, which has a connection to the second pilot valve 39 via a second control line 53, this control line 53 being led through the standard housing 14 into the pilot housing 43.
  • the first pilot valve 38 and the first longitudinal slide 32 with the associated drive piston 42 thus form parts of a pilot-controlled, first 3/2-way valve 55, while the second pilot valve 39 with the second longitudinal slide 33 and the drive piston 51 forms a second, pilot-controlled 3/2-way valve, both of which can be controlled independently of one another.
  • both directional control valves 55, 56 the control edges 34, 35 on the longitudinal slides 32 and 33 are designed in such a way that the valves have a type which is referred to as "normally closed". This means that when the pilot valves 38, 39 are not energized, the longitudinal slides 32, 33 each assume their spring-centered end position, in which the connection from the inlet connection 24 to the associated consumer connection 25 or 26 is blocked.
  • valve device 10 The mode of operation of the electropneumatic valve device 10 is explained as follows, the relationship between such a valve device 10 and a base plate (not shown in more detail) in a valve carrier system being assumed to be known per se:
  • the first 3/2-way valve 55 and the second 3/2-way valve 56 are shown switched off.
  • the first pilot valve 38 is actuated magnetically against spring force, so that supply air can flow from the inlet connection P via the pressure control line 46, the pilot valve 38 and the first control line 45 into the first pressure chamber 44 and act there on the first drive piston 42.
  • the pressurized effective cross section of the drive piston 42 is substantially larger than the end face of the first longitudinal slide 32 acted upon by the inlet pressure in the chamber 21, so that the longitudinal slide 32 is displaced into the working position against the force of the return spring 37.
  • the drive piston 42 which is mounted separately in the pilot housing 43, cannot exert any radial forces on the longitudinal slide 32.
  • the first control edge 34 is located within the chamber 21, so that supply air can flow unimpeded from the inlet connection 24 to the first consumer connection 25.
  • the second control edge 35 blocks the connection from the consumer connection 25 to the return connection 27. If the excitation of the first pilot valve 38 is switched off, the pressure chamber 44 is relieved via the first control line 45 and the starting line 47 to the return connection 27, so that the return spring 37 pushes the first longitudinal slide 32 together with the drive piston 42 to the left into a rest position, whereby the first control edge 34 interrupts the connection from the inlet connection 24 to the consumer connection 25, while the second control edge 35 relieves the load connection 25 to the return connection 27.
  • the second longitudinal slide 32 can be actuated in a corresponding manner by the drive piston 51, so that the function of the second directional valve 56 can be used independently of that of the first directional valve 55.
  • the function of the second directional valve 56 can be used independently of that of the first directional valve 55.
  • the standard housing 14 and the pilot module 12 are like this trained that they can be mounted directly on the base plate in a valve carrier system without additional adapter plate.
  • the design of the drive pistons 42, 51 as components which are separate from the longitudinal slides and which are mounted outside of the standard housing 14 in the attached pilot control housing 43 or cover 13 prevents disruptive influences on the storage and guidance of the longitudinal slides 32, 33.
  • FIG. 2 shows a second electropneumatic valve device 60 which differs from that according to FIG. 1 only in that it uses two other longitudinal slides 61, 62 which are identical to one another.
  • the position of the control edges 34, 35 is selected so that both valves have the "normally open” function. This means that when the valves are not energized, the connection from the inlet connection 24 to the consumer connection 26 is open, while the connection from the latter to the return connection 28 is blocked; this is shown in FIG. 2 with the longitudinal slides 61, 62 in the rest position.
  • both directional control valves are designed for a “normally open” function.
  • the mode of operation of the valve device 60 corresponds otherwise to that of the valve device 10.
  • FIG. 3 shows in simplified form a third valve device 70, in which a first longitudinal slide 32 for the "normally closed” function is installed in the standard housing 17 in the first directional valve 55 and a second longitudinal slide 62 for the "normally open” function is installed in the second directional valve 56 are.
  • a first longitudinal slide 32 for the "normally closed” function is installed in the standard housing 17 in the first directional valve 55 and a second longitudinal slide 62 for the "normally open” function is installed in the second directional valve 56 are.
  • the standard housing 14 can also be used in such a way that the middle connection 24 is assigned R and the two connections 27, 28 are assigned P if necessary. Designs are also possible in which the longitudinal slide and drive piston are formed in one piece. The position of the longitudinal slide 32, 62 in Fig. 3 can also be interchanged.

Abstract

The electropneumatic valve (10) has the standard housing (14) of a 5-way valve. It has a spool bore (15) and five adjacent chambers (18-23). It has at least one supply connection (24), two operating connections (25,26) and a return flow line (27,28). Two spools (32,33) slide in the bore, actuated by the pressure medium. It has two control edges (34,35) according to their 3/2 function. A drive piston (42,51) also acts as an actuator, and two electromagnetic inlet valves (38,39) control the piston and are located together on an end face (16) of the standard housing. <IMAGE>

Description

Stand der TechnikState of the art

Die Erfindung geht aus von einer elektropneumatischen Ventileinrichtung zur unabhängigen Steuerung zweier. Verbraucheranschlüsse nach der im Oberbegriff des Anspruchs 1 näher angegebenen Gattung.The invention is based on an electropneumatic valve device for independently controlling two. Consumer connections according to the type specified in the preamble of claim 1.

Es ist schon eine solche elektropneumatische Ventileinrichtung zur unabhängigen Steuerung zweier Verbraucheranschlüsse aus der DE 42 26 539 A1 bekannt, wie sie in Ventilträgersystemen zur besseren Ausnutzung der begrenzten Ventilplätze verwendet wird, wodurch auf einem Ventilplatz unterschiedliche Ventilbaureihen gleichzeitig angeordnet werden können. Bei dieser Ventileinrichtung werden an einer die beiden Verbraucheranschlüsse aufweisenden Anschlußplatte an beiden Stirnseiten elektromagnetisch betätigte 3/2-Ventile angebaut. Beide 3/2-Ventile sowie die Anschlußplatte sitzen auf einer Adapterplatte, die ihrerseits auf eine Grundplatte des Ventilträgersystems aufgesetzt ist. Die Adapterplatte enthält dabei neben hydraulischen Anschlüssen auch die beiden elektrischen Steckeranschlüsse für die zwei 3/2-Ventile und einen Steckeranschluß zum Anschließen an die Grundplatte. Obwohl mit dieser Ventileinrichtung durch bessere Raumausnutzung eine größere Zahl von Steuerfunktionen bei vorgegebener Anzahl von Ventilplätzen unterbringbar ist, baut diese Ventileinrichtung hinsichtlich Kosten und Bauraum doch relativ aufwendig. Auch sind die Durchflußströme zu den Verbraucheranschlüssen bei dieser Bauweise begrenzt, zumal direktgesteuerte 3/2-Ventile verwendet werden. Die Vielzahl von Steckverbindungen und Bauelementen erhöht auch die Störanfälligkeit im Betrieb und erschwert die Montage.Such an electropneumatic valve device for independently controlling two consumer connections from DE 42 26 539 A1 is already known, as is used in valve carrier systems for better utilization of the limited valve positions, as a result of which different valve series can be arranged simultaneously on one valve position. In this valve device, electromagnetically operated 3/2-way valves are mounted on a connection plate having the two consumer connections on both end faces. Both 3/2 valves and the connection plate are seated on an adapter plate, which in turn is placed on a base plate of the valve carrier system. In addition to hydraulic connections, the adapter plate also contains the two electrical plug connections for the two 3/2-way valves and a plug connection for connection to the Base plate. Although a larger number of control functions can be accommodated with a predetermined number of valve positions with this valve device due to better use of space, this valve device is relatively complex in terms of costs and installation space. The flow rates to the consumer connections are also limited with this design, especially since directly controlled 3/2-way valves are used. The large number of plug connections and components also increases the susceptibility to faults during operation and makes assembly more difficult.

Ferner ist aus der DE 40 20 024 A1 ein elektromagnetisch betätigbares Wegeventil bekannt, das als 5/2-Ventil ausgeführt ist, bei dem beide zur Vorsteuerung dienenden Magnetventile auf einer einzigen Stirnseite des eigentlichen Wegeventils angeordnet sind. Auf diese Weise kommt das Wegeventil ohne Adapterplatte mit einem einzigen elektrischen Anschlußteil aus; jedoch ist zwischen dem eigentlichen Gehäuse und den Vorsteuerventilen eine Zwischenplatte erforderlich, die eine Vielzahl von Steuerkanälen aufweist. Auch sind hier die Antriebskolben für den Hauptsteuerschieber unmittelbar im Wegeventil-Gehäuse geführt, was eine aufwendige Bauweise verursacht. Vor allem aber ist dieses 5/2-Wegeventil nur für eine einzige Steuerfunktion ausgelegt, wie sie zur Steuerung eines doppeltwirkenden Verbrauchers benötigt wird. In vielen Anwendungsfällen ist damit keine optimale Auslegung möglich, insbesondere in Ventilträgersystemen.Furthermore, from DE 40 20 024 A1 an electromagnetically actuated directional control valve is known, which is designed as a 5/2 valve, in which both solenoid valves used for pilot control are arranged on a single end face of the actual directional control valve. In this way, the directional valve does not need an adapter plate with a single electrical connection part; however, an intermediate plate having a plurality of control channels is required between the actual housing and the pilot valves. Here, too, the drive pistons for the main control spool are guided directly in the directional control valve housing, which causes a complex construction. Above all, however, this 5/2-way valve is only designed for a single control function, as is required to control a double-acting consumer. In many applications, an optimal design is not possible, especially in valve carrier systems.

Ferner ist aus der EP 0 139 259 B1 ein elektrohydraulisches Steuerventil bekannt, bei dem in einem Gehäuse koaxial zueinander zwei elektromagnetisch betätigte, vorgesteuerte, 3/2-Ventile eingebaut sind. Beide 3/2-Ventile sind untereinander gleich und in einer aufwendigen Sitzventilbauweise ausgeführt, so daß insgesamt vier Schaltkombinationen möglich sind und der angeschlossene doppeltwirkende Motor nicht nur in beiden Richtungen bewegt werden kann, sondern auch in eine Sperrstellung und eine Schwimmstellung gebracht werden kann. Auch dieses Ventil ist so ausgeführt, daß es sich nur für eine Steuerfunktion zur Steuerung eines doppeltwirkenden Verbrauchers eignet. Die in der Hydraulik verwendete Sitzventilbauweise eignet sich so nicht für pneumatische Ventilträgersysteme.Furthermore, EP 0 139 259 B1 discloses an electrohydraulic control valve in which two electromagnetically actuated, pilot-operated, 3/2-way valves are installed coaxially to one another. Both 3/2 valves are identical to each other and in a complex Seat valve design, so that a total of four switching combinations are possible and the connected double-acting motor can not only be moved in both directions, but can also be brought into a locked position and a floating position. This valve is also designed so that it is only suitable for a control function for controlling a double-acting consumer. The poppet valve design used in hydraulics is therefore not suitable for pneumatic valve carrier systems.

Vorteile der ErfindungAdvantages of the invention

Die erfindungsgemäße elektropneumatische Ventileinrichtung zur unabhängigen Steuerung zweier Verbraucheranschlüsse mit den kennzeichnenden Merkmalen des Hauptanspruchs hat demgegenüber den Vorteil, daß bei einfacher und kostengünstiger Bauweise ein vorgegebener Bauraum besser mit Steuerfunktionen ausgenützt werden kann. Dadurch lassen sich in Ventilträgersystemen auf einem Ventilplatz unterschiedliche Ventilbaureihen gemeinsam anwenden, wobei vor allem zwei 3/2-Wegeventile leicht untergebracht werden können. Durch die Integration beider Wegeventile in einem Standardgehäuse lassen sich höhere Durchflußströme realisieren, wie dies in der Regel bei einem 5/2-Wegeventil der Fall ist. Eine gesonderte, die Verbraucheranschlüsse aufweisende Anschlußplatte kann nunmehr entfallen. Ebenso wird eine Adapterplatte nicht mehr benötigt, wodurch nicht nur Bauraum und Kosten sinken, sondern auch die Montage vereinfacht und die Störanfälligkeit verringert wird. Die Ventileinrichtung ist leicht für unterschiedliche Funktionen ausrüstbar, indem entsprechende Längsschieber mit unterschiedlich angeordneten Steuerkanten verwendet werden, so daß sich Funktionen wie Normal-Offen, Normal-Geschlossen oder Kombinationen davon realisieren lassen. Das am Standardgehäuse angeflanschte Vorsteuergehäuse mit integrierten Vorsteuerventilen und elektrischem Anschluß begünstigt eine kostensparende und kompakte Bauweise.The electropneumatic valve device according to the invention for independently controlling two consumer connections with the characterizing features of the main claim has the advantage that a given installation space can be better utilized with control functions with a simple and inexpensive construction. As a result, different valve series can be used together in valve carrier systems in one valve location, whereby above all two 3/2-way valves can be easily accommodated. By integrating both directional valves in a standard housing, higher flow rates can be achieved, as is usually the case with a 5/2-way valve. A separate connection plate having the consumer connections can now be omitted. An adapter plate is also no longer required, which not only reduces installation space and costs, but also simplifies assembly and reduces susceptibility to faults. The valve device can easily be equipped for different functions by using corresponding longitudinal slides with differently arranged control edges, so that functions such as normally open, normally closed or combinations thereof can be implemented. The most Standard housing flanged pilot housing with integrated pilot valves and electrical connection favors a cost-saving and compact design.

Durch die in den Unteransprüchen aufgeführten Maßnahmen sind vorteilhafte Weiterbildungen und Verbesserungen der im Hauptanspruch angegebenen elektropneumatischen Ventileinrichtung möglich. Vorteilhaft ist eine Ausbildung nach Anspruch 2, wodurch sich ein billiges, in großen Stückzahlen hergestelltes Standardgehäuse ohne große Änderungen verwenden läßt, um die Ventileinrichtung einfach und raumsparend und robust zu realisieren. Zweckmäßig ist es ferner, wenn die Ventileinrichtung gemäß Anspruch 3 mit außerhalb des Standardgehäuses gelagerten Antriebskolben ausgerüstet wird, was eine kostengünstige und leichte Herstellung begünstigt. Günstig ist eine Ausbildung nach den Ansprüchen 4 bis 6, wodurch eine kombinierte Rückstellung durch Federkraft und pneumatische Kraft erfolgt, indem der Längsschieber stirnseitig auf seiner kleineren wirksamen Fläche vom Zulaufdruck beaufschlagt wird. Ferner ist es vorteilhaft, wenn das Standardgehäuse gemäß Anspruch 6 ausgeführt wird, was eine einfache und kostengünstige Bauweise der Ventileinrichtung unterstützt. In günstiger Weise kann ferner gemäß den Ansprüchen 9 bis 11 die Ventileinrichtung so ausgeführt werden, daß durch leicht austauschbare Längsschieber beliebige Kombinationen der Funktionen Normal-Offen bzw. Normal-Geschlossen möglich sind. Weitere vorteilhafte Ausgestaltungen ergeben sich aus den übrigen Ansprüchen, der Beschreibung sowie der Zeichnung.The measures listed in the subclaims enable advantageous developments and improvements of the electropneumatic valve device specified in the main claim. An embodiment according to claim 2 is advantageous, as a result of which a cheap, large-volume standard housing can be used without major changes in order to implement the valve device in a simple and space-saving and robust manner. It is also expedient if the valve device is equipped with drive pistons mounted outside the standard housing, which favors inexpensive and easy manufacture. A design according to claims 4 to 6 is favorable, as a result of which a combined resetting by spring force and pneumatic force takes place in that the longitudinal slide is acted upon by the inlet pressure on its smaller effective area on the end face. It is also advantageous if the standard housing is designed according to claim 6, which supports a simple and inexpensive construction of the valve device. The valve device can also be designed in a favorable manner in accordance with claims 9 to 11 in such a way that any combinations of the functions normally open or normally closed are possible by means of easily replaceable longitudinal slides. Further advantageous embodiments result from the remaining claims, the description and the drawing.

Zeichnungdrawing

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und in der nachfolgenden Beschreibung näher erläutert. Es zeigen Figur 1 einen teilweisen Längsschnitt durch eine elektropneumatische Ventileinrichtung zur unabhängigen Steuerung zweier Verbraucheranschlüsse in vereinfachter Darstellung und die Figur 2 und 3 ein zweites bzw. drittes Ausführungsbeispiel der elektropneumatischen Ventileinrichtung mit anderen Längsschiebern für unterschiedliche Funktionsvarianten.An embodiment of the invention is shown in the drawing and explained in more detail in the following description. 1 shows a partial longitudinal section through an electropneumatic valve device for independent control of two consumer connections in a simplified representation, and FIGS. 2 and 3 show a second or third exemplary embodiment of the electropneumatic valve device with other longitudinal slides for different functional variants.

Beschreibung des AusführungsbeispielsDescription of the embodiment

In der Figur 1 ist in vereinfachter Darstellung eine elektropneumatische Ventileinrichtung 10 teilweise im Längsschnitt und teilweise schematisch dargestellt, wie sie in einem Ventilträgersystem auf einem Ventilplatz einer Grundplatte montiert werden kann. Die Ventileinrichtung 10 besteht im wesentlichen aus einem Ventilmodul 11, einem Vorsteuermodul 12 und einem Deckel 13, die alle aneinandergebaut sind.1 shows a simplified representation of an electropneumatic valve device 10, partly in longitudinal section and partly schematically, of how it can be mounted in a valve carrier system on a valve location on a base plate. The valve device 10 essentially consists of a valve module 11, a pilot control module 12 and a cover 13, all of which are attached to one another.

Der Ventilmodul 11 weist ein Standardgehäuse 14 eines 5/2-Wegeventils auf, in dem eine durchgehende Schieberbohrung 15 zwischen seinen beiden Stirnseiten 16, 17 verläuft. In der Schieberbohrung 15 sind durch ringförmige Erweiterungen fünf nebeneinanderliegende Kammern 18, 19, 21, 22, 23 ausgebildet, von denen die mittig liegende Kammer 21 mit einem mit P bezeichneten Zulaufanschluß 24 verbunden ist. Die zu beiden Seiten der dritten Kammer 21 liegenden Kammern 19 und 22 sind mit den Verbraucheranschlüssen 25, 26 verbunden, die hier mit A bzw. B bezeichnet sind. Die verbleibenden außenliegenden Kammern 18, 23 sind mit Rücklaufanschlüssen 27, 28 verbunden, die mit R bezeichnet sind. Während die beiden Verbraucheranschlüsse 25, 26 im Standardgehäuse 14 nach oben hin zu einer Querseite 29 geführt sind, verlaufen der Zulaufanschluß 24 und die beiden Rücklaufanschlüsse 27, 28 in eine untere Querseite 31.The valve module 11 has a standard housing 14 of a 5/2-way valve, in which a continuous slide bore 15 runs between its two end faces 16, 17. In the slide bore 15, five adjacent chambers 18, 19, 21, 22, 23 are formed by annular extensions, of which the central chamber 21 is connected to an inlet connection 24 designated by P. The chambers 19 and 22 lying on both sides of the third chamber 21 are connected to the consumer connections 25, 26, which are designated A and B here. The remaining outer chambers 18, 23 are connected to return ports 27, 28, which are denoted by R. While the two consumer connections 25, 26 are led upwards in the standard housing 14 to a transverse side 29, the inlet connection 24 and the two return connections 27, 28 run into a lower transverse side 31.

In die Schieberbohrung 15 sind nun von beiden Stirnseiten 16 bzw. 17 her ein erster und ein zweiter Längsschieber 32, 33 eingebaut und in der Schieberbohrung 15 dicht und gleitend geführt. Beide Längsschieber 32, 33 sind untereinander gleich ausgebildet und weisen für die Funktion eines 3/2-Ventils jeweils zwei Steuerkanten 34, 35 auf. Jeder Längsschieber 32, 33 hat einen äußeren Kolbenabschnitt 36, mit dem er am Standardgehäuse 14 anschlagen kann und somit eine Endstellung des Längsschiebers 32 bzw. 33 markiert. An diesem Kolbenabschnitt 36 liegt eine Rückstellfeder 37 an, die sich mit ihrem anderen Ende im Standardgehäuse 14 abstützt. Da die beiden Längsschieber gleich ausgebildet sind, sind gleiche Bauelemente am zweiten Längsschieber 33 mit gleichen Bezugszeichen, jedoch mit Apostroph versehen, bezeichnet.A first and a second longitudinal slide 32, 33 are now installed in the slide bore 15 from both end faces 16 and 17, and are guided in the slide bore 15 in a sealed and sliding manner. Both longitudinal slides 32, 33 are identical to one another and each have two control edges 34, 35 for the function of a 3/2-way valve. Each longitudinal slide 32, 33 has an outer piston section 36 with which it can strike the standard housing 14 and thus marks an end position of the longitudinal slide 32 or 33. A restoring spring 37 bears against this piston section 36 and is supported with its other end in the standard housing 14. Since the two longitudinal slides are of the same design, the same components on the second longitudinal slider 33 are identified by the same reference numerals, but with an apostrophe.

An die erste Stirnfläche 16 des Standardgehäuses 14 ist der Vorsteuermodul 12 angebaut, der in seinem Inneren ein erstes Vorsteuerventil 38 sowie ein zweites Vorsteuerventil 39 aufnimmt. Beide Vorsteuerventile 38, 39 sind untereinander gleich und als 3/2-Ventile ausgebildet, die elektromagnetisch entgegen Federkraft betätigbar sind. Das erste Vorsteuerventil 38 dient zur Steuerung des ersten Längsschiebers 32, das zweite Vorsteuerventil 39 entsprechend für den zweiten Längsschieber 33. In dem Vorsteuermodul 12 ist ferner eine zur Stirnseite 16 hin offene Ausnehmung 41 ausgebildet, in der ein erster Antriebskolben dicht gleitend geführt ist. Der Antriebskolben 42 ist somit außerhalb des Standardgehäuses 14 in dem Vorsteuergehäuse 43 des Ventilmoduls 11 gelagert, und bildet ein vom ersten Längsschieber 32 getrenntes Bauelement, das konzentrisch zum Längsschieber gelagert ist und bei Druckbeaufschlagung in einem Druckraum 44 den ersten Längsschieber 32 betätigen kann. Der Druckraum 44 ist zu diesem Zweck über eine erste Steuerleitung 45 mit dem Vorsteuerventil 38 verbunden. Ferner steht das erste Steuerventil 38 über eine Drucksteuerleitung 46 mit dem Zulaufanschluß 24 in Verbindung. An diese Drucksteuerleitung 46 ist parallel zum ersten Vorsteuerventil 38 auch das zweite Vorsteuerventil 39 angeschlossen. Ferner führt vom ersten Vorsteuerventil 38 eine Ablaufsteuerleitung 47 zum Rücklaufanschluß 27, wobei hier das zweite Vorsteuerventil 39 ebenfalls entsprechend parallel angeschlossen ist. Am Vorsteuermodul 12 ist ferner ein elektrischer Steckanschluß 48 angeordnet, über den die Ansteuersignale für die beiden Vorsteuerventile 38, 39 eingebbar sind.The pilot control module 12 is attached to the first end face 16 of the standard housing 14 and accommodates a first pilot control valve 38 and a second pilot control valve 39 in its interior. Both pilot valves 38, 39 are identical to one another and designed as 3/2-way valves which can be actuated electromagnetically against spring force. The first pilot valve 38 serves to control the first longitudinal slide 32, the second pilot valve 39 correspondingly for the second longitudinal slide 33. In the pilot module 12 there is also a recess 41 which is open towards the end face 16 and in which a first Drive piston is slidably guided. The drive piston 42 is thus mounted outside the standard housing 14 in the pilot housing 43 of the valve module 11, and forms a component which is separate from the first longitudinal slide 32 and is mounted concentrically with the longitudinal slide and can actuate the first longitudinal slide 32 when pressure is applied in a pressure chamber 44. For this purpose, the pressure chamber 44 is connected to the pilot valve 38 via a first control line 45. Furthermore, the first control valve 38 is connected to the inlet connection 24 via a pressure control line 46. The second pilot valve 39 is also connected to this pressure control line 46 in parallel to the first pilot valve 38. Furthermore, a sequence control line 47 leads from the first pilot valve 38 to the return connection 27, the second pilot valve 39 likewise being connected in parallel here. An electrical plug-in connection 48 is also arranged on the pilot module 12, via which the control signals for the two pilot valves 38, 39 can be input.

An der zweiten Stirnseite 17 des Ventilmoduls 11 ist der Deckel 13 angebaut, der in einer sacklochartigen Ausnehmung 49 einen zweiten Antriebskolben 51 aufnimmt. Auch dieser Antriebskolben 51 ist vom zweiten Längsschieber 33 getrennt ausgebildet und somit nur im Deckel 13 gelagert. Der Antriebskolben 51 begrenzt einen Druckraum 52, der über eine zweite Steuerleitung 53 mit dem zweiten Vorsteuerventil 39 Verbindung hat, wobei diese Steuerleitung 53 durch das Standardgehäuse 14 in das Vorsteuergehäuse 43 hindurchgeführt ist.On the second end face 17 of the valve module 11, the cover 13 is attached, which receives a second drive piston 51 in a pocket-like recess 49. This drive piston 51 is also formed separately from the second longitudinal slide 33 and is therefore only supported in the cover 13. The drive piston 51 delimits a pressure chamber 52, which has a connection to the second pilot valve 39 via a second control line 53, this control line 53 being led through the standard housing 14 into the pilot housing 43.

Das erste Vorsteuerventil 38 sowie der erste Längsschieber 32 mit dem zugeordneten Antriebskolben 42 bilden somit Teile eines vorgesteuerten, ersten 3/2-Wegeventils 55, während das zweite Vorsteuerventil 39 mit dem zweiten Längsschieber 33 und dem Antriebskolben 51 ein zweites, vorgesteuertes 3/2-Wegeventil bildet, die beide unabhängig voneinander steuerbar sind. Bei beiden Wegeventilen 55, 56 sind die Steuerkanten 34, 35 an den Längsschiebern 32 bzw. 33 so ausgelegt, daß die Ventile eine Bauart aufweisen, die mit "Normal-Geschlossen" bezeichnet wird. Dies bedeutet, daß bei nicht erregten Vorsteuerventilen 38, 39 die Längsschieber 32, 33 jeweils ihre federzentrierte Endstellung einnehmen, in denen jeweils die Verbindung vom Zulaufanschluß 24 zum zugeordneten Verbraucheranschluß 25 bzw. 26 gesperrt ist.The first pilot valve 38 and the first longitudinal slide 32 with the associated drive piston 42 thus form parts of a pilot-controlled, first 3/2-way valve 55, while the second pilot valve 39 with the second longitudinal slide 33 and the drive piston 51 forms a second, pilot-controlled 3/2-way valve, both of which can be controlled independently of one another. In both directional control valves 55, 56, the control edges 34, 35 on the longitudinal slides 32 and 33 are designed in such a way that the valves have a type which is referred to as "normally closed". This means that when the pilot valves 38, 39 are not energized, the longitudinal slides 32, 33 each assume their spring-centered end position, in which the connection from the inlet connection 24 to the associated consumer connection 25 or 26 is blocked.

Die Wirkungsweise der elektropneumatischen Ventileinrichtung 10 wird wie folgt erläutert, wobei der Zusammenhang einer derartigen Ventileinrichtung 10 mit einer nicht näher gezeichneten Grundplatte in einem Ventilträgersystem als an sich bekannt vorausgesetzt wird:The mode of operation of the electropneumatic valve device 10 is explained as follows, the relationship between such a valve device 10 and a base plate (not shown in more detail) in a valve carrier system being assumed to be known per se:

Bei der Ventileinrichtung 10 sind das erste 3/2-Wegeventil 55 und das zweite 3/2-Wegeventeil 56 ausgeschaltet dargestellt. Zum Betätigen des ersten Wegeventils 55 wird das erste Vorsteuerventil 38 magnetisch gegen Federkraft betätigt, so daß vom Zulaufanschluß P über die Drucksteuerleitung 46, das Vorsteuerventil 38 und die erste Steuerleitung 45 Zuluft in den ersten Druckraum 44 strömen kann und dort den ersten Antriebskolben 42 beaufschlagt. Der druckbeaufschlagte wirksame Querschnitt des Antriebskolbens 42 ist wesentlich größer als die in der Kammer 21 vom Zulaufdruck beaufschlagte Stirnseite des ersten Längsschiebers 32, so daß der Längsschieber 32 gegen die Kraft der Rückstellfeder 37 in die Arbeitsstellung verschoben wird. Der im Vorsteuergehäuse 43 gesondert gelagerte Antriebskolben 42 kann dabei keine radialen Kräfte auf den Längsschieber 32 ausüben. In dieser Arbeitsstellung des Längsschiebers 32, bei welcher der Kolbenabschnitt 36 an einem Bund im Standardgehäuse 14 anschlägt, befindet sich die erste Steuerkante 34 innerhalb der Kammer 21, so daß Zuluft vom Zulaufanschluß 24 ungehindert zum ersten Verbraucheranschluß 25 strömen kann. Gleichzeitig sperrt die zweite Steuerkante 35 die Verbindung vom Verbraucheranschluß 25 zum Rücklaufanschluß 27 ab. Wird die Erregung des ersten Vorsteuerventils 38 abgeschaltet, so wird der Druckraum 44 über die erste Steuerleitung 45 und die Anlaufleitung 47 zum Rücklaufanschluß 27 entlastet, so daß die Rückstellfeder 37 den ersten Längsschieber 32 zusammen mit dem Antriebskolben 42 nach links in eine Ruhestellung schiebt, wobei die erste Steuerkante 34 die Verbindung vom Zulaufanschluß 24 zum Verbraucheranschluß 25 unterbricht, während die zweite Steuerkante 35 den Verbraucheranschluß 25 zum Rücklaufanschluß 27 entlastet.In the valve device 10, the first 3/2-way valve 55 and the second 3/2-way valve 56 are shown switched off. To actuate the first directional valve 55, the first pilot valve 38 is actuated magnetically against spring force, so that supply air can flow from the inlet connection P via the pressure control line 46, the pilot valve 38 and the first control line 45 into the first pressure chamber 44 and act there on the first drive piston 42. The pressurized effective cross section of the drive piston 42 is substantially larger than the end face of the first longitudinal slide 32 acted upon by the inlet pressure in the chamber 21, so that the longitudinal slide 32 is displaced into the working position against the force of the return spring 37. The drive piston 42, which is mounted separately in the pilot housing 43, cannot exert any radial forces on the longitudinal slide 32. In this working position of the longitudinal slide 32, in which the piston section 36 abuts a collar in the standard housing 14, the first control edge 34 is located within the chamber 21, so that supply air can flow unimpeded from the inlet connection 24 to the first consumer connection 25. At the same time, the second control edge 35 blocks the connection from the consumer connection 25 to the return connection 27. If the excitation of the first pilot valve 38 is switched off, the pressure chamber 44 is relieved via the first control line 45 and the starting line 47 to the return connection 27, so that the return spring 37 pushes the first longitudinal slide 32 together with the drive piston 42 to the left into a rest position, whereby the first control edge 34 interrupts the connection from the inlet connection 24 to the consumer connection 25, while the second control edge 35 relieves the load connection 25 to the return connection 27.

Mit Hilfe des zweiten Vorsteuerventils 39 läßt sich der zweite Längsschieber 32 durch den Antriebskolben 51 in entsprechend gleicher Weise betätigen, so daß die Funktion des zweiten Wegeventils 56 unabhängig von derjenigen des ersten Wegeventils 55 nutzbar ist. Durch die Anordnung zweier 3/2-Wegeventile auf einem gleichen Ventilplatz auf einer Grundplatte lassen sich somit Bauraum und Kosten einsparen und der Funktionsinhalt eines Ventilblocks ausgehend von einer gleichen Grundplatte erhöhen. Durch die Verwendung des Standardgehäuses 14 läßt sich dabei ein hoher Durchfluß erreichen, wie dies sonst bei 5/2-Wegeventilen derselben Baureihe der Fall ist. Durch die integrierte Anordnung beider Vorsteuerventile 38, 39 in dem Vorsteuermodul 12 auf einer einzigen Stirnseite des Standardgehäuses genügt ein einziger elektrischer Steckanschluß 48 für die Ansteuerung beider Wegeventile 55, 56. Das Standardgehäuse 14 und der Vorsteuermodul 12 sind so ausgebildet, daß sie ohne zusätzliche Adapterplatte unmittelbar auf die Grundplatte in einem Ventilträgersystem montiert werden können. Durch die Ausbildung der Antriebskolben 42, 51 als von den Längsschiebern getrennte Bauelemente, welche außerhalb des Standardgehäuses 14 in dem angebauten Vorsteuergehäuse 43 bzw. Deckel 13 gelagert sind, werden störende Einflüsse auf die Lagerung und Führung der Längsschieber 32, 33 vermieden.With the help of the second pilot valve 39, the second longitudinal slide 32 can be actuated in a corresponding manner by the drive piston 51, so that the function of the second directional valve 56 can be used independently of that of the first directional valve 55. By arranging two 3/2-way valves on the same valve position on a base plate, installation space and costs can be saved and the functional content of a valve block can be increased starting from the same base plate. By using the standard housing 14, a high flow can be achieved, as is otherwise the case with 5/2-way valves of the same series. Due to the integrated arrangement of both pilot valves 38, 39 in the pilot module 12 on a single end face of the standard housing, a single electrical plug connection 48 is sufficient for controlling both directional control valves 55, 56. The standard housing 14 and the pilot module 12 are like this trained that they can be mounted directly on the base plate in a valve carrier system without additional adapter plate. The design of the drive pistons 42, 51 as components which are separate from the longitudinal slides and which are mounted outside of the standard housing 14 in the attached pilot control housing 43 or cover 13 prevents disruptive influences on the storage and guidance of the longitudinal slides 32, 33.

Die Figur 2 zeigt eine zweite elektropneumatiche Ventileinrichtung 60, die sich von derjenigen nach Figur 1 lediglich dadurch unterscheidet, daß sie zwei andere, untereinander gleiche Längsschieber 61, 62 verwendet. Bei diesen Längsschiebern 61, 62 ist die Lage der Steuerkanten 34, 35 so gewählt, daß beide Ventile die Funktion "Normal-Offen" haben. Dies bedeutet, daß bei nicht erregten Ventilen die Verbindung vom Zulaufanschluß 24 zum Verbraucheranschluß 26 geöffnet ist, während die Verbindung vom letzterem zum Rücklaufanschluß 28 blockiert ist; dies ist in Figur 2 mit den in Ruhestellung befindlichen Längsschiebern 61, 62 dargestellt. Bei der Ventileinrichtung 60 sind somit beide Wegeventile für eine Funktion "Normal-Offen" ausgeführt. Die Wirkungsweise der Ventileinrichtung 60 entspricht im übrigen sinngemäß derjenigen der Ventileinrichtung 10.FIG. 2 shows a second electropneumatic valve device 60 which differs from that according to FIG. 1 only in that it uses two other longitudinal slides 61, 62 which are identical to one another. In the case of these longitudinal slides 61, 62, the position of the control edges 34, 35 is selected so that both valves have the "normally open" function. This means that when the valves are not energized, the connection from the inlet connection 24 to the consumer connection 26 is open, while the connection from the latter to the return connection 28 is blocked; this is shown in FIG. 2 with the longitudinal slides 61, 62 in the rest position. In the valve device 60, therefore, both directional control valves are designed for a “normally open” function. The mode of operation of the valve device 60 corresponds otherwise to that of the valve device 10.

Die Figur 3 zeigt vereinfacht eine dritte Ventileinrichtung 70, bei welcher in dem Standardgehäuse 17 im ersten Wegeventil 55 ein erster Längsschieber 32 für die Funktion "Normal-Geschlossen" und im zweiten Wegeventil 56 ein zweiter Längsschieber 62 für die Funktion "Normal-Offen" eingebaut sind. Auf diese Weise können im Ventilmodul 11 unterschiedliche Ventilvarianten realisiert werden.FIG. 3 shows in simplified form a third valve device 70, in which a first longitudinal slide 32 for the "normally closed" function is installed in the standard housing 17 in the first directional valve 55 and a second longitudinal slide 62 for the "normally open" function is installed in the second directional valve 56 are. In this way, different valve variants can be implemented in the valve module 11.

Selbstverständlich sind an den gezeigten Ausführungsformen Änderungen möglich, ohne vom Gedanken der Erfindung abzuweichen. Obwohl die gezeigte Belegung der Anschlüsse besonders vorteilhaft ist, kann das Standardgehäuse 14 auch so verwendet werden, daß der mittlere Anschluß 24 mit R und die beiden Anschlüsse 27, 28 bei Bedarf mit P belegt werden. Auch sind Bauformen möglich, bei denen Längsschieber und Antriebskolben zusammen einstückig ausgebildet werden. Die Lage der Längsschieber 32, 62 in Fig. 3 kann auch vertauscht werden.Of course, changes are possible to the embodiments shown without departing from the spirit of the invention. Although the assignment of the connections shown is particularly advantageous, the standard housing 14 can also be used in such a way that the middle connection 24 is assigned R and the two connections 27, 28 are assigned P if necessary. Designs are also possible in which the longitudinal slide and drive piston are formed in one piece. The position of the longitudinal slide 32, 62 in Fig. 3 can also be interchanged.

Claims (13)

Elektropneumatische Ventileinrichtung zur unabhängigen Steuerung zweier Verbraucheranschlüsse über jeweils eines von zwei elektrisch ansteuerbaren Ventilen von denen jedes Ventil mit 3/2-Funktion ausgebildet ist und ein Steuerglied aufweist, das zwischen einen Zulaufanschluß zur Versorgung beider Ventile mit Druckmittel, den Verbraucheranschluß sowie einen Rücklaufanschluß geschaltet ist und bei der die beiden Ventile und die Anschlüsse im wesentlichen in einer Ebene angeordnet sind, so daß die Ventileinrichtung in einer Ventilbaugruppe zum Anbau auf eine Grundplatte geeignet ist, dadurch gekennzeichnet, daß die Ventileinrichtung (10) ein Standardgehäuse (14) eines 5-Wegeventils aufweist, das eine durchgehende Schieberbohrung (15) hat, in der fünf Kammern (18, 19, 21, 22, 23) nebeneinanderliegend angeordnet sind, die mit mindestens einem Zulaufanschluß (24), den zwei Verbraucheranschlüssen (25, 26) und mindestens einem Rücklaufanschluß (27, 28) verbunden sind, daß in der Schieberbohrung (15) die zwei Steuerglieder gleitend geführt sind, die jeweils als druckmittelbetätigbare Längsschieber (32, 33) ausgebildet sind, die entsprechend ihrer 3/2-Funktion zwei Steuerkanten (34, 35) aufweisen und von jeweils einem Antriebskolben (42, 51) betätigbar sind, daß beide elektromagnetisch betätigbaren Vorsteuerventile (38, 39) zum Steuern der Antriebskolben (42, 51) gemeinsam auf einer einzigen Stirnseite (16) des Standardgehäuses (14) angeordnet sind.Electropneumatic valve device for independent control of two consumer connections via one of two electrically controllable valves, each of which is designed with a 3/2-function and has a control element which is connected between an inlet connection for supplying both valves with pressure medium, the consumer connection and a return connection and in which the two valves and the connections are arranged essentially in one plane, so that the valve device in a valve assembly is suitable for mounting on a base plate, characterized in that the valve device (10) is a standard housing (14) of a 5-way valve has a continuous slide bore (15) in which five chambers (18, 19, 21, 22, 23) are arranged side by side, which with at least one inlet connection (24), the two consumer connections (25, 26) and at least one Return port (27, 28) are connected that in d he slide bore (15) the two control elements are slidably guided, each as a pressure medium operated longitudinal slide (32, 33) are formed, which have two control edges (34, 35) according to their 3/2-function and can be actuated by a drive piston (42, 51) that both electromagnetically actuated pilot valves (38, 39) for controlling the Drive pistons (42, 51) are arranged together on a single end face (16) of the standard housing (14). Ventileinrichtung nach Anspruch 1, dadurch gekennzeichnet, daß am Standardgehäuse (14) die Schieberbohrung (15) zwischen zwei Stirnseiten (16, 17) verläuft, an denen einerseits ein die Vorsteuerventile (38, 39) aufnehmender Vorsteuermodul (12) und andererseits ein Deckel (13) angebaut sind.Valve device according to claim 1, characterized in that on the standard housing (14) the slide bore (15) runs between two end faces (16, 17) on which on the one hand a pilot module (12) receiving the pilot valves (38, 39) and on the other hand a cover ( 13) are attached. Ventileinrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Antriebskolben (42, 51) von den Längsschiebern (32, 33) getrennte Bauelemente sind, und außerhalb des Standardgehäuses (14) in den angebauten Teilen (11, 13) gleitend geführt sind.Valve device according to claim 1 or 2, characterized in that the drive pistons (42, 51) are separate components from the longitudinal slides (32, 33) and are slidably guided outside the standard housing (14) in the attached parts (11, 13). Ventileinrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß an jedem Längsschieber (32, 33) eine Rückstellfeder (37, 37') anliegt, die zusätzlich am Standardgehäuse (14) abgestützt ist.Valve device according to one of claims 1 to 3, characterized in that a restoring spring (37, 37 ') bears on each longitudinal slide (32, 33), which is additionally supported on the standard housing (14). Ventileinrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die wirksame, druckbeaufschlagte Fläche des Antriebskolbens (42, 51) größer ist, als die druckbeaufschlagte Fläche des Längsschiebers (32, 33) in der Kammer (21).Valve device according to one of claims 1 to 4, characterized in that the effective, pressurized area of the drive piston (42, 51) is larger than the pressurized area of the longitudinal slide (32, 33) in the chamber (21). Ventileinrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß im Standardgehäuse (14) von den fünf Anschlüssen der in axialer Richtung gesehen mittig liegende Anschluß (24) für den Zulauf (P) dient, neben dem zu beiden Seiten die Verbraucheranschlüsse (25, 26) liegen, während die beiden Rücklaufanschlüsse (27, 28) außen liegen.Valve device according to one of claims 1 to 5, characterized in that in the standard housing (14) Five connections of the connection (24) for the inlet (P), seen in the axial direction, serve the purpose, next to which the consumer connections (25, 26) are on both sides, while the two return connections (27, 28) are on the outside. Ventileinrichtung nach Anspruch 6, dadurch gekennzeichnet, daß die beiden Verbraucheranschlüsse (25, 26) in eine Querseite (29) des Standardgehäuses (14) verlaufen, während in die andere Querseite (31) der Zulaufanschluß (24) und die beiden Rücklaufanschlüsse (27, 28) verlaufen.Valve device according to claim 6, characterized in that the two consumer connections (25, 26) run in one transverse side (29) of the standard housing (14), while in the other transverse side (31) the inlet connection (24) and the two return connections (27, 28) run. Ventileinrichtung nach einem der Ansprüche 2 bis 7, dadurch gekennzeichnet, daß durch das Standardgehäuse (14) Steuerkanäle (53, 46, 47) verlaufen, von denen einer (53) vom Vorsteuerventil (39) zum Antriebskolben (57) im Deckel (13) führt.Valve device according to one of claims 2 to 7, characterized in that control channels (53, 46, 47) run through the standard housing (14), one of which (53) from the pilot valve (39) to the drive piston (57) in the cover (13). leads. Ventileinrichtung nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß die beiden Längsschieber (31, 32) für eine Funktion Normal-Geschlossen (Fig. 1) ausgebildet sind.Valve device according to one of claims 1 to 8, characterized in that the two longitudinal slides (31, 32) are designed for a function normally closed (Fig. 1). Ventileinrichtung nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß die beiden Längsschieber (61, 62) für eine Funktion Normal-Offen (Fig. 2) ausgebildet sind.Valve device according to one of claims 1 to 8, characterized in that the two longitudinal slides (61, 62) are designed for a function normally open (Fig. 2). Ventileinrichtung nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß ein Längsschieber (62) für eine Funktion Normal-Offen und der andere Längsschieber (32) für eine Funktion Normal-Geschlossen ausgeführt ist.Valve device according to one of claims 1 to 8, characterized in that one longitudinal slide (62) is designed for a function normally open and the other longitudinal slide (32) for a function normally closed. Ventileinrichtung nach einem der Ansprüche 1 bis 11, dadurch gekennzeichnet, daß das Vorsteuergehäuse (43) eine sacklochartige Ausnehmung (41) aufweist, in der der Antriebskolben (42) für den ersten Längsschieber (32) geführt ist.Valve device according to one of claims 1 to 11, characterized in that the pilot housing (43) has a blind hole-like recess (41) in which the drive piston (42) for the first longitudinal slide (32) is guided. Ventileinrichtung nach Anspruch 12, dadurch gekennzeichnet, daß das Vorsteuergehäuse (43) eine sacklochartige Ausnehmung (41) aufweist, in der der Antriebskolben (42) für den ersten Längsschieber (32) geführt ist.Valve device according to claim 12, characterized in that the pilot housing (43) has a blind hole-like recess (41) in which the drive piston (42) for the first longitudinal slide (32) is guided.
EP95106525A 1994-05-07 1995-04-29 Electropneumatic valve assembly Expired - Lifetime EP0686775B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4416285A DE4416285A1 (en) 1994-05-07 1994-05-07 Electropneumatic valve device
DE4416285 1994-05-07

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EP0686775A1 true EP0686775A1 (en) 1995-12-13
EP0686775B1 EP0686775B1 (en) 1998-07-08
EP0686775B2 EP0686775B2 (en) 2001-12-05

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EP95106525A Expired - Lifetime EP0686775B2 (en) 1994-05-07 1995-04-29 Electropneumatic valve assembly

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0819874A3 (en) * 1996-07-09 1998-08-05 Ab Rexroth Mecman Fluid flow control valve device
EP1130273A1 (en) * 2000-02-29 2001-09-05 Ab Rexroth Mecman Multiway valve with a removable exhaust wall
FR2821128A1 (en) * 2001-02-20 2002-08-23 Bosch Gmbh Robert Pneumatic distributor has slide valve with actuating section of greater diameter at one end
EP1036942A3 (en) * 1999-03-18 2003-02-12 Hoerbiger Hydraulik GmbH Control device for a cylinder
DE102005002699A1 (en) * 2005-01-19 2006-07-27 Sauer-Danfoss Aps Bremsventilanordung
WO2009062564A1 (en) * 2007-11-14 2009-05-22 Hydac Filtertechnik Gmbh Hydraulic valve device

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19623446A1 (en) 1996-06-12 1997-12-18 Bosch Gmbh Robert Electropneumatically piloted directional valve
DE19630798A1 (en) * 1996-06-22 1998-01-02 Rexroth Mannesmann Gmbh Pilot control for two hydraulically operated directional valves
NL1003536C2 (en) * 1996-07-08 1998-01-12 Applied Power Inc Control arrangement for double-action hydraulic cylinders

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0139259B1 (en) 1983-10-07 1988-04-27 Deere & Company Valve for the command of fluid flow between a pump, a fluid reservoir and a double acting hydraulic device
DE4020024A1 (en) 1990-06-23 1992-01-02 Bosch Gmbh Robert ELECTROMAGNETICALLY ACTUABLE DIRECTION VALVE
GB2263154A (en) * 1991-12-27 1993-07-14 Mannesmann Ag Valve assembly module
DE4226539A1 (en) 1992-08-11 1994-02-17 Bosch Gmbh Robert Electropneumatic valve assembly
DE4305607A1 (en) * 1993-02-24 1994-08-25 Bosch Gmbh Robert Valve block

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4400760C2 (en) † 1994-01-13 1997-03-27 Festo Kg Multi-way valve

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0139259B1 (en) 1983-10-07 1988-04-27 Deere & Company Valve for the command of fluid flow between a pump, a fluid reservoir and a double acting hydraulic device
DE4020024A1 (en) 1990-06-23 1992-01-02 Bosch Gmbh Robert ELECTROMAGNETICALLY ACTUABLE DIRECTION VALVE
GB2263154A (en) * 1991-12-27 1993-07-14 Mannesmann Ag Valve assembly module
DE4226539A1 (en) 1992-08-11 1994-02-17 Bosch Gmbh Robert Electropneumatic valve assembly
DE4305607A1 (en) * 1993-02-24 1994-08-25 Bosch Gmbh Robert Valve block

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0819874A3 (en) * 1996-07-09 1998-08-05 Ab Rexroth Mecman Fluid flow control valve device
EP1036942A3 (en) * 1999-03-18 2003-02-12 Hoerbiger Hydraulik GmbH Control device for a cylinder
US6561221B1 (en) 1999-03-18 2003-05-13 Hoerbiger Hydraulik Gmbh Control arrangement for a working cylinder
EP1130273A1 (en) * 2000-02-29 2001-09-05 Ab Rexroth Mecman Multiway valve with a removable exhaust wall
FR2821128A1 (en) * 2001-02-20 2002-08-23 Bosch Gmbh Robert Pneumatic distributor has slide valve with actuating section of greater diameter at one end
DE102005002699A1 (en) * 2005-01-19 2006-07-27 Sauer-Danfoss Aps Bremsventilanordung
DE102005002699B4 (en) * 2005-01-19 2011-02-17 Sauer-Danfoss Aps Bremsventilanordung
WO2009062564A1 (en) * 2007-11-14 2009-05-22 Hydac Filtertechnik Gmbh Hydraulic valve device
US8479769B2 (en) 2007-11-14 2013-07-09 Hydac Filtertechnik Gmbh Hydraulic valve device

Also Published As

Publication number Publication date
DE4416285A1 (en) 1995-11-09
EP0686775B1 (en) 1998-07-08
EP0686775B2 (en) 2001-12-05
DE59502737D1 (en) 1998-08-13

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