DE102010044442B4 - Electromagnet valve device with two working connections - Google Patents

Abstract

Electromagnet valve device, in particular a pneumatic valve, having an armature unit (9) which can be moved relative thereto in an axial direction between a first and a second switching position and energizes a fluid flow between an inlet (33) and a valve outlet, wherein the valve outlet comprises a pair of outlets (29, 30), characterized in that the outlets (29, 30) in the second switching position against each other and with respect to the inlet (33) by means of the anchor unit ( 9) are sealed, and that the armature unit (9), in the case that at the outlets (29, 30) bears the same pressure, is pressure balanced in the axial direction, so that a balance of forces with respect to the opposite in axial directions on the Anchor unit (9) acting pressure forces results.

Description

The invention relates to an electromagnetic valve device, in particular a pneumatic valve, according to the preamble of claim 1.

From the DE 198 48 919 A1 An electromagnetic valve device is known. The basic principle known from this document is that a solenoid, which is moved electromagnetically by energizing a (normally stationary) winding, suitably opens or closes a valve seat of the solenoid valve, thereby forming a fluid flow between a so-called supply connection (designated as P in the cited US Pat Reference to the prior art) and a so-called working port (A) opens or closes. Such a configuration is also known as a 2/2-way valve, which from the DE 198 48 919 A1 known valve additionally discloses a vent port (E), which, if it is not closed, as a second outlet for the realization of a 3/2-way valve can be understood.

However, such a configuration for realizing a solenoid valve device having two outlets is complicated in two ways; on the one hand, as in the figures of DE 198 48 919 A1 shown, the other outlet E in the axial direction and opposite the supply connection to be configured separately, on the other hand, then at this point the connection or tap nachgeschalteter units (parallel to the working port A) to take place. Also, both outlets (E + A) can not be connected together to the supply terminal.

Since, however, there is a need, for example in the automotive field, for solenoid valve devices which have more than one working connection, which is supplied controlled by a common supply connection, and to realize and concretise this plurality of working connections simply and with little effort is the applicant in the DE 20 2009 002 629 U1 proposed a correspondingly optimized solenoid valve. This is characterized in that the valve outlet is realized as a pair in the axial direction of adjacent, ie spaced, outlets which are sealed against each other by means of a rubber-elastic sealing unit provided in the axial direction between the pair of outlets. This rubber unit acts as a check valve that ensures that the compressed air can only flow from the valve inlet into the pair of outlets and not back.

From the DE 10 2009 007 118 A1 as well as the DE 10 2007 037 220 A1 are known in the axial direction pressure balanced valve devices.

Based on the aforementioned prior art, the present invention seeks to provide an electromagnetic valve device in the form of a 3/2-way valve, which allows with even simpler means a plurality of working ports, which are easy to contact. The valve device should be structurally simple and be manufactured with little effort. The electric coil should be dimensioned as small as possible. In addition, should preferably be able to dispense with a separate from the anchor or core, exclusively the pair of outlets associated rubber-elastic sealing unit (check valve). Even more preferably, the valve device should be able to flow in both directions.

This object is achieved by the solenoid valve device having the features of the main claim; advantageous developments of the invention are specified in the subclaims. All combinations of at least two features disclosed in the description, the claims and / or the figures fall within the scope of the invention. In order to avoid repetition, features disclosed in accordance with the device should also be regarded as disclosed according to the method and be able to be claimed. Likewise, according to the method disclosed features should be considered as device disclosed and claimed claimable.

According to the invention, the valve outlet realized as a pair of outlets is directly closed by an axial adjustment movement of the one-part or multi-part armature unit in such a way that the outlets are sealed against each other (and also opposite the valve inlet) and not by one of the armature unit as in the prior art a core assembly separate rubber-elastic sealing unit (check valve). In other words, the outlets are directly sealed against each other by the axial adjustment movement of the armature unit, whereby no separate movable sealing unit must be provided. The trained according to the concept of the invention solenoid valve is ideal valve in electronic brake systems in motor vehicles.

Basically, it is possible by the use of trained according to the concept of the invention valve, in applications with two working circuits instead of previously two valves exclusively use a designed according to the concept of the invention solenoid valve and each circuit of the application with one of the two outlets of the valve connect to. This can significantly reduce costs.

To realize a valve device as small as possible, the invention provides that the armature unit in the second Switching position at the same pressure applied to the outlets in the axial direction, at least approximately, preferably completely, pressure-balanced, so that a balance of forces with respect to the acting pressure forces results. In order to achieve the axial pressure balance, it is preferred if two mutually sealed back spaces are provided on the side facing away from the outlets and the inlet side of the anchor unit, which are bounded by the armature unit in the axial direction. One of these two return chambers is preferably pneumatically connected in the second switching position with only one of the two outlets and the other of the two return chambers is preferably pneumatically connected to the inlet in the second switching position. In order now to achieve the axial pressure balance in the second switching position, it is preferred if, at least approximately, preferably exactly within the usual tolerances, the axial projection of that back space, which is pneumatically connected to one of the two outlets, the effective area corresponds to which is pressurized on the opposite side of the rear space (ie valve seat side) of the armature unit in the second switching position of the two outlets. At the same time, the axial projection surface of the pneumatically connected to the rear space of the rear projection should correspond to the axial projection surface which is acted upon on the side facing away from the back space side of the armature unit of the pressure applied to the inlet. It is especially expedient if the effective area, bounded by the anchor unit, of the back space connected to one of the outlets corresponds to the area bounded by an outer sealing line diameter of the valve seat. In this case, the outer diameter of the sealing line is understood to be that diameter of the sealing line with which, in the case of the radial spacing of the outlets, the radially outer one of the two outlets is sealed with the valve seal when the valve seat cooperates.

In other words, it is provided in a trained according to the concept of the invention valve, in the second switching position, provided that at both outlets the same pressure is applied to realize a compressive force balance in the axial direction, so that the electromagnetic forces substantially only Spring force of a valve spring (return spring) and possibly have to overcome friction losses. This allows a small-volume design of the electromagnetically active components.

Of course, the trained according to the concept of the invention valve can also be used when the outlets not the same pressure is applied. In this case, there is not an equilibrium of forces, as in the case of equal pressures at the outlets in the axial direction, but the axial pressure difference is dependent on the pressure difference of the fluid present at the outlets (in particular gas, preferably compressed air).

In principle, an electromagnetic valve device designed according to the concept of the invention can be realized in two different basic configurations, namely in a first configuration in which the pair of outlets are opened in an electroless zero position or closed in an electroless zero position according to an alternative configuration. Overall, a trained according to the concept of the invention solenoid valve can be realized extremely kleinbauend and cost.

The immediate sealing of the outlets against each other by means of the anchor unit allows an advantageous development of the invention, according to which the valve device in the first switching position, ie when the valve inlet is pneumatically connected to the valve outlet, can be flowed through in both directions, so that it in the the first switching position is possible, that compressed gas, in particular compressed air, flows from the outlet channels subsequent to the outlets back through the outlets in the direction of the valve inlet. On a valve provided in the check valve is therefore deliberately omitted. This expands the capabilities of the solenoid valve assembly - so the pair of outlets can have a pair of inlets and the single valve inlet can form a single outlet.

With regard to the arrangement of a valve seat and a valve seal which can be adjusted relative thereto, which in the first switching position of the solenoid valve sealingly cooperates with the valve seat and in this way not only seals the valve inlet of the pair of outlets, but also seals the outlets against each other, There are two different configurations. According to a first preferred configuration, the valve seat is stationary, i. H. not arranged adjustable by means of the armature unit, wherein the valve seal for cooperation with the stationary valve seat is part of the anchor unit and is axially adjustable together with this. According to a second configuration, the valve seat is part of the armature unit and together with this axially adjustable and the valve seal is arranged stationary.

It is particularly useful, the outlets in contrast to DE 20 2009 002 629 U1 radially adjacent, ie with radial distance to each other or to arrange on different radii, wherein it is even more preferable to arrange the outlets in the same axial position, ie in the same plane and not axially offset or adjacent to each other. This is a simpler way constructive design of sealing in the second switching position sealingly cooperating with the outlets anchor unit possible. Particularly preferably, the two outlets are arranged coaxially to each other, such that a centric, preferably circular contoured (inner) outlet is provided, which is surrounded by a radial distance from an annular (outer) outlet. Advantageously, the inner outlet receives the longitudinal center axis of the core assembly or is centrally penetrated by this. Due to the concentric arrangement of the outlets, leakage during operation can be avoided, as it would come in an unavoidable rotation of the armature unit in a non-concentric arrangement of the outlets to multiple seats impressions. The coaxial arrangement of the connections, however, inevitably produces a large in relation to the nominal size sealing surface, which requires large spring forces and high magnetic forces without further action. This can, as will be explained later, be counteracted by an at least approximately pressure balance in the axial direction.

A refinement of the invention is advantageous according to which the outlet channels assigned to the outlets extend in the axial direction and are preferably supplied from the radial direction in the region of their end remote from the anchor unit. As will be explained later, this makes it possible to easily integrate the outlets with associated outlet channels into a core assembly, in particular into an injection-molded part of the core assembly.

It has proved particularly expedient instead of an alternatively realizable one-piece armature unit to have a multi-part armature unit comprising an armature sleeve and a unit arranged therein which is either fixedly connected to the armature sleeve or which is preferred relative to the armature sleeve, preferably, in particular the provision of at least one spring, damped and / or sprung, is adjustable. In the case of an adjustable unit relative to the armature sleeve, this can be positively influenced by a corresponding arrangement of a spring acting on the core assembly (support spring) in order to minimize the required magnetic forces and / or positively influence the opening or closing time , In a relatively adjustable arrangement, the unit is preferably coupled to the armature sleeve in such a way that the armature sleeve entrains the unit during an axial adjustment movement, in particular in that the unit is supported on the armature sleeve via a support spring.

It is conceivable to dispense with a support spring for damping the Relativverstellbewegung unit and anchor sleeve to dispense, especially if the unit is fixed relative to the anchor sleeve immovable in this, for example by caulking.

The unit may have different tasks depending on the configuration of the solenoid valve device. According to a first configuration, it is a carrier (seal holder) of the one-part or multi-part valve seal, which in this case belongs to the armature unit and cooperates with the stationary valve seat in the second switching position. According to the alternative second configuration, the unit supports or directly projects the valve seat, in which case the valve seat is part of the armature unit and in the second switching position cooperates with the stationary valve seal to seal the outlets against each other as well as from the valve inlet.

As already indicated above, it is particularly expedient, in particular in the case of a variant of the valve which is open in the currentless zero position, to provide a support spring which acts on the unit in the direction of the pair of outlets by spring force. In the case of the formation of the valve in the normally closed variant, the actual core (preferably without an encapsulation) and the valve spring to be arranged on the side facing away from the valve seat side of the armature unit, wherein the valve spring acts on the armature unit in the direction of the valve seat. In this embodiment, the core is preferably not formed as a sleeve and / or not molded.

In order to prevent the anchor unit received in the anchor sleeve from falling out of the anchor sleeve during assembly, the unit is in development of the invention against such falling out with appropriate means, for example in the form of cooperating with the anchor sleeve snap hook secured. Additionally or alternatively, the means preferably prevent a concern of the valve seal on the valve seat of the second switching position.

In order to seal a rear space, which is delimited by the end of the pair of outlets facing away from the adjustable relative to the armature sleeve unit from one, preferably axially spaced and radially further outward rear space bounded by the side facing away from the outlet end face of the anchor sleeve, There are several options. For this purpose, it is particularly expedient to provide a ring seal which is preferably received in an annular groove of the unit and which slides along a sealing surface during an axial adjustment movement, this sealing surface preferably being formed by an axial extension of an armature guide tube guiding the anchor sleeve. To achieve a pressure balance it is expedient if the sealing diameter of one of the two back spaces against each other and arranged on the received in the anchor sleeve unit and applied to a sealing surface ring seal at least approximately, in particular within the tolerances exactly corresponds to an outer seal diameter of the valve seat. In addition or as an alternative to such a ring seal, a membrane (sealing membrane) and / or a bellows can be provided for sealing the back spaces from one another. In the closed state of the valve device, the back space bounded by the front side of the unit is preferably pneumatically connected to one of the outlets and the other, bounded by the anchor sleeve back space with the valve inlet, or vice versa, pneumatically connected, in particular thus one, at least approximately, pressure equalization in the axial To realize direction.

With regard to a structurally particularly simple embodiment of the solenoid valve device, it is preferred to provide a magnetic flux in the axial direction conductive core assembly, which comprises a plastic material, with which the sleeve is molded, in addition to a magnetically conductive, preferably metallic, sleeve (Also) is provided inside the sleeve, wherein the plastic material depending on the configuration of the solenoid valve device carries the valve seal or forms the valve seat or carries. It is particularly expedient if the pair of outlets is provided in the plastic material, with an outlet channel extending from each outlet in the axial direction, which consequently runs parallel, at least in sections, in the axial direction and preferably radially in a lower region of the plastic material outside the sleeve Direction pneumatically contacted or guided to radial working ports.

Further advantages, features and details of the invention will become apparent from the following description of a preferred embodiment of the invention and from the drawings.

These show in:

1 a preferred embodiment of a trained according to the concept of the invention solenoid valve device in the open state, wherein the device is configured as normally open, and

2 an illustration of the valve device according to 1 in the second (closed) switching position.

In the figures, like elements and elements having the same function are denoted by the same reference numerals.

Hereinafter, the structure and the function of a pneumatic valve designed as a solenoid valve device 1 ) by way of example in the design of the currentless zero position opened). Alternatively, a design without current zero position can be realized closed.

The solenoid valve device 1 includes as important components one of an armature guide tube 2 interspersed housing 3 , a core assembly 4 a yoke 5 and an electric coil unit 6 which in turn consists of a bobbin, preferably designed as a plastic injection molded part 7 and a winding wound thereon 8th consists.

Inside the armature guide tube 2 is axially adjustable an anchor unit 9 guided axially movable. The anchor unit 9 includes next to one, here metallic anchor sleeve 10 an axially adjustable recorded unit 11 , which is formed in the embodiment shown as a seal holder, which is a valve seal 12 for interaction with a static valve seat 13 serves as part of the core assembly 4 is. The valve seal 12 is pressure-tight with the trained as a seal holder unit 11 connected, for example by way of a multi-component injection molding or by gluing, etc. Important in the embodiment shown is that formed as a seal holder unit 11 , which may alternatively be formed as a valve seat or valve seat holder, here together with the valve seal 12 , inside the anchor sleeve 10 is guided axially displaceable. As a one-sided stop against falling out of the unit 11 from the anchor sleeve 10 in the assembly serve means 14 For example, as a snap hook on the of the valve seal 12 remote end of the unit 11 may be provided to as a stop with the anchor sleeve 10 work together. In the snap hook is a resilient part in the radial direction, which axial insertion of the unit 11 in the anchor sleeve 10 allows and flattens in the final assembly position radially outward and the anchor sleeve 10 engages behind. It is preferred if the snap hooks not shown in an inner recess in the anchor sleeve 10 engage, but are arranged behind the anchor sleeve and are supported axially on this (rear) end face. Instead of a arranged on the unit radial snap mechanism can of course also be provided on the anchor sleeve, a snap mechanism which springs in the radial direction inwards and preferably engages in a radially inwardly directed recess of the unit in the final assembly position.

By the bias of a radially between the anchor sleeve 10 and the unit 11 recorded support spring 15 becomes the unit 11 inside the anchor sleeve 10 against the funds 14 pulled while moving in the direction of the core assembly 4 spring force. For this purpose, the support spring is supported 15 at one end on an inner ring shoulder 16 the anchor sleeve 10 and at the other end on a ring collar 17 the unit 11 from.

As can be seen from the figures, is in a circumferential groove 18 in the area of the of the core assembly 4 opposite end of the unit 11 a ring seal 19 taken up, opposite to a sealing surface 20 forming armature guide tube 2 , more precisely one compared to an anchor sleeve 10 receiving cylindrical section constricted cylindrical axial extension 21 the armature guide tube 2 is slidable. As a result, it seals one from an upper (from the core assembly 4 facing away) front side 22 and the armature guide tube 2 limited back room 23 opposite a further, radially outwardly and axially staggered rear space 24 coming from the upper end of the anchor sleeve 10 , the armature guide tube 2 and the lateral surface of the unit 11 is limited.

As mentioned, in the embodiment shown is a stationary valve seat 13 provided and at the core assembly 4 educated. The valve seat becomes more precise 13 formed by a plastic material 27 trained overmolding 25 a, here metallic, sleeve 26 , The plastic material 27 extends into the interior of the sleeve guiding the magnetic flux, between the sleeve and the anchor sleeve 10 in the first switching position shown a working air gap 28 is trained.

In the plastic material 27 is a pair of outlets forming the valve outlet 29 . 30 formed by each of which an outlet channel 31 . 32 runs in the axial direction. The one with the reference number 31 marked outlet channel is arranged centrally and lies on the longitudinal central axis of the core assembly 4 , The one with the reference number 32 characterized outlet channel is located radially outward, ie spaced from the outlet channel 31 , The centric outlet 29 is contoured substantially cylindrical, whereas the radially outer outlet 30 contoured in a ring and coaxial with the centric outlet 29 is arranged. The inner outlet 29 is pneumatic with a first radial working port A ₁ and the outer outlet 30 connected to a second radial working port A ₂ , which is arranged offset axially and in the circumferential direction (here, for example, by 180 °) to the first working port A ₁ .

The preferably cylindrically contoured radially outer outlet channel 32 thus opens into an annular outlet, which is arranged concentrically to a central outlet.

The valve seat 13 forms the sealing contours for the outlets 29 . 30 (Pair of outlets). In this case, there is an inner seal diameter D _i for sealing the centric outlet 29 and an outer diameter line diameter for sealing the outer outlet 30 , This is a prerequisite for a desired pressure and force compensation, which will be explained later. As mentioned forms the encapsulation 25 the air ducts for the outlets 29 . 30 and additionally for an inlet 33 to the axially an inlet channel 34 within the plastic material 26 followed. The inlet channel 34 is pneumatically connected to an axial supply port P. About axially spaced seals 35 . 36 . 37 is the plastic material 27 opposite an installation space 38 or the armature guide tube 2 sealed. The armature guide tube 2 in turn seals with the help of a seal 39 opposite the installation space 38 pressure-tight.

In the de-energized zero position according to 1 pushes a valve spring 40 , which at one end to the anchor sleeve 10 and at the other end at the bottom of a depression in the sleeve 26 the core assembly 4 supports, the anchor unit 9 in one of the core assembly 4 opposite position, where the unit 11 from the media 14 is dragged along. In this first switching position then the inlet 23 and the axially and radially spaced therefrom outlets 29 . 30 interconnected and can be flowed through in both directions. Via an axial channel 41 in the seal, attached to another axial channel 42 in the unit 11 connects, is in the first switching position of the working air gap 28 pneumatically with the backspace 23 connected. About a guide gap 43 radially between the armature guide tube 2 and the anchor sleeve 10 there is a pneumatic connection between the with the reference numeral 24 marked rear space and the working air gap 28 , or in the second switching position between a radially inwardly bounded by the outer sealing line of the valve seat annulus, in which the inlet 33 flows and the back room 24 ,

In the in 2 shown second (here energized) switching position is the winding 8th the coil unit 6 energized, resulting in the so-called iron circle, formed by the housing 3 , the yoke 5 , the sleeve 26 and the anchor sleeve 10 forming a magnetic field through which in the working air gap 28 between the anchor unit 9 and the core assembly 4 a magnetic force is created trying to break the working air gap 28 close. The design of the spring force of the valve spring 40 is preferably less than the magnetic force.

By completely closing the working air gap 28 becomes the unit 11 together with the valve seal 12 axially in the anchor sleeve 10 towards the core assembly 4 postponed. The support spring 15 is thereby stretched and enters positively into the balance of power, which is reflected in the fall of the anchor unit 9 in the electroless zero position by reducing the fall time positively noticeable. By sprung moving the unit 11 (here seal holder) with seal 12 in the anchor sleeve 10 in particular, the load on the valve seal 12 and the wear between the valve seal 12 and the valve seat 13 Significantly reduced during dynamic impact and improved system life.

It can be seen that in the second switching position, ie in the closed state of the inlet 33 opposite the outlets 29 . 30 is sealed and that also the outlets 29 . 30 against each other directly through the interaction of the seal 12 with the valve seat 13 in a region radially between the outlets 29 . 30 sealed against each other. The axial channel 41 inside the seal 12 In the closed second switching position, it aligns with the radially outer outlet 30 (alternatively with the inner outlet 29 - not shown), causing this pneumatically with the backspace 23 connected is. The seal diameter D _{D of} the ring seal 19 corresponds to the outer seal diameter D _{a of} the valve seat 13 , In one the support spring 15 receiving annulus 44 that is radial between the unit 11 and the anchor sleeve 10 is formed prevails in the first switching position of the inlet 33 applied pressure. Inside the backspace 23 So prevails in the second switching position of the outer outlet 30 applied pressure, whereas in the reference numeral 24 characterized back space, of the anchor sleeve 10 axially limited at the inlet 33 applied pressure prevails. When considering the balance of forces this leads to the fact that in the case of the outlets 29 . 30 the same pressure is applied overall the anchor unit 9 is pressure balanced in the axial direction and in the case of different pressures at the outlets 29 . 30 at least approximately or partially pressure balance prevails. This allows the solenoid valve device 1 be designed particularly efficient and small-sized and has essentially apply only the spring and sealing forces.

At the same pressures at the outlets 29 . 30 in an area radially within the outer seal diameter D _a in both axial directions on the armature unit 9 the one at the outlets 29 . 30 applied pressure acts and in an area radially outside of the outer seal diameter D _a at the inlet 33 applied pressure in both axial directions.

In case of different pressures at the outlets 29 . 30 acts in the drawing plane down in the backspace 23 at the radially outer outlet 30 applied pressure and in the opposite direction acts in a region radially between the inner seal diameter D _i and the outer seal diameter D _a also at the outlet 30 applied pressure and in a region radially within the inner seal diameter D _i at the inner outlet 29 applied pressure. On the pressure conditions radially outside the outer sealing diameter D _a , this has no effect.

LIST OF REFERENCE NUMBERS

1

Solenoid valve device

2

Armature guide tube

3

casing

4

core assembly

5

yoke

6

coil unit

7

coil carrier

8th

winding

9

anchor unit

10

anchor sleeve

11

unit

12

valve seal

13

valve seat

14

medium

15

supporting spring

16

annular shoulder

17

annular shoulder

18

circumferential groove

19

ring seal

20

sealing surface

21

axial extension

22

front

23

backcourt

24

backcourt

25

encapsulation

26

shell

27

Plastic material

28

Working air gap

29

outlet

30

outlet

31

exhaust port

32

exhaust port

33

inlet

34

inlet channel

35

poetry

36

poetry

37

poetry

38

installation space

39

poetry

40

valve spring

41

axial

42

axial

43

guide gap

44

annulus

D _D

Seal diameter

D _F

Guide diameter

D _i

inner seal diameter

D _a

outer seal diameter

P

supply terminal

A ₁

first work connection

A ₂

second work connection

Claims (12)

Electromagnet valve device, in particular pneumatic valve, with one by energizing a stationary coil unit ( 6 ) relative to this in an axial direction between a first and a second switching position movable anchor unit ( 9 ) for controllably opening and / or closing fluid flow between an inlet ( 33 ) and a valve outlet, the valve outlet having a pair of outlets ( 29 . 30 ), characterized in that the outlets ( 29 . 30 ) in the second switching position against each other and with respect to the inlet ( 33 ) by means of the anchor unit ( 9 ) and that the anchor unit ( 9 ), in the event that at the outlets ( 29 . 30 ) the same pressure is applied, is pressure-balanced in the axial direction, so that a balance of forces with respect to the opposing axial directions on the anchor unit ( 9 ) acting pressure forces results. Electromagnet valve device according to claim 1, characterized in that the valve device ( 1 ) in the first switching position of the anchor unit ( 9 ) from the inlet ( 33 ) to the pair of outlets ( 29 . 30 ) and in the opposite direction can be flowed through. Electromagnetic valve device according to one of claims 1 or 2, characterized in that a stationary valve seat ( 13 ) is provided, which in the second switching position with at least one valve seal ( 12 ) of the anchor unit ( 9 ) or that a valve seat ( 13 ) at the anchor unit ( 9 ) provided with at least one stationary valve seal ( 12 ) cooperates sealingly in the second switching position. Electromagnetic valve device according to one of the preceding claims, characterized in that the outlets ( 29 . 30 ) offset in the radial direction to each other, are arranged. Electromagnetic valve device according to one of the preceding claims, characterized in that to each outlet ( 29 . 30 ) an outlet channel ( 31 . 32 ) and that the outlet channels ( 31 . 32 ) parallel to each other and in the axial direction. Electromagnet valve device according to one of the preceding claims, characterized in that the armature unit ( 9 ) an anchor sleeve ( 10 ) and arranged therein as a support for a one- or multi-part valve seal or as a valve seat carrier formed or the valve seat directly forming unit ( 11 ), either fixed to the anchor sleeve ( 10 ) or relative to the anchor sleeve ( 10 ) is adjustable. Electromagnet valve device according to claim 6, characterized in that the unit ( 11 ) as either the at least one valve seal ( 12 ) for sealing engagement with the static valve seat ( 13 ) in the second switching position bearing seal holder or as an adjustable valve seat ( 13 ) is designed to cooperate with the at least one stationary valve seal. Electromagnetic valve device according to one of claims 6 or 7, characterized in that the unit ( 11 ) over one on the anchor sleeve ( 10 ) supporting supporting spring ( 15 ) towards the pair of outlets ( 29 . 30 ) is spring-loaded. Electromagnetic valve device according to claim 8, characterized in that the unit ( 11 ) Medium ( 14 ) for preventing the unit from falling out ( 11 ) from the anchor sleeve ( 10 ) assigned. Electromagnetic valve device according to one of claims 6 to 9, characterized in that on the unit ( 11 ) a bellows or a membrane or a when adjusting the anchor unit ( 9 ) along a sealing surface ( 20 ) sealingly sliding ring seal ( 19 ) for sealing one of the pair of outlets ( 29 . 30 ) facing away from the front side ( 22 ) the unit ( 11 ) limited backspace ( 23 ) opposite one of the pair of outlets ( 29 . 30 ) facing away from the front side ( 22 ) the anchor sleeve ( 10 ) limited backspace ( 24 ) is provided. Electromagnet valve device according to claim 10, characterized in that in the second switching position of the front side ( 22 ) the unit ( 11 ) limited back space ( 23 ) pneumatically with one of the two outlets ( 29 . 30 ) and of the front side of the anchor sleeve ( 10 ) limited back space ( 24 ) with the inlet ( 33 ) are pneumatically connected. Electromagnet valve device according to one of the preceding claims, characterized in that a core assembly conducting the magnetic carbon black in the axial direction ( 4 ) is provided, which is a magnetically conductive sleeve ( 26 ) made of plastic material ( 27 ) in which the pair of outlets ( 29 . 30 ) is introduced, of which in each case an outlet channel ( 31 . 32 ) inside the Sleeve ( 26 ) in the axial direction in the plastic material ( 27 ) runs.

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