SOLENOID VALVE DEVICE FOR A PRESSURE-COMPENSATED SOLENOID VALVE, PRESSURE-COMPENSATED SOLENOID VALVE, SOLENOID VALVE SYSTEM, AND METHOD USING THE SOLENOID VALVE DEVICE

Abstract

A solenoid valve device for a pressure-compensated solenoid valve, in particular a pressure-compensating solenoid valve device, has a magnet part including at least one magnetic coil winding and preferably at least one magnetic core arranged at least partially in an interior of the magnetic coil winding, and has a valve part including at least one tappet unit, which is at least configured to control at least one flow-through path through the solenoid valve and which is at least configured to interact with a magnetic field generated within the magnet part, at least for a generation of at least one movement of the tappet unit, wherein the magnet part and the valve part form separable, independently functional modules which are in particular free of shared functional components, such as a shared magnet armature.

Claims

1. A solenoid valve device for a pressure-compensated solenoid valve, in particular a pressure-compensating solenoid valve device, having a magnet part comprising at least one magnetic coil winding and preferably at least one magnetic core arranged at least partially in an interior of the magnetic coil winding, and having a valve part comprising at least one tappet unit, which is at least configured to control at least one flow-through path through the solenoid valve and which is at least configured to interact with a magnetic field generated within the magnet part, at least for a generation of at least one movement of the tappet unit, wherein the magnet part and the valve part form separable, independently functional modules which are in particular free of shared functional components, such as a shared magnet armature.

2. The solenoid valve device according to claim 1, wherein the valve part is at least substantially free of components at least partially engaging in the magnet part in at least one operation state.

3. The solenoid valve device according to claim 1, wherein the magnet part is at least substantially free of movably supported components and/or of components which at least partially engage in the valve part in at least one operation state.

4. The solenoid valve device according to claim 1, wherein the valve part and/or the magnet part have/has a sealing and assembly device which is configured for producing a coupling of the module formed by the valve part and the module formed by the magnet part.

5. The solenoid valve device according to claim 4, wherein at least the module, which is coupled to the valve part and formed by the magnet part, can be decoupled non-destructively from the valve part.

6. The solenoid valve device according to claim 1, wherein the tappet unit at least partially forms a flat armature.

7. The solenoid valve device according to claim 1, wherein the tappet unit comprises at least one pressure compensation element.

8. The solenoid valve device according to claim 1, wherein the tappet unit comprises at least one restoring element, which is supported against the magnet part.

9. The solenoid valve device according to claim 8, wherein the tappet unit comprises at least one pressure compensation element and wherein the restoring element is arranged at least partially within the pressure compensation element.

10. The solenoid valve device according to claim 1, wherein the magnet part and the valve part are at least substantially thermally decoupled from one another.

11. The solenoid valve device according to claim 1, wherein the valve part comprises at least one housing with at least one pressure port, at least one working port, and/or at least one venting port, wherein the pressure port is sealed against the working port and/or the venting port at least by means of a sealing arrangement.

12. The solenoid valve device according to claim 11, wherein at least one seal of the sealing arrangement has a sealing diameter which at least substantially corresponds to an effective diameter of at least one valve seat of the valve part.

13. The solenoid valve device according to claim 1, wherein the sealing arrangement includes at least one sliding seal.

14. The solenoid valve device according to claim 13, wherein the sliding seal includes a sealing ring, which is at least largely formed from an elastomer, wherein the elastomer comprises a thin layer of polytetrafluoroethylene.

15. The solenoid valve device according to claim 1, wherein at least the magnet part is hermetically enclosed by injection-molding.

16. The solenoid valve device according to claim 1, wherein the tappet unit comprises at least one first valve seal and at least one second valve seal, which is in particular spaced apart from the first valve seal along an axis of movement of the tappet unit, wherein the valve seals are configured to block and/or open respectively different flow-through paths through the solenoid valve.

17. A pressure-compensated solenoid valve with a solenoid valve device according to claim 1, further comprising an implementation as a 3/2 NO valve, as a 3/2 NC valve, as a 2/2 NO valve, or as a 2/2 NC valve.

18. A solenoid valve system with a solenoid valve device according to claim 1, having a plurality of at least partially differently implemented magnet parts which can interchangeably be coupled to the valve part and are implemented as a separable module, and/or with a plurality of valve parts which are at least partially implemented differently from one another, can interchangeably be coupled with the magnet part and are implemented as a separable module.

19. A magnet part of the solenoid valve device according to claim 1.

20. A valve part of the solenoid valve device according to claim 1.

21. A method with a solenoid valve device for a pressure-compensated solenoid valve with a pressure-compensating solenoid valve device according claim 1.

Description

DRAWINGS

[0028] Further advantages can be derived from the following description of the drawings. Three exemplary embodiments of the invention are shown in the drawings. The drawings, the description, and the claims contain numerous features in combination. A person skilled in the art will expediently also consider the features individually and combine them into meaningful other combinations.

[0029] Wherein:

[0030] FIG. 1 a schematic sectional view of a solenoid valve with a solenoid valve device,

[0031] FIG. 2 a schematic sectional view of a sealing ring of a sliding seal of the solenoid valve device,

[0032] FIG. 3 a schematic representation of a solenoid valve system to form various solenoid valves,

[0033] FIG. 4 a flowchart of a method with the solenoid valve,

[0034] FIG. 5 a schematic sectional view of an alternative solenoid valve with an alternative solenoid valve device, and

[0035] FIG. 6 a schematic sectional view of a solenoid valve with another alternative solenoid valve device.

DESCRIPTION OF THE EXEMPLARY EMBODIMENTS

[0036] FIG. 1 shows a solenoid valve 10a. The solenoid valve 10a is in a currentless state. The solenoid valve 10a is realized as a pressure-compensating solenoid valve. The solenoid valve 10a is realized as a 3/2-way valve, The solenoid valve 10a has a pressure-compensating solenoid valve device. The solenoid valve device has a magnet part 12a. The magnet part 12a is configured to generate and/or control a magnetic field. The magnet part 12a forms an independently functioning module 24a. The magnet part 12a is free of movably supported components.

[0037] The magnet part 12a has a magnetic coil winding 14a. The magnetic coil winding 14a is embodied as a magnetic coil winding. Particularly, the magnetic coil 14a winding forms a solenoid 78a. The magnetic coil winding 14a forms an electromagnetic coil. The magnet part 12a comprises a winding carrier 60a. The winding carrier 60a is made of a non-conductive one and/or non-magnetizable plastic. The magnetic coil winding 14a is wound around the winding carrier 60a. The magnetic coil winding 14a and/or the solenoid 78a includes an interior 16a. The interior 16a of the magnetic coil winding 14a comprises a magnetic core 18a. The magnetic core 18a forms a partially interrupted iron circuit. The magnetic core 18a is arranged at least in a center of the solenoid 78a. Alternatively, the interior 16a of the magnetic coil winding 14a and/or the entire magnet part 12a can be formed free of a magnetic core 18a. The magnet part 12a comprises a magnetic circuit 80a. The magnetic circuit 80a is at least partially made of a ferromagnetic and/or a soft magnetic material, particularly of iron. The magnetic circuit 18a includes the magnetic core 80a. The magnetic circuit 80a includes a magnet bracket 68a. The magnet bracket 68a at least partially encloses the magnetic coil winding 14a. The magnetic circuit 80a, particularly the magnet bracket 68a, can alternatively or additionally be at least partially realized as a round magnet housing. The magnetic circuit 80a includes a magnet yoke 62a. The magnet yoke 62a at least partially encloses the magnetic coil winding 14a. The components 18a, 62a, 68a of the magnetic circuit 80a are implemented as separate elements.

[0038] Alternatively, the components 18a, 62a, 68a of the magnetic circuit 80a could be integral with one another. The magnetic circuit 80a is realized as an open magnetic circuit. The magnetic circuit 80a comprises a gap 84a. The magnetic circuit 80a comprises a further gap 86a. The gap 84a of the magnetic circuit 80a is at least partially filled by the winding carrier 60a. The further gap 86a of the magnetic circuit 80a is at least partially filled by the winding carrier 60a. The gaps 84a, 86a, in combination with the iron circuit of the magnetic circuit 80a, produces an inductance of the magnetic circuit 80a. The magnet part 12a has a connection device 54a. The connection device 54a forms a plug connection. The connection device 54a is configured for an electrical connection of the magnet coil winding 14a.

[0039] The solenoid valve device has a control device 56a. The control device 56a is configured for controlling a power supply to the magnet part 12a. The control device 56a is configured for controlling a magnetic field of the magnetic coil winding 14a. The control device 56a is configured for controlling the solenoid valve 10a by means of the magnetic coil winding 14a.

[0040] The solenoid valve device has a valve part 22a. The valve part 22a forms an independently functioning module 26a. The valve part 22a has a tappet unit 20a. The tappet unit 20a is configured to control a flow-through path through the solenoid valve 10a. The tappet unit 20a is configured to interact with a magnetic field generated within the magnet part 12a. The interaction of the tappet unit 20a with the magnetic field of the magnet part 12a is intended to generate a movement of the tappet unit 20. The tappet unit 20a is configured to move towards the magnet part 12a when the magnetic field is activated. The tappet unit 20a is configured to minimize the inductance of the magnetic circuit 80a by means of a movement in the direction of the gaps 84a, 86a of the magnetic circuit 80a of the magnet part 12a. When the magnetic field of the magnet part 12a is activated, the tappet unit 20a is pulled by the magnetic field in the direction of the gaps 84a, 86a.

[0041] The valve part 22a has a housing 34a. The housing 34a forms a valve housing. The tappet unit 20a is movably supported in the housing 34a. The housing 34a is constructed in multiple parts. Separately formed sub-units of the housing 34a are sealed pressure-tight. Alternatively, the housing 34 could be formed in one piece. The valve part 22a comprises a guide element 66a. The guide element 66a is configured for guiding the tappet unit 20a within the valve part 22a. The housing 34a has a pressure port 36a. The pressure port 36a is implemented as a housing opening. The pressure port 36a is arranged on a side of the mounted magnetic valve device facing away from the magnet part 12a. The housing 34a has a working port 38a. The working port 38a is implemented as a housing opening. The housing 34a has a venting port 40a. The venting port 40a is implemented as a housing opening. The valve part 22a has a sealing arrangement 42a. The pressure port 36a is sealed off from the working port 38a by means of the sealing arrangement 42a. The pressure port 36a is sealed off from the venting port 40a by means of the sealing arrangement 42a. The sealing arrangement 42a has a seal 44a. The seal 44a of the sealing arrangement 42a is embodied as a sliding seal 72a. The seal 44a of the sealing arrangement 42a has a seal diameter 46a.

[0042] The solenoid valve device has a valve seal 64a. The valve seal 64a is configured to close or open specific flow-through paths. The valve part 22a has a first valve seat 50a. The valve seal 64a is configured to be seated in a sealing manner on the first valve seat 50a. When the valve seal 64a sits tightly on the first valve seat 50a, the pressure port 36a is closed. When the valve seal 64a is seated in a sealing manner on the first valve seat 50a, a path between the working port 38a and the venting port 40a is opened. The first valve seat 50a has an effective diameter 48a. The effective diameter 48a of the first valve seat 50a corresponds at least substantially to the seal diameter 46a of the seal 44a of the seal arrangement 42a.

[0043] The valve part 22a has a second valve seat 52a. When the valve seal 64a sits sealingly on the second valve seat 52a, the venting port 40a is closed. When the valve seal 64a is seated in a sealing manner on the second valve seat 52a, a path between the working port 38a and the pressure port 36a is open. In the implementation of the solenoid valve 10a shown in FIG. 1, the first valve seat 50a is occupied in the currentless state. In the implementation of the solenoid valve 10a shown in FIG. 1, the second valve seat 52a is occupied in the currentless state. The second valve seat 52a has an effective diameter 88a. The effective diameter 88a of the second valve seat 52a corresponds at least substantially to the effective diameter 48a of the first valve seat 50a. The effective diameter 88a of the second valve seat 52a corresponds at least substantially to the seal diameter 46a of the seal 44a of the seal arrangement 42a.

[0044] In the implementation shown in FIG. 1, the solenoid valve 10a forms a 3/2-NC solenoid valve. Alternatively, the solenoid valve 10a could form a 3/2-NO solenoid valve if the pressure port 36a and the venting port 40a were interchanged. Alternatively, the solenoid valve 10a could form a 2/2-NC solenoid valve if the venting port 40a is closed. Alternatively, the solenoid valve 10a could form a 2/2-NO solenoid valve if the pressure port 36a is closed and if the working port 38a and the venting port 40a are interchanged and/or if the venting port 40a is closed.

[0045] The tappet unit 20a comprises an armature tappet 90a. The armature tappet 90a is formed of a ferromagnetic and/or a soft magnetic material. The armature tappet 90a is formed in one piece. Alternatively, the armature tappet 90a could be formed in multiple parts. The tappet unit 20a comprises the valve seal 64a. The valve seal 64a is pressed onto the armature tappet 90a. The tappet unit 20a forms a flat anchor 70a. The anchor tappet 90a forms the flat anchor 70a. The flat anchor 70a has a disc-shaped end region 82a. The disc-shaped end region 82a is arranged on a side of the armature tappet 90a facing the magnet part 12a. The disc-shaped end region 82a is arranged in a vicinity of the gaps 84a, 86a of the magnetic circuit 80a of the magnet part 12a. Due to the inductance of the gaps 84a, 86a, the disc-shaped end region 82a of the armature tappet 90a is drawn in the direction of the magnet part 12a when the magnet coil winding 14a is energized.

[0046] The tappet unit 20a has a pressure compensation element 30a. The pressure compensation element 30a is realized as a bore in the center of the tappet unit 20a, particularly the armature tappet 90a. The pressure compensation element 30a is configured to set an at least substantially identical pressure on the side of the tappet unit 20a facing the magnet part 12a as on the side facing the pressure port 36a.

[0047] The tappet unit 20a comprises a restoring element 32a. The restoring element 32a is embodied as a compression spring. The restoring element 32a is supported against the magnet part 12a. The restoring element 32a is directly supported against the magnetic core 18a of the magnet part 12a. The restoring element 32a is configured to push the tappet unit 20a away from the magnet part 12a. It is further proposed that the restoring element 32a is partially arranged within the pressure compensation element 30a. The pressure compensation element 30a comprises a receiving area 100a. The receiving area 100a of the pressure compensation element 30a is implemented as a widened section of the pressure compensation element 30a. The receiving area 100a of the pressure compensation element 30a forms a shoulder 102a. The restoring element 32a is supported against the shoulder 102a of the pressure compensation element 30a.

[0048] The magnet part 12a and the valve part 22a form separable modules 24a, 26a. The magnet part 12a and the valve part 22a form independently functional modules 24a, 26a. The modules 24a, 26a formed by the magnet part 12a and the valve part 22a are free of shared functional components. The valve part 22a is at least substantially free of components which at least partially engage in the magnet part 12a in at least one operation state. The magnet part 12a is at least substantially free of components which at least partially engage in the valve part 22a in at least one operation state.

[0049] The magnet part 12a and the valve part 22a can be coupled to one another. The magnet part 12a and the valve part 22a can be captively coupled to one another. In the implementation shown in FIG. 1, the magnet part 12a is coupled to the valve part 22a, particularly captively. The module 24a, which is coupled to the valve part 22a and formed by the magnet part 12a, can be decoupled from the valve part 22a in a non-destructive manner. The magnet part 12a and the valve part 22a are at least substantially thermally decoupled from one another. The magnet part 12a and the valve part 22a, when coupled to one another, are at least substantially thermally decoupled from one another. The valve part 22a comprises a sealing and assembly device 28a. The magnet part 12a comprises a sealing and assembly device 28a. The sealing and assembly device 28a is configured to produce a coupling between the module 26a formed by the valve part 22a and the module 24a formed by the magnet part 12a. The sealing and assembly device 28a comprises respective coupling elements 92a, 94a. A coupling element 92a of the sealing and assembly device 28a is associated with the valve part 22a. Another coupling element 94a is associated with the magnet part 12a. The respective coupling elements 92a, 94a form a positive connection. The sealing and assembly device 28a forms a detachable, captive, and tight coupling of the magnet part 12a to the valve part 22a. The sealing and assembly device 28a comprises a sealing element 96a. The sealing element 96a is configured to produce a pressure-tight coupling between the magnet part 12a and the valve part 22a. The sealing element 96a is configured to seal a cavity 104a of the valve part 22a, which cavity is connected to the pressure port 36a via the pressure compensation element 30a, in a pressure-tight manner against the magnet part 12a.

[0050] FIG. 2 shows a schematic section through a sealing ring 76a of the sliding seal 72a. The sliding seal 72a includes the sealing ring 76a. The sealing ring 76a is formed from an elastomer. The sealing ring 76a has a surface coating 110a. The surface coating 110a forms a thin layer 74a. The thin layer 74a is formed from a polytetrafluoroethylene. The thin layer 74a is configured to reduce a surface friction of the sliding seal 72a. The thin layer 74a is configured to increase the resistance to wear of the sliding seal 72a. The sealing ring 76a comprises a V-shaped groove 112a. The groove 112a is configured to advantageously improve dynamic properties of the sealing ring 76a when the tappet unit 20a moves.

[0051] FIG. 3 shows a solenoid valve system 58a with the solenoid valve device. The solenoid valve system 58a forms a modular system, particularly a modular solenoid valve system. The solenoid valve system 58a comprises a plurality of solenoid parts 12a, 12a′, 12a″, each of which forming independent modules 24a. The magnet parts 12a, 12a′, 12a″ of the solenoid valve system 58a are implemented differently from one another. The magnet parts 12a, 12a′, 12a″ which are implemented differently from one another comprise different connection devices 54a, 54a′, 54a″. At least a portion of the magnet parts 12a, 12a′, 12a″ of the solenoid valve system 58a is identical. The solenoid valve system 58a comprises a plurality of valve parts 22a, 22a′, 22a″, 22a′″, each of which forming independent modules 26a. The valve parts 22a, 22a′, 22a″, 22a′″ of the solenoid valve system 58a are implemented differently from one another. The valve parts 22a, 22a′, 22a″, 22a′″, which are implemented differently from one another have different arrangements and/or dimensions of working ports 38a, 38a′, pressure ports 36a, 36a′, and/or venting ports 40a, 40a′. At least a portion of the valve parts 22a, 22a′, 22a″, 22a′″ of the solenoid valve system 58a is identical. The magnet parts 12a, 12a′, 12a″ of the solenoid valve system 58a can be interchangeably coupled to the valve parts 22a, 22a′, 22a″, 22a′″. Any magnet parts 12a, 12a′, 12a″ of the solenoid valve system 58a can be interchangeably coupled to any valve parts 22a, 22a′, 22a″, 22a′″. One magnet part 12a, 12a′, 12a″ and one valve part 22a, 22a′, 22a″, 22a′″ coupled to the magnet part 12a, 12a′, 12a″, respectively, form a solenoid valve 10a, 10a′, 10a″. The valve parts 22a, 22a′, 22a″, 22a′″ and the magnet parts 12a, 12a′, 12a″ of the solenoid valves 10a, 10a′, 10a″ can be decoupled non-destructively and/or are replaceable. Solenoid valves 10a, 10a′, 10a″ can be coupled to one another to form a valve chain 106a. The pressure ports 36a of the solenoid valves 10a of the valve chain 106a shown by way of example in FIG. 3 are connected to a shared pressure line 108a.

[0052] FIG. 4 shows a flow chart of a method with the solenoid valve device for the pressure-compensated solenoid valve 10a. In at least one method step 114a, a magnet part 12a and a valve part 22a are selected for coupling to a solenoid valve 10a. In at least one further method step 116a, the selected magnet part 12a is connected to the selected valve part 22a by means of the sealing and assembly device 28a. The connection produced in method step 116a between the magnet part 12a and the valve part 22a can be released. The connection produced in method step 116a between the magnet part 12a and the valve part 22a is pressure-tight. The connection produced in method step 116a between the magnet part 12a and the valve part 22a captively connects the magnet part 12a and the valve part 22a to one another. When the magnet part 12a and the valve part 22a are connected to one another, the respective coupling elements 92a, 94a are brought into positive engagement with one another. In at least one further method step 118a, the tappet unit 20a of the coupled valve part 22a is moved to a circuit of the solenoid valve 10a by a magnetic field generated by the magnetic coil winding 14a of the magnet part 12a. In method step 118a, the tappet unit 20a is pulled by the magnetic field in the direction of the magnet part 12a. In at least one further method step 120a, the tappet unit 20a is deflected back by the restoring element 32a. In method step 120a, the tappet unit 20a is pushed away from the magnet part 12a by the restoring element 32a. In at least one further method step 122a, the magnet part 12a is decoupled from the valve part 22a in a non-destructive manner. In at least one further method step 124a, the magnet part 12a is replaced for another magnet part 12a, 12a′, 12a″ which is different from the magnet part 12a and/or the valve part 22a is replaced by another valve part 22a, 22a′, 22a″, 22a′″ which is different from the valve part 22a. In at least one further method step 126a, the replaced other magnet part 12a, 12a′, 12a″ is coupled to the remaining valve part 22a and/or the replaced other valve part 22a, 22a′, 22a″, 22a′″ is coupled to the remaining magnet part 12a.

[0053] FIGS. 5 and 6 show two other exemplary embodiments of the invention. The following descriptions and the drawings are substantially limited to the differences between the exemplary embodiments, wherein the drawings and/or the description of the other exemplary embodiments, particularly those of FIGS. 1 to 4, can be referenced with respect to components having the same designation, particularly with components to components with the same reference numerals. To distinguish between the exemplary embodiments, the letter a is placed after the reference numerals of the exemplary embodiment in FIGS. 1 to 4. In the exemplary embodiments of FIGS. 5 and 6, the letter a is replaced by the letters b and c.

[0054] FIG. 5 shows an alternative solenoid valve 10b with an alternative solenoid valve device. The solenoid valve device comprises a magnet part 12b and a valve part 22b. The magnet part 12b is hermetically encapsulated. The magnet part 12b comprises a magnet part housing 98b. The hermetic encapsulation of the magnet part 12b forms the magnet part housing 98b. The magnet part housing 98b is configured to shield the magnet part 12b from external influences, for example, dirt or moisture. The valve part 22b comprises a housing 34b. The housing 34b of the valve part 22b and the magnet part housing 98b are connected to one another to form the solenoid valve 10b. The valve part 22b comprises a tappet unit 20b. The tappet unit 20b is configured to be moved by means of a magnetic field of the magnet part 12b to operate the solenoid valve 10b. The valve part 22b comprises a restoring element 32b. The restoring element 32b is configured to deflect the tappet unit 20b back into an initial state when the magnetic field of the magnet part 12b is switched off. The restoring element 32b is supported against the magnet part housing 98b. The magnet part housing 98b has a small thickness of a few millimeters. The magnet part housing 98b only slightly influences a transmission of the magnetic field from the magnet part 12b to the tappet unit 20b; particularly, a magnetic field strength at the location of the tappet unit 20b is less than 5%, preferably less than 3% and particularly preferably less than 1% less than a magnetic field strength of an identical magnet part 12b which does not comprise a magnet part housing 98b.

[0055] FIG. 6 shows an alternative solenoid valve 10c with an alternative solenoid valve device. The solenoid valve device comprises a magnet part 12c and a valve part 22c. The valve part 22c comprises a tappet unit 20c. The tappet unit 20c is configured to be moved by means of a magnetic field of the magnet part 12c to operate the solenoid valve 10c. The tappet unit 20c comprises an armature tappet 90c. The anchor tappet 90c forms the flat anchor 70c. The solenoid valve device comprises a first valve seal 64c. The tappet unit 20c comprises the first valve seal 64c. The first valve seal 64c is pressed onto the armature tappet 90c. The solenoid valve device comprises a second valve seal 128c. The tappet unit 20c comprises the second valve seal 128c. The second valve seal 128c is pressed onto the armature tappet 90c. The first valve seal 64c is spaced apart from the second valve seal 128c along an axis of movement 130c of the tappet unit 20c. The first valve seal 64a, viewed in the direction of the magnet part 12c, is arranged behind the second valve seal 128c. The first valve seal 64c is arranged between the second valve seal 128c and the magnet part 12c. The first valve seal 64c is implemented to be spatially separated from the second valve seal 128c. The first valve seal 64c and the second valve seal 128c are, apart from the armature tappet 90c, free from a common carrier element. The first valve seal 64c moves with the second valve seal 128c, and vice versa. The first valve seal 64c and the second valve seal 128c are configured to block and/or open different flow-through paths through the solenoid valve device. The valve part 22c comprises a first valve seat 50c.

[0056] The valve part 22a comprises a housing 34c. The housing 34c has a pressure port 36c. The pressure port 36c is arranged in the vicinity of the second valve seal 128c and/or a second valve seat 52c. The housing 34c has a working port 38c. The working port 38c is arranged in an intermediate region 134c between the first valve seal 64c and the second valve seal 128c. The housing 34c has a venting port 40c. The venting port 40c is arranged in the vicinity of the first valve seal 64c, the first valve seat 50c, and/or a third valve seat 132c. The first valve seal 64c is configured to be sealingly seated on the first valve seat 50c in at least one operation state. The second valve seal 128c is not seated on the first valve seat 50c in any operation state of the solenoid valve device from FIG. 6. The venting port 40c is closed when the first valve seal 64c sits sealingly on the first valve seat 50c in the implementation of FIG. 6. A flow-through path between the working port 38c and the pressure port 36c is open when the first valve seal 64c is sealingly seated on the first valve seat 50c. The valve part 22c comprises a second valve seat 52c. The second valve seal 128c is configured to be sealingly seated on the second valve seat 52c in at least one operation state. The first valve seal 64c is not seated on the second valve seat 52c in any operation state of the solenoid valve device from FIG. 6. The pressure port 36c is closed when the second valve seal 128c sits sealingly on the second valve seat 52c in the implementation of FIG. 6. A flow-Through path between the working port 38c and the venting port 40c is open when the second valve seal 128c is sealingly seated on the second valve seat 52c.

[0057] The valve part 22c comprises the third valve seat 132c. The first valve seal 64c is configured to be sealingly seated on the third valve seat 132c in at least one operation state. The second valve seal 128c is not seated on the third valve seat 132c in any operation state of the solenoid valve device from FIG. 6. A connection of at least the venting port 40c and/or at least the working port 38c to a magnet-side cavity 104c in which particularly the flat armature 70c is arranged is closed when the first valve seal 64c sits sealingly on the third valve seat 132c in the embodiment of FIG. 6. The cavity 104c is advantageously connected to the pressure port 36c and/or open to the pressure port 36c via a pressure compensation element 30c of the tappet unit 20c. A flow-through path between the working port 38c and the venting port 40c is open when the first valve seal 64c is sealingly seated on the third valve seat 132c. When the first valve seal 64c is seated on the third valve seat 132c, the first valve seat 50c is free of the first valve seal 64c, i.e., is open, and vice versa. The embodiment of FIG. 6 is free from a sliding seal, particularly a seal sliding along the tappet unit 20c. The solenoid valve device of FIG. 6 has at least substantially identical, particularly at least substantially identically arranged valve ports, i.e., the pressure port 36c, the working port 38c, and the venting port 40c. This advantageously enables or maintains the replaceability of different valve parts 22c.

REFERENCE NUMERAL

[0058] 10 solenoid valve

[0059] 12 magnet part

[0060] 14 magnetic coil winding

[0061] 16 interior

[0062] 18 magnetic core

[0063] 20 tappet unit

[0064] 22 valve part

[0065] 24 module

[0066] 26 module

[0067] 28 sealing and assembly device

[0068] 30 pressure compensation element

[0069] 32 restoring element

[0070] 34 housing

[0071] 36 pressure port

[0072] 38 working port

[0073] 40 venting port

[0074] 42 sealing arrangement

[0075] 44 seal

[0076] 46 seal diameter

[0077] 48 effective diameter

[0078] 50 first valve seat

[0079] 52 second valve seat

[0080] 54 connection device

[0081] 56 control device

[0082] 58 solenoid valve system

[0083] 60 winding carrier

[0084] 62 magnet yoke

[0085] 64 valve seal

[0086] 66 guide element

[0087] 68 magnet bracket

[0088] 70 flat anchor

[0089] 72 sliding seal

[0090] 74 layer

[0091] 76 sealing ring

[0092] 78 solenoid

[0093] 80 magnetic circuit

[0094] 82 disc-shaped end area

[0095] 84 gap

[0096] 86 further gap

[0097] 88 effective diameter

[0098] 90 armature tappet

[0099] 92 coupling element

[0100] 94 coupling element

[0101] 96 sealing element

[0102] 98 magnet part housing

[0103] 100 receiving area

[0104] 102 shoulder

[0105] 104 cavity

[0106] 106 valve chain

[0107] 108 pressure line

[0108] 110 surface coating

[0109] 112 groove

[0110] 114 method step

[0111] 116 method step

[0112] 118 method step

[0113] 120 method step

[0114] 122 method step

[0115] 124 method step

[0116] 126 method step

[0117] 128 valve seal

[0118] 130 axis of movement

[0119] 132 third valve seat

[0120] 134 intermediate area