EP2775485B1 - Electromagnetic actuating device, in particular for adjusting the camshaft of an internal combustion engine - Google Patents

Description

The invention relates to an electromagnetic actuator according to the preamble of patent claim 1 and an adjusting device for internal combustion engines, in particular for camshaft adjustment.

A generic electromagnetic actuator is as a device for the camshaft adjustment of an internal combustion engine from the DE 10 2007 037 232 A1 known.

Such devices for camshaft adjustment have two or more plungers, which are the same or opposite or independently moved by energizing coil units to cause by cooperation with a respective cam groove of the camshaft axial, predetermined adjustment of the camshaft, whereby a cam different cam tracks can be assigned, for example, to perform a cylinder shutdown or valve lift switching.

The known electromagnetic actuator according to the DE 10 2007 037 232 A1 has a multi-part plunger unit, which consists of a hollow plunger and an inner plunger held by this, wherein both the hollow plunger is associated with a pole core cooperating armature and designed as a permanent magnet inner plunger a flat armature. Further, a first coil unit surrounding the pole core and a second coil unit enclosing the hollow and inner plunger are provided, which is arranged axially to the first coil unit in the adjusting device. An energization This second coil unit causes a movement of the flat armature of the hollow tappet in the adjustment direction, that is pushed out of the housing in a parking position, but while the armature of the inner tappet magnetically adhere to the pole core due to its permanent magnetic property, so the inner tappet remains in its retracted rest position.

To extend the inner plunger from its retracted rest position to its setting position, the first coil unit is energized so that the armature of the inner plunger is repelled due to the permanent magnetic property of the pole core.

With such a known electromagnetic actuating device, different penetration depths into the associated control grooves are possible in cooperation with the control grooves of a camshaft for the "partial tappets" of the multi-part tappet unit, so that corresponding control grooves can be selectively selected and traversed, so that upon rotation of the camshaft the intended axial adjustment is effected.

In this known adjusting device, however, there is the danger that the multi-part ram unit with a hollow and an inner tappet does not always work properly in all operating conditions of an internal combustion engine. Furthermore, two coil units are required for the operation of this known actuator, which lead both to a high cost of materials and to a high energy consumption.

Based on this prior art, it is an object of the invention to provide an electromagnetic actuator of the type mentioned, which under all operating conditions guarantees an energy-saving and functionally reliable mode of operation without the need for a complex construction.

This object is achieved by an electromagnetic actuating device having the features of patent claim 1.

• ein in magnetische Wirkverbindung mit der zweiten Ankeranordnung bringbarer zweiter Polkern vorgesehen ist, welcher zur Beeinflussung von dessen magnetischen Wirkverbindung mit der zweiten Ankeranordnung durch die Spuleneinheit axial gegenüber dem ersten Polkern ausgerichtet ist, und
• eine Permanentmagneteinheit vorgesehen ist, deren Magnetachse zur Erzeugung einer magnetischen Wirkverbindung sowohl zwischen dem ersten Polkern und der ersten Ankeranordnung als auch zwischen dem zweiten Polkern und der zweiten Ankeranordnung radial ausgerichtet ist.

Such an electromagnetic actuating device which comprises a first armature arrangement which can be displaced in the axial direction between a rest position and a positioning position and which is connected to a first actuating element, a first pole core which can be brought into operative magnetic connection with the first armature arrangement, an axially aligned energizable coil unit for influencing the magnetic operative connection between the first pole core and the first armature arrangement and a second armature arrangement connected to a second control element and displaceable in the axial direction between a rest position and a control position, is characterized according to the invention in that

• a second pole core which can be brought into magnetic operative connection with the second armature arrangement and which is aligned axially with respect to the first pole core for influencing its magnetic operative connection with the second armature arrangement through the coil unit, and
• a permanent magnet unit is provided, whose magnetic axis is radially aligned for generating a magnetic operative connection both between the first pole core and the first armature arrangement and between the second pole core and the second armature arrangement.

In this adjusting device according to the invention, a permanent magnet unit is provided, which holds the two armature assemblies in their rest positions, in which the first armature assembly is in magnetic operative connection with the first pole core and the second armature arrangement is in magnetic operative connection with the second pole core, without energy being required for this operating position. The coil unit is only required for the magnetic active connections of the two armature arrangements to be influenced by the respective pole core, so that either the magnetic operative connection between the first armature arrangement and the first pole core or the magnetic operative connection between the second armature arrangement and the second pole core is released, to thereby allow movement of the first armature assembly together with the first actuator or movement of the second armature assembly together with the second actuator.

According to a first embodiment of the invention, a first spring element is provided, which biases the first anchor assembly against the first pole core in the direction of adjustment. Further, according to a further embodiment of the invention, a second spring element is provided which biases the second armature assembly against the second pole core in the direction of adjustment.

Thus, when the magnetic operative connection between the pole cores and the associated armature arrangements is released, a movement of the armature arrangements together with the respective actuating elements from their rest positions into the setting positions is made possible by the preloaded spring elements.

For this purpose, according to an advantageous development of the invention, the permanent magnet unit is designed such that, when the coil unit is de-energized, both the first armature arrangement with the first pole core and the second armature arrangement with the second pole core are brought into magnetic operative connection becomes. For this purpose, such a permanent magnet unit has a field strength such that the holding force of the armature arrangements caused thereby at the respective pole cores can not be overcome by the respective spring elements, ie, that the permanent magnet unit is designed in such a way that the first and second magnetically active connections are produced Anchor assembly is held in their rest positions.

In a further embodiment of the invention, it is provided that the coil unit is designed such that depending on the Bestromungsrichtung either the magnetic operative connection between the first armature assembly and the first pole core or the operative connection between the second armature assembly and the second pole core is repealed.

A particularly advantageous further embodiment of the invention results if the second armature arrangement comprises an armature with an armature plate, wherein the armature plate is in operative connection with the second actuating element.

Furthermore, it is provided in one embodiment of the invention that the second pole core is designed for slidably receiving the first armature arrangement with a blind hole. For a particularly compact arrangement of the two pole cores in the actuator is possible.

The structural design of the adjusting device according to the invention is further simplified in that further education a tubular receiving element is provided, which is connected at one end to the first pole core and the other end to the second pole core.

It is particularly advantageous if, according to one embodiment of the invention, the coil unit is arranged on this receiving element at the end of the tubular receiving element adjacent to the first pole core. Preferably, then the permanent magnet unit is arranged on the second pole core radially circumferentially.

Another compact arrangement results from the further development that the permanent magnet unit is arranged axially in the adjustment direction adjacent to the coil unit.

Preferably, the permanent magnet unit is constructed of annular ring-like permanent magnets. This can be used to build a magnetic field generated by these permanent magnets, which is substantially homogeneous and in particular a high holding force for generating the magnetic active connections between the first and second armature assembly and the first and second pole core.

According to a further embodiment of the invention, the first actuating element is designed as a plunger, on which the first armature arrangement immovably and the second armature arrangement is arranged displaceably. In a corresponding manner, it is also provided according to the invention that the second adjusting element is also designed as a ram and is arranged offset axially in the adjusting device.

It is particularly advantageous if, according to a further embodiment of the invention, the plunger of the second actuating element is biased counter to the direction of adjustment by means of a spring element and bears against the anchor plate of the second anchor arrangement in a surface-locking manner. Thus, such a plunger is neither force nor cohesively connected to the anchor plate, but is loosely attached to the same. This results in a smooth movement in the movement of the plunger of the second anchor assembly.

The adjusting device according to the invention can advantageously be used as an adjusting unit for an internal combustion engine, in particular for adjusting a camshaft of the internal combustion engine.

Figur 1

eine Schnittdarstellung einer elektromagnetischen Stellvorrichtung gemäß der Erfindung,

Figur 2

eine schematische Darstellung einer Nockenwelle mit Steuernuten und zugehörigen Stellelementen einer Stellvorrichtung nach Figur 1,

Figur 3

ein Drehwinkel-Hubweg-Diagramm zur Darstellung des Zusammenwirkens der Stellelemente mit den Steuernuten der Nockenwelle nach Figur 2,

Figur 4

eine schematische Darstellung der elektromagnetischen Stellvorrichtung gemäß Figur 1 mit dem von der Permanentmagneteinheit erzeugten magnetischen Feldlinienverlauf zur Verstellung der ersten Stelleinheit aus deren Ruheposition in deren Stellposition,

Figur 5

eine schematische Darstellung der elektromagnetischen Stellvorrichtung gemäß Figur 1 mit dem von der Permanentmagneteinheit und der Spuleneinheit erzeugten magnetischen Feldlinienverlauf zur Verstellung der ersten Stelleinheit aus deren Ruheposition I in deren Stellposition II,

Figur 6

eine schematische Darstellung der elektromagnetischen Stellvorrichtung gemäß Figur 1 mit dem von der Permanentmagneteinheit erzeugten magnetischen Feldlinienverlauf zur Rückstellung der ersten Stelleinheit aus deren Stellposition II in deren Ruheposition I,

Figur 7

eine schematische Darstellung der elektromagnetischen Stellvorrichtung gemäß Figur 1 mit dem von der Spuleneinheit und der Permanentmagneteinheit erzeugten magnetischen Feldlinienverlauf zur Verstellung der zweiten Stelleinheit aus deren Ruheposition I in deren Stellposition II, und

Figur 8

eine schematische Darstellung der elektromagnetischen Stellvorrichtung gemäß Figur 1 mit dem von der Permanentmagneteinheit erzeugten magnetischen Feldlinienverlauf zur Rückstellung der zweiten Stelleinheit aus deren Stellposition II in deren Ruheposition I.

The invention will now be described in detail by means of embodiments with reference to the accompanying figures. Show it:

FIG. 1

a sectional view of an electromagnetic actuator according to the invention,

FIG. 2

a schematic representation of a camshaft with control grooves and associated adjusting elements of an adjusting device according to FIG. 1 .

FIG. 3

a rotation angle stroke diagram for illustrating the interaction of the actuating elements with the cam grooves of the cam shaft FIG. 2 .

FIG. 4

a schematic representation of the electromagnetic actuator according to FIG. 1 with the magnetic field line profile generated by the permanent magnet unit for adjusting the first actuating unit from its rest position into its actuating position,

FIG. 5

a schematic representation of the electromagnetic actuator according to FIG. 1 with that generated by the permanent magnet unit and the coil unit magnetic field line course for adjusting the first actuator from its rest position I in the parking position II,

FIG. 6

a schematic representation of the electromagnetic actuator according to FIG. 1 with the magnetic field line profile generated by the permanent magnet unit for resetting the first actuating unit from its actuating position II in its rest position I,

FIG. 7

a schematic representation of the electromagnetic actuator according to FIG. 1 with the magnetic field line profile generated by the coil unit and the permanent magnet unit for adjusting the second actuating unit from its rest position I in its actuating position II, and

FIG. 8

a schematic representation of the electromagnetic actuator according to FIG. 1 with the magnetic field line profile generated by the permanent magnet unit for returning the second actuating unit from its actuating position II in its rest position I.

The electromagnetic actuator 1 according to FIG. 1 comprises a multi-part housing 2 for receiving its components and is constructed from a first tubular housing part 2a and a second housing part 2b. The second housing part 2b is flange-mounted in the axial direction on the first housing part 2a.

At one end of the first housing part 2a, a first pole core 20 forms an end face of this first housing part 2a. This first pole core 20 is associated with a first armature arrangement 10, which consists of a on a first actuator 11 immovably arranged armature 12. This first control element 11 is designed as a plunger and serves as an axis for guiding the first armature assembly 10. The plunger 11 is mounted on the one hand in a central bore 23 of the pole core 20 and the other in the second housing section 2b.

In the in FIG. 1 shown rest position I of the first armature assembly 10 and the plunger 11, in which the armature 12 bears against the pole core 20, the armature 12 is biased by a spring element 13 in the direction of adjustment R1. To guide this spring element 13, the armature 12 has a blind hole 14 and the pole core 20 has an annular flange 21.

The first pole core 20 has a radial circumferential flange 22 which produces the connection to the first housing part 2 a and is furthermore connected to a tubular receiving element 3, which receives a second pole core 40 at the opposite end. This second pole core 40 has a blind hole 41 whose contour is adapted to the outer contour of the armature 12 of the first armature assembly 10, so that a movement of this armature 12 together with the plunger 11 from the rest position I in adjusting device R1 in a parking position II is possible , The frontal distance of this second pole core 40 to the first pole core 20 is kept small, so that even in the illustrated position of the armature 12, this is still partially enclosed by the second pole core 40. Furthermore, this second pole core 40 has a central through-bore 42 for receiving the plunger 11.

For storage of the plunger 11 of the first armature assembly 10, a bore 4 is provided in the second housing portion 2b, which in the direction of the second pole core 40 in a blind hole 5 ends. In the resulting space between the second pole core 40 and the blind hole bottom 5a of the blind bore 5, an armature 32 of a second armature arrangement 30 which is displaceably arranged on the plunger 11 is provided, which cooperates with the second pole core 40. Between this armature 32 and the second pole core 40, a spring element 34 is arranged, so that when concerns of the armature 32 on the second pole core 40 of the armature 32 is biased in the direction of adjustment R1.

This second armature assembly 30 comprises, in addition to the armature 32, an anchor plate 33 connected to the same, which is circumferentially adapted to the inner contour of the first tubular housing part 2a, and a second actuating element 31 mounted in the second housing part 2b by means of a bore 6, which corresponds to the first actuating element 11 is also designed as a plunger.

In order to press this ram 31 frontally loosely to the anchor plate 33, a spring element 36 is provided, which is supported on the one hand in a blind hole 7 of the bore 6 and on the other hand at one end on the plunger 31 arranged receiving element 35.

In the in FIG. 1 shown position of the second armature assembly 30 is the plunger 31 in its rest position I.

An energizable coil unit 50 is arranged on the receiving element 3 and encloses the first pole core 20 and the voltage applied to this pole core 20 first armature assembly 10. This coil unit 50 is followed in the axial direction of an annular permanent magnet unit 60, which surrounds the second pole core 40. This permanent magnet unit 60 is made from a plurality of circular segment-like, for example, six circular segment magnets. These circular segment magnets are arranged in the adjusting device 1 such that their magnetic axes 61 are aligned in the radial direction with respect to the plunger 11 forming the central axis.

The magnetic line profile caused by this permanent magnet unit 60 when the coil unit 50 is de-energized and a state of the electromagnetic actuator 1 according to FIG FIG. 1 show the FIG. 4 , In the rest position I of the two plungers 11 and 31, both the armature 12 of the first armature arrangement 10 abut the first pole core 20 and the armature 32 of the second armature arrangement 30 abut the second pole core 40.

The one magnetic circuit 62 surrounds the coil unit 50 by the associated field lines starting from the permanent magnet unit 60 via the first housing part 2a, the first pole core 20, the armature 12 of the first armature assembly 10th and extend back into the permanent magnet unit 60 via the second pole core 40. The permanent magnet unit 60 is arranged such that the direction of the field lines corresponds to the indicated directional arrows of the magnetic circuit 62.

The other magnetic circuit 63 is formed on the opposite side of the coil unit 50 and extends from the permanent magnet unit 60 via the second pole core 40 and the armature 32 of the second armature assembly 30 and closes again on the first housing part 2a. Again, the direction of the field lines corresponds to the indicated directional arrows of the magnetic circuit 63.

Since both the armature 12 of the first armature assembly 10 abut the first pole core 10 and the armature 32 of the second armature assembly 30 to the second pole core 40, the associated column S1 and S2 are negligible, resulting in a high field line density at these columns S1 and S2 yields and the resulting magnetic forces both the armature 12 and the armature 32 to the pole core 20 and 40 hold. In addition, in this position of the armature 12, this is also surrounded on the edge side by the second pole core 40, so that even there, the magnetic resistance is low. The properties of the permanent magnet unit 60 are selected such that the magnetic forces generated at the gaps S1 and S2 are greater than the corresponding restoring forces of the two spring elements 13 and 34. Thus, the plunger 11 and 31 are held in their rest positions I.

In the following, the function of the electromagnetic actuator 1 and its interaction with a camshaft of an internal combustion engine based on Figures 2 . 3 and 5 to 8 explained.

The FIG. 2 shows a control portion of a camshaft 70 with two cam grooves 71 and 72, so that by cooperation with a plunger as the first actuating element 11 and a further plunger as the second actuator 31, an axial back and forth the camshaft 70 is effected. If the plunger 11 is extended from its rest position I into its parking position II, ie lowered into the control groove 71, a simultaneous rotation of the camshaft causes its displacement in the direction L. The camshaft 70 is pushed back in the direction R in its initial position by extending the plunger 31 from its rest position I in the control groove 72 at simultaneous rotation of the camshaft 70, but only after the plunger 11 has been retracted to its rest position I.

The FIG. 3 shows in a 360 ° -Abwicklung the two cam grooves 71 and 72, the associated actuating movements of the two plungers 11 and 31. The energization of the coil unit 50 is therefore synchronized with the rotational movement of the camshaft 70.

To the plunger 11 from its rest position I, according to the in FIG. 3 shown zero position N to control its position II, so that it is lowered into the control groove 71, there is an energization of the coil unit 50 during a rotational movement of the camshaft 70 from 0 ° to 90 °. In this case, the energization of the coil unit 50 takes place in such a way that according to FIG FIG. 5 a magnetic circuit 51 is generated which initially extends in the axial direction over the first pole core 20, the armature 12 of the first armature assembly 10, the second pole core 40, the armature 32 of the second armature assembly 30 and closes over the first housing section 2a. In this case, the field lines of the magnetic circuit 62 generated by the permanent magnet unit 60 in the region of the first pole core 20, the armature 12 of the first armature assembly 10 and the second pole core 40 are neutralized, so that under the spring force of the prestressed spring element 13 of the armature 12 together with the plunger 11 is moved in the direction of adjustment R1 until the armature 12 abuts the second pole core 40. The plunger 11 has reached its parking position II and is engaged with the cam 71.

On the other hand, the magnetic circuit 63 further generated by the permanent magnet unit 60 is amplified, so that the holding force of the armature 32 of the second armature assembly 30 on the second pole core 40 increases. The plunger 31 of the second anchor assembly 30 remains in its rest position I.

The plunger 11 remains in its parking position II until the camshaft 70 has reached the angle of rotation 270 ° and while the camshaft 70 is axially displaced in the direction L. From this rotational position, the groove depth of the cam groove 71 decreases, whereby the plunger 11 is pushed back in the direction of its rest position I, until at a point P of the magnetic circuit 62 generated by the permanent magnet unit 60 in the region of the gap S1 leads to an increase in the field line density, so that thereby the armature 12 of the first armature assembly 10 is pulled against the spring force of the spring element 13 to the first pole core 20 and thus again reaches its rest position I or the zero position.

The FIG. 6 shows the position corresponding to the point P of the armature 12 of the first armature assembly 10, in the edge first contact between this armature 12 and the first pole core 20 and thereby a sufficient field strength for complete movement of the armature 12 is generated in its rest position I.

To control the plunger 31 of the second armature assembly 30, the coil unit 50 is energized with reverse polarity, so that no longer the field lines of the magnetic circuit 62 are neutralized by the field lines of the coil unit 50 generated thereby, but the field lines of the further magnetic circuit 63, as in FIG. 7 is shown. The field lines of the magnetic field 51 generated by the coil unit 50 is now directed so that the magnetic field 63 of the permanent magnet unit 60 is neutralized, whereas its magnetic field 62 undergoes a gain.

As a result, the holding force generated at the gap S2 is no longer sufficient to hold the armature 32 against the spring force of the preloaded spring element 34 on the second pole core 40, so that the second armature arrangement 30 is moved by the spring element 34 in the direction of adjustment R1 until the second armature arrangement 30 moves Anchor 32 on the groove bottom 5a of the blind hole 5 abuts and at the same time the plunger 31 is moved against the spring element 36 from its rest position I in its parking position II, so that it now engages in the cam groove 72 of the camshaft 70.

The corresponding further course arises again FIG. 3 After that, the coil unit 50 is energized with the rotational movement of the camshaft 70 up to the rotation angle of 90 °. With the rotational movement of the camshaft 70 up to a rotation angle of 270 °, this is again pushed back axially in the direction R.

With the reaching of the point P corresponding rotation angle is pushed back by the decreasing groove depth of the cam groove 72, the plunger 31 in the direction of its rest position I, that now according to FIG. 8 Also in the region of the column S2 between the armature 32 of the second armature assembly 30 and the second pole core 40, the field line strength has risen so far that the armature 32 is attracted against the spring force of the spring element 34 of the second pole core 40, so that in this way the plunger 31st reached his resting position I again.

LIST OF REFERENCE NUMBERS

1

electromagnetic actuator

2

Housing of the electromagnetic actuator 1

2a

first housing part of the housing 2

2 B

second housing part of the housing 2

3

tubular receiving element of the electromagnetic actuator 1

4

Bore of the second housing part 2b

5

Pothole hole of the second housing part 2b

6

Bore of the second housing part 2b

7

Blind hole

8 10

first armature arrangement

11

first actuating element of the first armature arrangement 10

12

Anchor of the first armature assembly 10

13

Spring element of the first armature arrangement

14

Blind hole of anchor 12

20

first pole core

21

annular flange of the pole core 20

22

Flange of the pole core 20

23

drilling

30

second armature arrangement

31

second adjusting element of the second armature arrangement 30

32

Anchor of the second armature assembly 30

33

Anchor plate of the second anchor assembly 30

34

spring element

35

receiving element

36

spring element

40

second pole core

41

Blind hole of the second pole core 40

42

Through Hole

50

coil unit

51

Magnetic circuit of the coil unit 50th

60

Permanent magnet unit

61

magnetic axis

62

Magnetic circuit of the permanent magnet unit 60

63

Magnetic circuit of the permanent magnet unit 60

70

Camshaft of an internal combustion engine

71

Cam of the camshaft

72

Cam of the camshaft

Claims (16)

1. Electromagnetic adjusting device (1) comprising:

   - a first armature arrangement (10) which is able to be moved in the axial direction between a rest position (I) and an adjusting position (II), said armature arrangement being connected to a first adjusting element (11),

   - a first pole core (20) which is able to be brought into magnetic operative connection with the first armature arrangement (10),

   - an axially orientated, energisable coil unit (50) to influence the magnetic operative connection between the first pole core (20) and the first armature arrangement (10), and

   - a second armature arrangement (30) which is connected to a second adjusting element (31) and is able to be moved in the axial direction between a rest position (I) and an adjusting position (II),

   wherein the first adjusting element (11) is formed as a tappet, on which the first armature arrangement (10) is arranged to be non-moveable and the second armature arrangement (30) is arranged to be moveable,
   characterised in that

   - a second pole core (40) is provided which is able to be brought into magnetic operative connection with the second armature arrangement (30), said pole core being orientated axially opposite the first pole core (10) to influence the operative connection of said second pole core with the second armature arrangement (30) via the coil unit (50), and

   - a permanent magnet unit (60) is provided, the magnet axis (61) of which is orientated radially and is fixed between the first pole core (20) and the first armature arrangement (10) as well as between the second pole core (40) and the second armature arrangement (30) for the generation of a magnetic operative connection.
2. Electromagnetic adjusting device (1) according to claim 1,
   characterised in that
   a first spring element (12) is provided which pretensions the first armature arrangement (10) against the first pole core (20) in the adjustment direction (R1).
3. Electromagnetic adjusting device (1) according to claim 1 or 2,
   characterised in that
   a second spring element (32) is provided which pretensions the second armature arrangement (30) against the second pole core (40) in the adjustment direction (R2).
4. Electromagnetic adjusting device (1) according to one of the preceding claims,
   characterised in that
   the permanent magnet unit (60) is formed to bring the first armature arrangement (10) into magnetic operative connection with the first pole core (20) as well as to bring the second armature arrangement (30) into magnetic operative connection with the second pole core (40) in the event of a de-energised coil unit (50).
5. Electromagnetic adjusting device (1) according to claim 4,
   characterised in that
   the permanent magnet unit (60) is formed to keep the first and second armature arrangements (10, 30) in their rest positions (I) with the magnetic operative connection generated.
6. Electromagnetic adjusting device (1) according to one of the preceding claims,
   characterised in that
   the coil unit (50) is formed to cancel out either the magnetic operative connection between the first armature arrangement (10) and the first pole core (20) or the operative connection between the second armature arrangement (30) and the second pole core (40) depending on the energising direction.
7. Electromagnetic adjusting device (1) according to one of the preceding claims,
   characterised in that
   the second armature arrangement (30) comprises an armature (32) having an armature plate (33), wherein the armature plate (33) is in operative connection with the second adjusting element (31).
8. Electromagnetic adjusting device (1) according to one of the preceding claims,
   characterised in that
   the second pole core (40) is formed with a blind hole (41) for moveable receiving of the first armature arrangement (10).
9. Electromagnetic adjusting device (1) according to one of the preceding claims,
   characterised in that
   a tubular receiving element (2) is provided which is connected to the first pole core (20) at one end and to the second pole core (40) at the other end.
10. Electromagnetic adjusting device (1) according to claim 9,
    characterised in that
    the coil unit (50) is arranged on this receiving element (2) on the end of the tubular receiving element (2) which is adjacent to the first pole core (20).
11. Electromagnetic adjusting device (1) according to claim 9 or 10,
    characterised in that
    the permanent magnet unit (60) is arranged to be radially circumferential on the second pole core (40).
12. Electromagnetic adjusting device (1) according to one of the preceding claims,
    characterised in that
    the permanent magnet unit (60) is arranged axially in the adjusting direction adjacent to the coil unit (50).
13. Electromagnetic adjusting device (1) according to one of the preceding claims,
    characterised in that
    the permanent magnet unit (60) is built from circular ring segment-like permanent magnets.
14. Electromagnetic adjusting device (1) according to one of the preceding claims,
    characterised in that
    the second adjusting element (31) is formed as a tappet and is arranged to be axially offset in the adjusting device (1).
15. Electromagnetic adjusting device (1) according to claim 14,
    characterised in that
    the tappet (31) of the second adjusting element is pretensioned contrary to the adjusting direction (R2) by means of a spring element (32) and lies on the armature plate (33) of the second armature arrangement (30) with a seamless transition.
16. Electromagnetic adjusting device (1) according to one of the preceding claims,
    characterised in that
    the adjusting device (1) is formed as an adjusting unit for a combustion engine, in particular for the adjustment of a camshaft (70) of the combustion engine.

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