DE102016216322A1 - coupling device - Google Patents

Abstract

The invention relates to a coupling device which is rotatable about an axis of rotation, comprising a plate carrier, a further plate carrier and a Kühlflüssigkeitsleiteinrichtung, wherein the plate carrier radially inwardly limited a first annular gap, the further plate carrier radially inwardly limited to a second annular gap, wherein the plate carrier is connected in a torque-locking manner by means of a connection with the further plate carrier, the first annular gap being fluidically connected via the further plate carrier for feeding a cooling liquid from the second annular gap to the first annular gap, wherein the cooling liquid conducting device is configured, a leakage flow of the cooling liquid from the second annular gap to reduce the connection.

Description

The invention relates to a coupling device according to claim 1.

From the EP 1 382 872 is known a multi-plate clutch system.

It is an object of the invention to provide an improved coupling device.

This object is achieved by means of a coupling device according to claim 1. Advantageous embodiments are given in the dependent claims.

According to the invention, it has been recognized that an improved coupling device can be provided in that the coupling device can be mounted rotatably about an axis of rotation. The coupling device has a plate carrier, a further plate carrier and a coolant guiding device. The disk carrier defines radially inwardly a first annular gap. The further plate carrier bounded radially inwardly a second annular gap. The plate carrier is connected in a torque-locking manner by means of a connection with the further plate carrier. The first annular gap is fluidly connected via the further plate carrier for supplying a cooling liquid from the second annular gap to the first annular gap. The Kühlflüssigkeitsleiteinrichtung is designed to reduce a leakage current of the cooling liquid to the second annular gap via the connection.

In this way, it is ensured that a first friction pack arranged in the first annular gap receives a sufficiently large flow of cooling fluid and thus reliable cooling of the first friction pack is ensured. In this way, an excessive wear of the first Reibpakets is reliably avoided.

In a further embodiment, the connection has at least one engagement element on the end face on the further plate carrier. The compound has a recess formed in the plate carrier corresponding to the engagement element. The engagement element engages in the recess. The Kühlflüssigkeitsleiteinrichtung at least partially covers the recess and blocks the leakage flow through the recess at least partially.

In another embodiment, the Kühlflüssigkeitsleiteinrichtung on a ring portion, a mounting portion and a guide portion. The attachment portion and the guide portion are arranged circumferentially offset from each other on the ring portion.

In a further embodiment, the guide section is arranged at least partially adjacent to the recess. The attachment portion is arranged offset in the circumferential direction to the recess.

In a further embodiment, the guide portion and the attachment portion are arranged radially on a common side to the ring portion.

In a further embodiment, the guide section is preferably arc-shaped at least in sections. The guide section has at least one axial region. The axial region bears against a peripheral surface of the further disk carrier. In this way, a particularly good sealing of the recess can be ensured by the guide section.

In a further embodiment, the guide section and the engagement element are arranged overlapping in the circumferential direction. Preferably, the engagement element and the guide portion are formed in the circumferential direction substantially the same width. Preferably, the engagement member and the guide portion include an equal angle segment.

In another embodiment, the guide portion and the attachment portion are circumferentially arranged in a regular pattern.

In a further embodiment, the ring portion at least in sections, a stiffening. Preferably, the stiffening is performed at least in sections on a circular path around the axis of rotation.

In a further embodiment, the coupling device has a first friction pack and a second friction pack. The first friction pack is arranged in the first annular gap and the second friction pack in the second annular gap. The disk carrier has a first radial portion and a first axial portion. The first axial section is connected radially on the outside to the first radial section and designed to carry at least one friction partner of the first friction packet. The further plate carrier has a second axial section. The second axial section is designed to carry a friction partner of the second friction packet. The front end on the second axial section, the engagement element is arranged. The second axial section has an end face. The end face is arranged offset in the circumferential direction to the engagement element. Axially between the first radial portion and the end face of the attachment portion is arranged.

The invention will be explained in more detail with reference to figures. Showing:

1 a semi-longitudinal section through a coupling device along a first sectional plane;

2 a section of the in 1 shown half longitudinal section through the in 1 shown coupling device;

3 an exploded view of subcomponents of in 1 shown coupling device;

4 a detail of a perspective view of a Kühlflüssigkeitsleiteinrichtung; and

5 a section of a semi-longitudinal section through the in 1 shown coupling device along a second cutting plane.

1 shows a semi-longitudinal section through a coupling device 10 along a first cutting plane.

The coupling device 10 is rotatable about an axis of rotation 15 stored. The coupling device 10 has an entry page 20 and an exit side 25 on. The entrance page 20 is configured to be torque-connected to an output side of a reciprocating engine. The exit side 25 the coupling device 10 advantageously comprises a first hub 30 and a second hub 35 , The first hub 30 advantageously provides a torque-locking connection to a first transmission input shaft 40 (shown in dashed lines) a transmission device available. The second hub 35 advantageously provides a torque-locking connection to a second transmission input shaft 45 (dashed lines) of the transmission device available.

Furthermore, the coupling device comprises 10 advantageously a rotor 50 which is formed with a control device of the coupling device 10 to be connected.

The coupling device 10 advantageously comprises a first friction packet 55 and a second friction package 60 , In the embodiment, the first friction pack is an example 55 advantageously radially outward to the second Reibpaket 60 arranged. The two friction packages 55 . 60 each have first and second friction partners 65 . 70 on. Here is the first friction partner 65 Advantageously designed as a non-wearing friction plate, while the second friction partner 70 is advantageously designed as a lining slats. Of course, other embodiments are conceivable. In this case, the first friction partner 65 advantageously a first external toothing 75 and the second friction partner 70 advantageously a first internal toothing 79 on.

The coupling device 10 advantageously has a driver unit 80 on. The driver unit 80 advantageously comprises a first plate carrier 85 , and a driver part 90 , The driver part 90 is axially adjacent to the first plate carrier 85 on one to the first friction package 55 migrated side arranged. The driver part 90 is advantageously formed like a disk and is radially inside with the input side 20 the coupling device 10 torque-connected, for example, with a first connection 91 , in particular a welded joint.

The first plate carrier 85 is advantageously pot-shaped and has a first axial section 92 and advantageously a first radial section 93 on. The first radial section 93 is radially inward via a second connection 95 , which is formed in the embodiment as a welded joint, with the rotor 50 connected torque-locking.

Furthermore, the coupling device comprises 10 a first actuating device 105 and a second actuator 110 , The first actuating device 105 has a first pressure chamber 115 and the second actuator 110 a second pressure chamber 120 on. The two pressure chambers 115 . 120 are not shown lines, preferably in sections in the rotor 50 are arranged, hydraulically connected to the control unit.

The first actuating device 105 has a first actuating element 125 on. The first actuator 125 extends radially inward from the first pressure chamber 115 radially outwards until the first friction pack 55 , The second actuator 110 includes a second actuator 130 extending radially from the radially inner side disposed second pressure chamber 120 to substantially radially at the height of the second Reibpakets 60 extends.

The coupling device 10 further comprises a second plate carrier 135 , a third plate carrier 140 and a fourth plate carrier 145 , The second, third and / or fourth plate carrier 135 . 140 . 145 is pot-shaped and each has a radially extending portion and each having an axially extending portion. Radial inside the radially extending portion is the second plate carrier 135 torque-locking with the second hub 35 connected. The second plate carrier 135 is designed as an inner disk carrier and has a second external toothing 150 on. The first plate carrier 85 limited with the first axial section 92 radially inward one first annular gap 151 , Radially inside is the first annular gap 151 through the second plate carrier 135 limited. The first annular gap 151 is in the axial direction through the first radial section 93 and by the driver part 90 limited. In the first annular gap 151 is the first rubbing package 55 arranged.

The first plate carrier 85 has a second internal toothing 155 on. The second internal toothing 155 and the first external toothing 75 the first friction partner 65 are formed corresponding to each other, wherein the first outer toothing 75 in the second internal toothing 155 of the first disk carrier 85 engages, so the first friction partners 65 of the first friction package 55 torque-locking with the first plate carrier 85 are connected.

In the second external toothing 150 grips the first internal toothing 79 the second friction partner 70 of the first friction package 55 one, so the second friction partners 70 torque-locking with the second plate carrier 135 are connected.

The third plate carrier 140 is advantageously pot-shaped and has a second axial section 160 and advantageously a second radial section 165 on. The second radial section 165 is related to the second friction package 60 on a first radial section 93 arranged opposite side. The second radial section 165 is radially outside with the second axial section 160 connected.

The third plate carrier 140 is about a third connection 170 torque-locking with the first plate carrier 85 connected. The third plate carrier 140 limited with the second axial section 160 a second annular gap 175 radially inward. Radial inside, the second annular gap 175 through the fourth plate carrier 145 limited. In the axial direction, the second annular gap 175 through the first radial section 93 and the second radial portion 165 limited. In the second annular gap 175 is the second rubbing package 60 arranged.

Will over the rotor 50 a pressurized fluid in the first pressure chamber 115 initiated, so is the first actuator 125 in the axial direction in the direction of the first Reibpakets 55 postponed. One is over the first pressure chamber 115 provided actuating force F via the first actuating element 125 in the first rubbing package 55 initiated.

The driver part 90 is axially on an opposite side of the first Reibpakets 55 arranged to the first actuating element. The driver part 90 serves to provide a corresponding to the actuating force F counterforce F _G. As a result, by means of the first actuating element 125 the friction partners 65 . 70 of the first friction package 55 axially pressed against each other, so that the friction partners 65 . 70 build up a frictional connection and the first plate carrier 85 torque-locking with the second plate carrier 135 connect. In this way, a torque M from the input side 20 over the driver part 90 , the first plate carrier 85 and the first friction package 55 in the second plate carrier 135 and over this into the second hub 35 be initiated.

The third plate carrier 140 points in the second axial section 160 a third internal toothing 180 on. The third internal toothing 180 is preferably corresponding to the first outer toothing 75 of the first friction partner 65 of the second friction package 60 educated. The third internal toothing 180 and the first external toothing 75 interlock, so that the first friction partner 65 of the second friction package 60 torque-locking with the second axial portion 160 connected is.

The second friction partners 70 of the second friction package 60 are torque-locking with the fourth plate carrier 145 similar to the connection of the second friction partner 70 of the first friction package 55 with the second plate carrier 135 connected. The fourth plate carrier 145 is radially inward torque-locking with the first hub 30 connected.

Will the pressurized fluid over the rotor 50 in the second pressure chamber 120 initiated, then the second actuating element 130 moved axially. This is the over the second pressure chamber 120 provided actuating force F via the second actuating element 130 in the second rubbing package 60 initiated. The second radial section 165 provides the counterforce F _G , so that the second friction package 60 is pressed and the first friction partner 65 with the second friction partner 70 form a frictional connection, via which a torque closure between the third plate carrier 140 and fourth plate carrier 145 provided. In this case, the torque M is from the input side 20 over the driver part 90 to the first plate carrier 85 and from this over the third connection 170 to the third plate carrier 140 transfer. From the third plate carrier 140 the torque M is over the second friction pack 60 to the fourth plate carrier 145 and from there to the first hub 30 forwarded.

2 shows a section of the in 1 shown coupling device 10 , The third connection 170 has frontally on the third plate carrier 140 at least one engagement element 185 on. The engagement element 185 preferably extends parallel to the axis of rotation 15 , Preferably, a plurality of engagement elements 185 provided in Circumferentially offset from each other, preferably at regular intervals, are arranged. The engaging elements 185 form a spur toothing 190 out. The engagement element 185 is axially on a to the first radial portion 93 facing side of the second axial section 160 arranged. The engagement element 185 is tooth-like. The engagement element ends here 185 in a first rotation plane. The second axial section 160 ends frontally in a first plane of rotation offset second rotation plane.

The third connection 170 points in the first radial section 93 of the first disk carrier 85 a corresponding to the engagement element 185 trained recess 195 on. It is for each engagement element 185 one recess each 195 intended. The engagement element 185 engages in the recess assigned to it 195 a, so in this way the third plate carrier 140 torque-locking with the first plate carrier 85 connected is. Further, by the connection 170 a centrifugal force-induced widening of the second axial section 160 avoided.

In the embodiment, the third internal toothing is an example 180 in sections in the engagement element 185 continued axially. Of course, the third internal toothing 180 also on the second axial section 160 be limited so that the engagement element 185 a different profile to the second axial section 160 having.

In order during and in the provision of the actuating force F in the friction partners 65 . 70 , in particular by grinding the friction partners 65 . 70 to each other, introduced heat from the Reibpaket 55 . 60 to dissipate, is the coupling device 10 in a housing 200 (dashed in 1 shown). The housing 200 is at least partially with a coolant 205 filled.

The first plate carrier 85 points in the first axial section 92 at least a first passage opening 210 on. The second plate carrier 135 has at least one second passage opening 215 on. The third plate carrier 140 points in the second axial section 160 at least a third passage opening 220 on. The fourth plate carrier 145 has at least a fourth passage opening 225 on. For better flow through the coolant 205 through the respective plate carrier 85 . 135 . 140 . 145 can the respective plate carrier 85 . 135 . 140 . 145 in each case a plurality of circumferentially offset respective respective passage openings 210 . 215 . 220 . 225 exhibit. The passage openings 210 . 215 . 220 . 225 can be different geometric design. So the through hole 210 . 215 . 220 . 225 be formed, for example, slot-shaped.

The coolant 205 is from radially inside the second Reibpaket 60 over the fourth passage opening 225 fed. The coolant flows through it 205 radially from the inside to the outside radially in the second annular gap 175 arranged second friction package 60 , The coolant leads 205 Heat, especially when the friction partners 65 . 70 of the second friction package 60 grind together, from the second friction package 60 from. This will overheat the second friction pack 60 and excessive wear of the second friction pack 60 reliably avoided.

Through the second and third passage opening 215 . 220 is the second annular gap 175 fluidic with the first annular gap 151 connected. The coolant 205 is due to centrifugal force on the second and third passage opening 215 . 220 from the second annular gap 175 towards the first annular gap 151 promoted. The coolant 205 flows through the first annular gap 151 arranged first friction package 55 and thereby leads heat from the first Reibpaket 55 from. The heat can be in the first friction package 55 especially arise when the friction partners 65 . 70 of the first friction package 55 , For example, when engaging the clutch device 10 , grind together. After flowing through the first annular gap 151 and the first rubbing package 55 the coolant enters 205 radially outward from the first annular gap 151 over the first passage opening 210 out. The coolant 205 can be fed back from radially outward to radially inward via conveying means, not shown, so as to close the cooling liquid circuit.

To a leakage current 230 (dashed in 2 represented) via the third connection 170 to avoid, has the coupling device 10 a Kühlflüssigkeitsleiteinrichtung 235 on. The Kühlflüssigkeitsleiteinrichtung 235 serves to cool the coolant 205 from the second annular gap 175 to the first annular gap 151 to conduct and the leakage current 230 about the third connection 170 from the second annular gap 175 towards the first actuator 125 to reduce. This can be the two Reibpaketen 55 . 60 supplied coolant 205 on the one hand be determined exactly in the development, on the other hand, the first friction package 55 with sufficient coolant 205 supplied, so that overheating of the friction partners 65 . 70 of the first friction package 55 reliably avoided.

3 shows an exploded view of components of the coupling device 10 , The Kühlflüssigkeitsleiteinrichtung 235 has a ring section 240 on. The ring section 240 extends completely on a circular path around the axis of rotation 15 , Furthermore, the Kühlflüssigkeitsleiteinrichtung 235 a fixing section 245 and at least one guide section 250 on. The attachment section 245 and the lead section 250 are radially on a common side to the ring section 240 arranged. In this case, by way of example, the lead section 250 and the attachment section 245 radially outside of the ring section 240 arranged. The attachment section 245 and the lead section 250 can also radially inward to the ring section 240 be arranged. Furthermore, it is also conceivable that the leading section 250 and the attachment section 245 on different sides to the ring section 240 are arranged. The attachment section 245 and the lead section 250 are circumferentially offset from each other on the ring section 240 arranged. Here is the lead section 250 at least partially adjacent to the recess 195 the third connection 170 arranged. The attachment section 245 is preferably circumferentially offset from the recess 195 arranged.

4 shows a detail of a perspective view of the Kühlflüssigkeitsleiteinrichtung 235 , The lead section 250 and the attachment section 245 are arranged in a predefined pattern. Here are the lead sections 250 arranged in pairs, wherein on Leitabschnittpaar in the circumferential direction in each case a mounting portion 245 is provided. Also, the configuration of the pattern of the arrangement of the guide sections 250 and the attachment section 245 be chosen differently.

The ring section 240 has a stiffening 255 on. The stiffening 255 is formed in the embodiment as a bulge on a circular path about the axis of rotation 15 in the ring section 240 is provided. The stiffening 255 can also be designed differently. Furthermore, on the stiffening 255 be waived. The stiffening 255 can only partially in the ring section 240 be provided.

The lead section 250 has an axial area 256 on. The axial area 256 extends in the axial direction and lies radially inwardly on an inner peripheral surface 260 of the engagement element 185 and / or the second axial section 160 of the third disc carrier 140 at. To krafttechnisch cheap connection of Axialbereichs 256 has the lead section 250 arch area 261 on. The bow area 261 is with a fixed end with the ring section 240 connected. On a side opposite the fixed end is the axial area 256 at the bow area 261 arranged. The bow area 261 ensures that the axial area 256 to the inner peripheral surface 260 of the third disc carrier 140 is pressed. As a result, the Kühlflüssigkeitsleiteinrichtung 235 Position yourself in the radial direction independently of play.

Here are the lead section 250 and the engagement element 185 arranged overlapping in the circumferential direction. In this case, an overlap in the circumferential direction is understood to mean that in the case of a projection of the guide section 250 and the engagement element 185 in the radial direction on a cylinder jacket surface, extending on a circular path about the axis of rotation 15 extends, the lead section 250 and the engagement element 185 at least partially overlap. This arrangement has the advantage that the leakage current 230 over the recess 195 is minimized. In particular, secures the bow area 260 that the cooling liquid 205 in the axial direction on a recess 195 directed away.

Of particular advantage here is when the engagement element 185 and the lead section 250 are formed in the circumferential direction substantially the same width, so that the guide section 250 completely with the engagement element 185 overlaps in the circumferential direction. It is particularly advantageous if the engagement element 185 and the lead section 250 an equal angle segment to the axis of rotation 15 lock in.

5 shows a section through a semi-longitudinal section through the in 1 shown coupling device 10 along a second cutting plane. The second cutting plane is around the axis of rotation 15 tilted to the first sectional plane (see. 1 and 2 ).

The attachment section 245 is preferably inclined with respect to the axis of rotation 15 arranged. As a result, the attachment portion functions 245 as a spring tongue. Here is the attachment section 245 with a firm ending 265 with the ring section 240 connected. A free end 270 of the attachment section 245 lies on a face 275 of the second axial section 160 of the third disc carrier 140 at. In this case, the attachment section braced 245 the Kühlflüssigkeitsleiteinrichtung 235 opposite the face 275 and press the ring section 240 against the first radial section 93 , This allows a play-free positioning and attachment of Kühlflüssigkeitsleiteinrichtung 235 be ensured in the axial direction. As a result, the coupling device 10 be designed very quiet.

It should be noted that in the 1 to 5 shown features of the coupling device 10 may also be designed differently. In particular, it is also conceivable that the coupling device 10 is designed as an axial double clutch.

It should also be noted that in the 1 to 5 shown features can also be combined differently with each other.

LIST OF REFERENCE NUMBERS

10

 coupling device

15

 axis of rotation

20

 input side

25

 output side

30

 first hub

35

 second hub

40

 first transmission input shaft

45

 second transmission input shaft

50

 rotor

55

 first friction package

60

 second friction package

65

 first friction partner

70

 second friction partner

75

 first external toothing

79

 first internal toothing

80

 Driver unit

85

 first plate carrier (outer plate carrier)

86

 pressure ring

90

 driver part

91

 first connection

92

 first axial section

93

 second first radial section

95

 second connection

105

 first actuating device

110

 second actuating device

115

 first pressure chamber

120

 second pressure chamber

125

 first actuating element

130

 second actuator

135

 second plate carrier (inner plate carrier)

140

 third plate carrier (outer plate carrier)

145

 fourth plate carrier (inner plate carrier)

150

 second external toothing

151

 first annular gap

155

 second internal toothing

160

second axial section

165

 second radial section

170

 third connection

175

 second annular gap

180

 third internal toothing

185

 engaging member

190

 spur gearing

195

 recess

200

 casing

205

 coolant

210

 first passage opening

215

 second passage opening

220

 third passage opening

225

 fourth passage opening

230

 Leakage flow of the coolant

235

 Kühlflüssigkeitsleiteinrichtung

240

 ring section

245

attachment section

250

 guide section

255

 stiffening

256

axial

260

inner peripheral surface

261

 arch area

265

 solid end

270

 free end

275

 face

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• EP 1382872 [0002]

Claims (10)

Coupling device ( 10 ) which is rotatable about an axis of rotation ( 15 ) is storable, - comprising a plate carrier ( 85 ), another disc carrier ( 140 ) and a Kühlflüssigkeitsleiteinrichtung ( 235 ), - wherein the plate carrier ( 85 ) radially inwardly toward a first annular gap ( 151 ), wherein the further plate carrier ( 140 ) radially inwardly a second annular gap ( 175 ), wherein the plate carrier ( 85 ) by means of a connection ( 170 ) with the further plate carrier ( 140 ) is connected torque-locking, - wherein the first annular gap ( 151 ) over the further plate carrier ( 140 ) for supplying a cooling liquid ( 205 ) from the second annular gap ( 175 ) to the first annular gap ( 151 ) is fluidically connected, - wherein the Kühlflüssigkeitsleiteinrichtung ( 235 ) is configured, a leakage current ( 230 ) of the cooling liquid ( 205 ) from the second annular gap ( 175 ) over the connection ( 170 ) to reduce. Coupling device ( 10 ) according to claim 1, - wherein the compound ( 170 ) on the front side of the further plate carrier ( 140 ) at least one engagement element ( 185 ), wherein the compound ( 170 ) in the plate carrier ( 85 ) a corresponding to the engagement element ( 185 ) formed recess ( 195 ), wherein the engagement element ( 185 ) in the recess ( 195 ), - wherein the Kühlflüssigkeitsleiteinrichtung ( 235 ) at least partially the recess ( 195 ) and the leakage current ( 230 ) over the recess ( 195 ) at least partially blocked. Coupling device ( 10 ) according to claim 1 or 2, - wherein the Kühlflüssigkeitsleiteinrichtung ( 235 ) a ring section ( 240 ), an attachment section ( 245 ) and a lead section ( 250 ), - wherein the attachment portion ( 245 ) and the lead section in ( 250 ) Circumferential direction offset from each other on the ring section ( 240 ) are arranged. Coupling device ( 10 ) according to claim 3, - wherein the guide section ( 250 ) at least partially adjacent to the recess ( 195 ) is arranged, - wherein the attachment portion ( 245 ) preferably in the circumferential direction offset from the recess ( 195 ) is arranged. Coupling device ( 10 ) according to claim 3 or 4, wherein the guiding section ( 250 ) and the attachment section ( 245 ) radially on a common side to the ring portion ( 240 ) are arranged. Coupling device ( 10 ) according to one of Claims 3 to 5, - the guide section ( 250 ) is preferably arc-shaped, at least in sections, 250 ) at least one axial region ( 255 ), wherein the axial region ( 255 ) on a peripheral surface ( 260 ) of the further disk carrier ( 140 ) is present. Coupling device ( 10 ) according to one of Claims 3 to 6, - the guide section ( 250 ) and the engagement element ( 185 ) are arranged overlapping in the circumferential direction, - wherein preferably the engagement element ( 185 ) and the lead section ( 250 ) are formed in the circumferential direction substantially the same width, - preferably wherein the engagement element ( 185 ) and the lead section ( 250 ) an equal angle segment to the axis of rotation ( 15 ) lock in. Coupling device ( 10 ) according to one of Claims 3 to 7, - the guide section ( 250 ) and the attachment section ( 245 ) are arranged in the circumferential direction in a regular pattern. Coupling device ( 10 ) according to one of claims 3 to 8, - wherein the ring section ( 240 ) at least in sections a stiffening ( 255 ), wherein preferably the stiffening ( 255 ) at least in sections around a circular path about the axis of rotation ( 15 ) is guided. Coupling device ( 10 ) according to one of claims 1 to 9, - comprising a first friction packet ( 55 ) and a second friction package ( 60 ), - wherein the first friction package ( 55 ) in the first annular gap ( 151 ), wherein the second friction package ( 60 ) in the second annular gap ( 175 ) is arranged, - wherein the plate carrier ( 85 ) a first radial section ( 93 ) and a first axial section ( 92 ), wherein the first axial section ( 92 ) radially outwardly with the first radial portion ( 93 ) and is formed, at least one friction partner ( 65 . 70 ) of the first rubbing package ( 55 ), the further plate carrier ( 140 ) a second axial section ( 160 ), wherein the second axial section ( 160 ), a friction partner ( 65 . 70 ) of the second rubbing package ( 60 ), - wherein the end face on the second axial section ( 160 ) the engagement element ( 185 ) is arranged, - wherein the second axial section ( 160 ) an end face ( 275 ), - wherein the end face ( 275 ) offset in the circumferential direction to the engagement element ( 185 ) is arranged Axially between the first radial section ( 93 ) and the face ( 275 ) the attachment section ( 245 ) is arranged.

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