DE10131766A1 - Combination for assembling a drive train with a drive unit, a multiple clutch unit that can be assembled as a complete unit, a gearbox and, if applicable, a torsional vibration damper arrangement, as well as a corresponding clutch unit - Google Patents

Abstract

A combination of a drive unit, a multiple clutch device, possibly a double clutch device, a transmission and possibly a torsional vibration damper arrangement for the construction of a motor vehicle drive train is proposed, in which the multiple clutch device for torque transmission is arranged between the drive unit and the transmission, wherein the coupling device has a first clutch arrangement assigned to a first transmission input shaft (22) of the transmission and a second coupling arrangement assigned to a second transmission input shaft (24) of the transmission in order to be able to bring a drive shaft (14) of the drive unit into torque transmission connection, components of the combination are designed in such a way and / or the combination has at least one axial support device (200, 202) such that the coupling device as a finished structural unit between the drive unit and can be mounted on the gearbox and - if necessary with the help of the axial support device (200, 202) - can be positioned axially by means of axial support without one or more parts of the structural unit having to be dismantled in the course of the assembly process.

Description

The invention relates generally to a multiple coupling device, possibly Double clutch device, for arrangement in a drive train of a motor vehicle between a drive unit and a transmission, wherein the clutch device is a first transmission input shaft the first clutch arrangement assigned to the transmission, possibly wet-running Multi-plate clutch arrangement, and one of a second transmission input shaft of the transmission associated second clutch assembly, possibly wet running multi-plate clutch arrangement, for torque transmission between the drive unit and the gearbox. The invention relates also a combination of such a multiple or double clutch tion device, a drive unit (possibly internal combustion engine) and a gearbox designed with regard to the coupling device (especially double clutch or powershift transmission), as well as one such a combination constructed motor vehicle drive train.

In various German patent applications by the applicant wet-running double clutch constructions disclosed, which in the finished provided drivetrain at the radially nested transmission input waves (at least one of the transmission input shafts is a hollow shaft formed and one of the transmission input shafts extends through a other gear input shaft designed as a hollow shaft) in both axial directions supported. Reference is made to the published documents DE 100 04 179 A1, DE 100 04 186 A1, DE 100 04 189 A1, DE 100 04 190 A1, DE 100 04 195 A1, which belong to the same patent family.  

In the constructions of the aforementioned publications, the two radially nested multi-plate clutch arrangements one each Output side with a hub part on a respective end section of the assigned transmission input shaft is pushed on or becomes. That to the output side of the radially inner multi-plate clutch arrangement The associated hub part is the double when fully assembled Support the clutch in both axial directions on the transmission input shafts bar, with a certain axial that can be adjusted during assembly game. Support is provided in the direction of the gearbox via an axial bearing on one end face of the other, radially outer transmission input shaft and towards the drive unit via a on the radially inner gear gear shaft to be attached after the hub part has been pushed on ring. For setting the length compensation for thermal expansion Serving axial play is - if necessary - between the hub part and the snap ring is fitted with at least one shim.

The installed side serves as the input side of the double clutch one through an opening of a lid or a closure wall the input bell or input shaft which extends over a driving plate with the outer disk carrier of the radially outer Multi-plate clutch assembly is coupled as the input side of this Coupling arrangement is used. The hub part of the radially inner lamella Coupling assembly and the radially inner transmission input shaft on which this hub part is pushed on or has to be pushed on Direction to the drive unit through the input hub or input shaft covered, so that the axial support towards the drive unit given snap ring cannot be fitted if the input hub or input shaft is in place. When assembling the double clutch Therefore, in the event of delivery of a pre-assembled double clutch the double clutch can be partially disassembled to the Attach the double clutch on the transmission side and be able to fix it axially. at the constructions of the applicant mentioned can be according to the  Sliding on the pre-assembled double clutch as a unit a safety device securing the driving plate on the outer disk carrier ring or snap ring and the input hub or input shaft together drive plate welded to it can be removed. After hiring the axial play and assembly of the snap ring are then these components to reassemble. The described, additional disassembly and Assembly steps and the game setting extensive assembly effort has correspondingly high costs for the motor vehicle manufacturer. There there is a risk that the axial play must be measured and adjusted incorrect settings due to measurement errors or incorrect selection of one Shim. Overall, it must be stated that a relative great risk of incorrect assembly or incorrect adjustment of the axial play when Motor vehicle manufacturers exist, which also results from this Warranty claims are problematic. Also is alone the time required for the complex assembly and adjustment is essential Cost factor, for example due to a correspondingly extended Cycle time on the production line.

In contrast, the invention has for its object the assembly a coupling device of the type mentioned in the drive train to simplify and - as far as possible - without setting an axial play out with regard to a length compensation for thermal expansion come.

To solve this problem is for the combination mentioned above proposed that components of the combination are designed in this way or / and the combination or its components at least one (possibly additional or separate) axial support device that the coupling device as a finished unit between the drive unit and the gearbox can be installed and - if necessary with mediation the axial support device - can be positioned axially by axial Support without one or more parts of the unit in the course of  Assembly process must be dismantled. For axial support can be provided that the coupling device in the direction of Gearbox is axially supported or supportable and / or in the direction of Drive unit is axially supported or can be supported. It is preferred that it the axial support of the coupling device in the direction of Gear or / and towards the drive unit by an elastic, through at least one elastic or resilient element mediated support is.

A wide variety of configurations are within the scope of the proposed invention possible, which can be realized alone or in combination with each other can. It is particularly preferred that the structural unit on the transmission side or can be plugged on, so that the structural unit or coupling device can be easily installed, for example on a conveyor belt, by hand or machine. When attaching or plugging in, a fuse is preferably used activated for axial securing of the assembly, an automatic Activation of the fuse is particularly preferred.

The fuse may include a snap or snap connection can preferably be produced without the use of a tool and a holder function for the clutch. The snap or snap connection should be solvable for repair purposes or the like, if necessary with the help taking a tool.

After plugging in or plugging on or - preferably - when plugging in or opening An axial preload can be placed on at least one component of the Coupling device can be applied that the component and thus preferred as further components of the coupling device, possibly the entire building biased towards the gearbox to a defined installation position guarantee. The assembly can move towards the gearbox Abge at least one, preferably only one of the transmission input shafts supports or be supportable.  

The coupling device can generalize the last thought or the assembly in the direction of the gearbox and / or in the direction of Drive unit mediating at least one of the transmission inputs waves axially supported or be supported. With a particularly relevant Construction, the transmission input shafts are nested radially, and it can an axial support of the coupling device in the direction of Gearbox and / or towards the drive unit on a radially inner or / and a radially outer transmission input shaft can be provided. A another possibility is that the coupling device towards Gearbox and / or in the direction of the drive unit with the intermediation of a Oil running radially inside nested transmission input shafts pump drive shaft is axially supported or can be supported. Still a Another possibility is that the coupling device in the direction of Gearbox and / or towards the drive unit through the mediation Output shaft of the drive unit is axially supported or can be supported.

If the combination has a separate one from the coupling device Torsional vibration damper arrangement on the drivetrain between the coupling device and the drive unit is arranged, so can the coupling device in the direction of the gearbox and / or in Rich tion to the drive unit by means of the torsional vibration damper be axially supported or supportable. But it should be mentioned become that such a torsional vibration damper arrangement no compulsory part of the combination or the one built from it Powertrain is. For example, the coupling device can be a have integrated torsional vibration damper arrangement.

In conventional drive trains, the transmission usually has one Gearbox bell on which a receiving space for a clutch Are defined. Such a receiving space for the coupling device can can also be provided in the case of the combination according to the invention. The Coupling device can then in the direction of the gearbox and / or in  Direction to the drive unit through the transmission housing bell be axially supported or supportable.

For example, in the case of a wet-running clutch device, the Combination may have a lid-like closure wall, the one Opening for one associated with an input side of the coupling device Torque transmission element, possibly input hub or input shaft, the Has coupling device and in or on the gearbox bell mounted or mountable to close the recording room. In In this case, the coupling device can move towards the transmission or / and towards the drive unit by means of the lock be axially supported or supportable.

Regarding the already mentioned axial support of the clutch direction towards the gearbox and / or towards the drive unit on at least one of the transmission input shafts in particular thought that this axial support by mediating an exit side the first clutch arrangement and / or an output side of the second Coupling arrangement takes place. Axial support of the coupling tion device towards the gearbox and / or towards Drive unit can be provided such that the output side of the the clutch assembly towards the transmission directly or indirectly the transmission input shaft assigned to the second clutch arrangement or / and towards the drive unit directly or indirectly at the Abge assigned first clutch assembly transmission input shaft is based, or the output side of the clutch assembly in question Direction to the gearbox directly or indirectly on that of the first clutch arrangement associated transmission input shaft and / or in the direction of Drive unit directly or indirectly on the second clutch assembly assigned transmission input shaft is supported, or the output side the clutch assembly in question towards the transmission and in Direction to the drive unit directly or indirectly on this clutch assembly  associated transmission input shaft is supported. In the event of Axial support in both directions is mentioned above three options, the last preferred, because then on the provision of a defined axial play for recording temperature conditions changes in length of the transmission input shafts and relative displacement exercises of the same due to changing deflections of the waves can usually be dispensed with.

In addition to the possibility of the coupling device via at least one of the Axial support of the output sides of the clutch arrangements exists also the possibility of an axial support of the coupling device in Direction to the gearbox and / or towards the drive unit below Mediation of an input side common to the coupling arrangements, if necessary input hub or input shaft, the coupling device hen. This support can be directly or indirectly on at least one of the Transmission input shafts and / or on the oil pump drive shaft (if provided) or / and on the torsional vibration damper arrangement (if provided) and / or on the output shaft of the drive unit or / and on the closure wall (if provided) or / and on the Gearbox bell take place. Another option is an axial support of the coupling device in the direction of the gearbox and / or in Direction to the drive unit via the input side, if necessary a disk carrier to provide one of the clutch arrangements, and for example, directly or indirectly on the closure wall or / and on the gearbox bell. It is particularly ge thought that another coupling device parts enclosing the outside Lamellar beams directly or indirectly through the mediation of only one storage or / and spring arrangement axially supported on the transmission housing bell or is supportable. If a rotating clutch housing is provided, the can have the outer disk carrier or with respect to the outside plate carrier can be separate, so the clutch housing directly  or indirectly through the mediation of a bearing and / or spring arrangement the transmission housing bell axially supported or be supported.

Regarding the support of the coupling device on the closure It is proposed that the entrance side of one dome arrangement, possibly the outer disk carrier of a radially outer Coupling arrangements on an input side, possibly input hub or Input shaft, coupling plate coupling the coupling device directly or with the intermediation of only one bearing and / or spring arrangement the closure wall is axially supported or can be supported, namely preferably in the vicinity of or integrated with a sealing or / and bearing arrangement between the input side of the clutch device and an opening-bounding wall edge effective is.

The possibility of an axial preload for the coupling device provision has already been mentioned. An elastic is preferred Means, possibly spring arrangement, provided, the elastic bias or restoring forces in the axial direction on the coupling device as Applies all or at least a component thereof to the Position the coupling device axially and / or the clutch direction against a gearbox-side support arrangement (possibly at least one of the transmission input shafts).

In connection with the above-mentioned plugging or plugging on the assembly can be provided that at least one of the assembly associated component of the coupling device, which is a radial abutment tongue for the coupling device as a whole or at least for one Output side of one of the clutch arrangements on a transmission side Rotary shaft mediates and / or a rotary connection with this rotary shaft manufactures when installing the coupling device on the rotary shaft is postponed and after postponement on the rotary shaft in one or  supported or supportable in both axial directions, preferably elas is supported or can be supported on the table without dismantling one or the other several components of the assembly is required. It can be between rule the component of the coupling device and the rotary shaft Snap-in or snap-in connection can be produced, which is the axial support as well as possibly an elastic prestress in the axial direction. to Establishing the snap or snap connection can be at least one separate coupling element relative to the component or the rotary shaft be provided, which, after being pushed on, is simultaneously limited axially Recesses of the component and the rotary shaft engages and to Er possibility of being pushed into an associated recess of the com component or the rotary shaft is immersed. The component can do this or the rotary shaft has at least one ramp inclined surface which acts on the coupling link to slide it on and immerses it.

Regarding the formation of the coupling link in detail are different most possible conceivable. The coupling element can, for example, from a coupling bracket or coupling ring, which is at least around extends part of the circumference of the rotary shaft. One way is that the coupling element is designed in the manner of a snap ring. Another Possibility is that the coupling link of a wire ring or wire bracket is formed, the several curved sections with each other set bending direction or / and several grazing, preferably at least least approximately tangential to a circumference of the component or / and a circumference of the rotary shaft extending portions.

The snap-in or snap-in connection mentioned is only one of various Possibilities. Another option is that the combination is a Has support arrangement after the component has been pushed on on the rotary shaft in association with the component and the rotary shaft mon is animal and in the assembled state the axial support of the component mediated on the rotary shaft in at least one axial direction. The support arrangement  can on the one hand on the component and on the other hand on the Rotary shaft or a retaining element attached to it, if necessary a snap ring, attacking elastic or spring arrangement. Regarding the spring Arrangement is proposed that this at least one spring ring include.

The rotary shaft can / the radially outer transmission input shaft of the radial nested transmission input shafts. In this case, the can slidable component associated with this transmission input shaft Coupling hub assigned to the output side of these transmission input shafts Neten clutch assembly. It is also possible that the rotary shaft a / the radially inner transmission input shaft of the radially nested Transmission input shafts is. In this case, the postponed com component a coupling hub assigned to this transmission input shaft Output side of the clutch assigned to this transmission input shaft arrangement.

Is a mechanically driven by means of the drive unit Oil pump provided, an oil pump that mediates the drive Radial drive shaft in the radially nested transmission input shafts run. In this case, this oil pump drive shaft can be the first one hend treated shaft form, and it can be provided that the slidable component an input hub or input shaft of the Coupling device is the input sides of both coupling arrangements is assigned. This input hub or input shaft can on the one hand for direct or indirect coupling of the abrasion shaft of the Serve drive unit, possibly via a / the torsional vibration damper arrangement, as well as the drive connection between the oil Manufacture the pump drive shaft and the output shaft of the drive unit.

A sealing or closure arrangement can generally be provided be an oil flow path between the oil pump drive shaft and the  Seals the input hub or input shaft in the direction of the drive unit or closes. The sealing or closure arrangement is preferred wise mountable during the assembly of the support arrangement and / or at least partially formed by the support arrangement itself.

A preferred one, with others of the above and below Chenen design options combines combinable design is characterized by the fact that a / the component is based on a few at least one other, designed as a hollow shaft rotating shaft extending rotation shaft can be pushed on and on this rotating shaft in the direction of the gearbox is supported, and that one drive unit end of the other Rotary shaft axial movement and / or linear expansion play in Rich tion to the drive unit remains. This measure will result in a fold way for required "scope" for the end of the other spin shaft, so that the elaborate setting of an axial play ent is honorable. There can be one between the component and the rotating shaft effective mediator be provided, the support in Rich mediated transmission. A ring or Bracket element are used, the one hand in a groove of the rotary shaft or the component engages or can be brought into engagement with it and on the other hand against a stop ring surface of the component or Rotary shaft is present or can be brought into contact with the system or on both sides of one respective stop ring surface of the rotary shaft and the component or can be brought into plant. With a view to easy assembly the ring or bracket element can be pushed axially onto the rotary shaft. The ring or bow element is preferably made of round wire, in order to avoid as much voltage as possible on the possibly heavily loaded shaft to create points through sharp-edged corners or notch effects. In In this context, it is useful for the groove and / or the impact ring surface or at least one of the stop ring surfaces Rounding according to a cross section of the ring or bracket element provided.  

According to another approach regarding the axial support towards Drive unit mediated by its output shaft is proposed that a between a coupling end of an output shaft of the An drive unit and an input side, possibly input hub or input shaft, the coupling device effective, preferably elastic axial support arrangement is provided at the coupling end and / or at the Input side is radially secured or can be secured and at least one crowned or has spherical contact surface, which on an assigned counter Contact surface of the coupling end or the input side is in or Plant can be brought. Is the moment transfer between the Ab drive shaft and the input side via a torsional vibration damper arrangement (possibly of the two-mass flywheel type), so by the spherical or spherical design of the contact surfaces in a simple manner be achieved that the contact between the contact surface and the Counter-contact area with a small radius in relation to the decisive Rotary shaft takes place, i.e. a large system diameter is avoided. This is with regard to the torsional vibration damper relative rotation between contact surface and counter-contact surface advantageous, for example, to minimize friction and wear ren.

The counter-contact surface can be a central axial recess of the coupling axially limit the end or the input side, the counter-contact surface is preferably spherical or conical. The contact area and the Counter-contact surface can advantageously be based on an axis of rotation the input side and the output shaft in each case essentially rota be symmetrical and possibly a certain self-centering function exercise relative to each other.

Regarding the axial support arrangement, it is proposed that this an at least partially spherical or spherical support element and possibly includes a separate spring or elastic arrangement.  

The spring or elastic arrangement can be at least one disc spring or comprise at least one plate spring package. The support element can also itself be axially elastic or resilient; in this case, on a separate spring and elastic arrangement may not be necessary become.

So far a seal of a wet room and / or oil channel of the dome lungseinrichtung towards the drive unit is required, that Support element perform a sealing function in this regard. On geson Other sealing elements can then possibly be dispensed with.

Regarding the support in the direction of A different approach proposes that the drive unit Input side, possibly input hub or input shaft, the clutch direction by means of a spring arrangement on an output side of a Torsional vibration damper arrangement or one on / the output shaft of the drive unit coupled, torque transmission member axially supported or can be supported. The spring arrangement can, for example be formed by at least one spring washer, for example in the Kind of a disc spring. The input side on the one hand and the output side or the torque transmission element on the other hand can by means Take-along information is in mutual turning entrainment or be feasible, the driver information, for example, a plug can form teeth.

The invention further relates to a motor vehicle drive train that consists of a combination according to the invention is constructed, and a multiple Coupling device, possibly double coupling device, which is part of a Combination according to the invention can be used. For a multiple coupling lungseinrichtung, possibly double coupling device for the arrangement in a motor vehicle drive train between a drive unit and a transmission, which coupling device a a first transmission input shaft  of the transmission associated first clutch assembly and a second assigned to a second transmission input shaft of the transmission Coupling arrangement for torque transmission between the Drive unit and the transmission, it is particularly proposed that the coupling device is in the form of a prefabricated structural unit and as a finished unit between the drive unit and the transmission can be assembled and axially positioned by axial support without one or more parts of the assembly in the course of the assembly process de must be installed, at least one opposite the unit separate axial support device provided and / or at least a component of the unit with an axial support device is executed, which is an axial support for the assembly towards Gears or / and mediated towards the drive unit, the separate axial support device at least partially opposite The unit can be preassembled on the transmission side and / or on the drive unit side or / and possibly at least partially on the gear unit side or / and can be retrofitted on the drive unit side.

The coupling device can correspond to the coupling device Combination according to the invention can be executed.

The invention further relates to a set of a dome according to the invention tion device and an associated axial support device for Assembly of the double clutch in a motor vehicle drive train. For the Axial support device is proposed that this out is to support the coupling device in the drive train as this in connection with the Kombina according to the invention tion for at least one of the different versions ben was.

The invention is illustrated below with reference to the figures Exemplary embodiments explained in more detail.  

Fig. 1 shows a partially sectioned view of a in a drive train of a motor vehicle between a transmission and a drive unit arranged double clutch with two wet-running multi-plate clutch assemblies, which corresponds to an embodiment of a disclosed in German patent applications disclosed double clutch construction of the applicant and a starting point for the inven dung, and shows in sub-figure 1b a detail of Fig. 1a regarding the axial support of the double clutch in Rich direction to the drive unit on a transmission input shaft.

Fig. 2 shows a first embodiment of a drive train according to the invention, in which an axial support of the Doppelkupp development in the direction of the drive unit is provided on a drive shaft of the drive unit.

Fig. 3 shows a second embodiment of a drive train according to the invention, in which the double clutch in the direction of the drive unit is also supported on the output shaft of the drive unit.

Fig. 4 shows in the sub-figures a), b) and c) various types of spring arrangements that could be used in a drive train according to the invention in accordance with the approach of FIGS. 2 and 3 to provide elastic support for the double clutch in the direction of Provide drive unit on their output shaft.

FIG. 5 shows an embodiment variant of the arrangement according to FIG. 2.

FIG. 6 shows an embodiment variant of the arrangement according to FIG. 3.

Fig. 7 shows a further embodiment of a drive train according to the invention, in which the double clutch is elastically supported in the direction of the drive unit by means of its output shaft.

Fig. 8 shows an embodiment of a drive train according to the invention, in which the double clutch is elastically supported in the direction of the drive unit on an arranged between the double clutch and the drive unit torsional vibration damper arrangement.

Fig. 9 shows in part 9a a further embodiment of a drive train according to the invention, in which the Doppelkupp ment is mediated axially in the direction of the drive unit by means of the output side of one of the Dupp treatment arrangements on an associated transmission input shaft, and in Fig. 9b shows a section through the arrangement of Fig. 9a along line BB.

Fig. 10 shows in the portion of Figure 10a, another embodiment of a powertrain according to the invention with the intermediary of an output side voltages of the Kupplungsanord to an associated transmission input shaft axially in the direction towards the drive unit supported double clutch, and in part 10b is a section through the arrangement of Fig. 10a Line BB.

FIG. 11 shows an embodiment variant of the arrangement according to FIG. 9.

FIG. 12 shows an embodiment variant of the arrangement according to FIG. 10.

Fig. 13 shows in the partial figure 13a a further embodiment with a double clutch, which is axially supported by means of the output side of one of its clutch arrangements on an associated transmission input shaft in the direction of the drive unit, wherein in the partial figure 13b is an enlarged detail showing the support.

Fig. 14 shows an embodiment of a drive train according to the invention, in which an elastic axial support of the double clutch is provided in the direction of the drive unit on an oil pump drive shaft.

FIG. 15 shows a detail of an embodiment variant of the arrangement of FIG. 14.

FIG. 16 shows a further embodiment variant of the arrangement in FIG. 14.

Fig. 17 shows an embodiment of a drive train according to the invention, in which the double clutch is elastically supported on a cover-like closure wall of a gearbox bell in the direction of the drive unit.

Fig. 18 shows an embodiment of a drive train according to the invention, in which the double clutch by means of the radially outer outer plate carrier on the gear housing bell is elastically supported in the direction of the drive unit.

Fig. 1 shows a arranged in a drive train 10 between a drive unit and a transmission clutch 12 double. From the Antriebsein unit, for example an internal combustion engine, only one drive shaft 14 , possibly crankshaft 14 , is shown in FIG. 1 with a coupling end 16 serving to couple a torsional vibration damper, not shown. The transmission is shown in FIG. 1 by one hand, a transmission housing bell 18 limiting mission case portion 20 and two Getrie impressive input shafts 22 and 24 represents, both of which are designed as hollow shafts, said transmission input shaft 22 extending substantially coaxially to the transmission input shaft 24 therethrough. Inside the transmission input shaft 22 , a pump drive shaft 26 is arranged, which is used to drive a transmission-side oil pump, not shown in FIG. 1. A closure or sealing part 180 provides a seal for an axial bore of the input hub 36 in the direction of the drive unit.

As the input side of the double clutch 12 is a clutch hub 34 , which is made of parts 36 and 38 and extends through a central opening of the cover 28 towards the drive unit and is coupled via an external toothing 42 with the torsional vibration damper, not shown.

On the hub 34 , a driver or carrier plate 60 is rotatably attached, which is used for torque transmission between the hub 34 and an outer disk carrier 62 of a first multi-plate clutch arrangement 64 . The outer disk carrier 62 extends in the direction of the transmission and radially inwardly to an annular part 66 , on which the outer disk carrier is rotatably attached and which is mounted by means of an axial and radial bearing arrangement 68 on the two transmission input shafts 22 and 24 such that Both radial and axial forces are supported on the transmission input shafts. The axial and radial bearing arrangement 68 enables a relative rotation between the ring part 66 on the one hand and both the transmission input shaft 22 and the transmission input shaft 24 on the other hand.

On the ring part 66 axially further towards the drive unit, an outer plate carrier 70 of a second multi-plate clutch arrangement 72 is attached in a rotationally fixed manner, the plate package 74 of which is surrounded by the plate package 76 of the first multi-plate clutch arrangement. The two outer disk carrier 62 and 70 are rotationally fixed by the ring member 66 joined together are jointly through tragungseingriff by means of an external toothing of the outer disc carrier 62 is in positive torque stationary support plate 60 with the clutch hub 34 and thus and - via the unillustrated torsional vibration damper - with the crankshaft 14 of the drive unit in torque transmission connection. In relation to the normal torque flow from the drive unit to the transmission, the outer plate carriers 62 and 70 each serve as the input side of the plate clutch arrangement 64 and 72 .

A hub part 80 of an inner disk carrier 82 of the first multi-disk clutch arrangement 64 is arranged on the transmission input shaft 22 by means of splines or the like. In a corresponding manner, a hub part 84 of an inner plate carrier 86 of the second multi-plate clutch arrangement 72 is arranged in a rotationally fixed manner on the radially outer transmission input shaft 24 by means of spline teeth or the like. In relation to the control torque flow from the drive unit in the direction of the transmission, the inner disk carriers 82 and 86 serve as the output side of the first and second multi-disk clutch arrangements 64 and 72 .

In the double clutch 12 actuating pistons for actuating the multi-plate clutch assemblies are integrated, in the case of the embodiment shown for example for actuating the multi-plate clutch arrangements in the sense of engaging. An actuating piston 110 assigned to the first multi-plate clutch arrangement 64 is arranged axially between the radially extending section of the outer plate carrier 62 of the first multi-plate clutch arrangement 64 and the radially extending section of the outer plate carrier 70 of the second multi-plate clutch arrangement 72 and on both outer plate carriers and sealingly guided by means of seals formed axially displaceable and between the disc carrier and Außenlamel 62 and the actuating piston 110 formed pressure chamber as well as a between the actuating piston 110 and the outer disk carrier 70 centrifugal force pressure compensating chamber on the ring part 66th The pressure chamber is connected via a trained in the ring part 66 th pressure medium channel [Bal with an associated hydraulic master cylinder, the pressure medium channel being connected to the master cylinder via a ring sleeve 66 receiving, if necessary, transmission-fixed connection sleeve. The connecting sleeve and the ring part 66 form a rotary connection.

One of the second multi-plate clutch arrangement 72 associated actuation piston 130 is arranged axially between the outer plate carrier 70 of the second multi-plate clutch arrangement 72 and a substantially radially extending and at a distance from the gearbox axial end portion of the ring member 66 non-rotatably and fluid-tightly attached wall part 132 and by means of Seals on the outer disk carrier 70 , the wall part 132 and the ring member 66 axially displaceable and a rule between the outer disk carrier 70 and the actuating piston 130 formed from pressure chamber and a centrifugal pressure compensation chamber formed between the actuating piston 130 and the wall part 132 sealingly. The pressure chamber is connected via a further (already mentioned) pressure medium channel in the same way as the pressure chamber to an assigned master cylinder. By means of the master cylinders, an actuating pressure can optionally (possibly also simultaneously) be applied to the two pressure chambers in order to actuate the first multi-plate clutch arrangement 64 and / or the second multi-plate clutch arrangement 72 in the sense of engagement. For resetting, ie for disengaging the clutches, plate or diaphragm springs are used, of which the plate or diaphragm spring assigned to the actuating piston 130 is accommodated in the centrifugal pressure compensation chamber.

Regarding further details and advantageous embodiments of the double clutch 12 , reference is made to the published documents DE 100 04 179 A1, DE 100 04 186 A1, DE 100 04 189 A1, DE 100 04 190 A1, DE 100 04 195 A1, the disclosure of which in the disclosure content the present application is included. It is pointed out here that in FIG. 1 of the present application the same reference numerals are used as in FIG. 1 of this series of applications belonging to a patent family.

The manner in which the double clutch is supported in the drive train according to FIG. 1 is discussed in more detail below. For the radial position tion of the ring member 66 serve two radial bearing assemblies 90 and 92 , which are effective between the radially outer transmission input shaft 24 and the ring member 66 . The axial mounting of the ring part 66 takes place with respect to a support in the direction of the drive unit via the hub part 84 , an axial bearing 94 , the hub part 80 and a snap ring 96 which axially secures the hub part 80 on the inner transmission input shaft 22 , between the snap ring 96 and the hub part 80 if necessary, one or more shims 97 can be arranged, which serve to set a definite axial play.

The ring part 38 of the coupling hub 34 is in turn mounted on the hub part 80 via an axial bearing 98 and a radial bearing 100 . In the direction of the transmission, the hub part 80 is axially supported on the end bearing of the radially outer transmission input shaft 24 via the axial bearing 94 . The hub part 84 can be supported directly on an associated stop of the transmission input shaft 24 or via the bearing 92 in the direction of the transmission on the transmission input shaft 24 . Since the hub part 84 and the ring part 66 can be rotated relative to one another, an axial bearing can be provided between these components unless the bearing 92 has both an axial bearing and a radial bearing function. The latter is assumed with regard to the construction in FIG. 1.

The assembly of the double clutch 12 according to the older construction of FIG. 1 in the drive train, especially on the transmission, can be carried out in the following way: A preassembled double clutch 12 is provided with the ring part 66 , the hub parts 80 and 84 and the input hub 34 on the shaft arrangement 22 , 24 , 26 postponed. The snap ring 97 has not yet been installed or removed. Subsequently, the input hub 34 together with the driving plate 60 is dismantled, for which purpose the securing ring or snap ring 174 has to be released. Thereafter, to set an axial play, which is to absorb temperature-related changes in length of the transmission input shafts and axial movements due to deflections of the transmission input shafts, one or more shims 97 next to the hub part 80 can be pushed onto the transmission input shaft 22 and then the snap ring 96 can be fitted. Then you have to mount the input hub 34 together with the associated bearings 98 and 100 as well as the drive plate 60 attached to the input hub 36 and secure it with the ring 174 on the outer disk carrier 62 : The input hub 34 together with the drive plate 60 is then switched by the ring 74 , the outer disk carrier 62 , the ring part 66 , the bearing 92 , the hub part 84 , the thrust bearing 94 , the hub part 80 , the built-in shim arrangement 97 and the snap ring 96 are also axially supported by the transmission input shaft 22 in the direction of the drive unit.

In contrast, in the construction of FIG. 2, a snap ring corresponding to the snap ring 92 for axially supporting the double clutch in the direction of the drive unit is dispensed with. Instead, axial support of the input hub 34 on the crankshaft flange 16 is provided by means of an elastic support arrangement which comprises a spring arrangement 200 and a spherical or spherical support element 202 which are inserted radially on the inside in a retaining collar 204 of the input hub 34 and radially through the retaining collar 204 and also be held axially independent of the coupling end 16 .

The support element 202 has a spherical or spherical contact surface which, when the drive train is fully assembled, bears against a counter-contact surface of an axial recess in the coupling end 16 . The relative rotational movement of the torsional vibration damper, not shown, occurs at the contact points. A small contact radius is therefore provided so that the friction and wear that occur are minimized.

The adjustment of a tolerance compensation (a certain axial play) can be dispensed with, since the spring arrangement 200 , possibly formed by a plurality of disc springs, is provided, which can accommodate axial changes in length or axial movements. Instead of disc springs, a compression spring arrangement or a combination of at least one disc spring and at least one compression spring could also be used. Fig. 4 shows (without claim to completeness) some suitable examples. For example, one plurality of disc springs in the same direction layers (see. Fig. 2), at least two disc springs in opposite directions layers (Fig. See FIG. 4b), two sets of cup springs in opposite directions layers (see. Fig. 4a) or a plate spring having a helical compression spring combined (see Fig. . 4c). In this way, optimal damping can be achieved with regard to the expected crankshaft shocks, whereby, if necessary, greased plate spring assemblies can be provided.

According to FIG. 2, the axial support for the double clutch in the direction of the drive unit is achieved solely by arranging the arrangement 200 , 202 . If the drive train has not yet been assembled, the double clutch fitted to the transmission input shaft is not secured in an axial direction pointing away from the transmission. A transport lock tion of the double clutch in the still open bell can, for example, be achieved by the cover 28 . If a function test is to be carried out with the bell open, the supporting function of the output shaft, possibly crankshaft 14 , can be performed by a driving tool.

Fig. 3 shows a variant in which the function of the Federanord voltage 200 and the support element 202 by an elastic Abschlußele element 202 ', for example a rubber element, is taken over. This makes the Mon particularly easy, it only needs the support element 202 'to be inserted into the retaining collar 204 before the drive train is assembled. The support element 202 'can also take over the sealing function or closure function of the element 180 according to FIG. 2.

The variant according to FIG. 3 is advantageous in several respects compared to the variant according to FIG. 2. As is evident from the foregoing, the number of components is reduced and assembly is made easier. In addition, the elasticity of the elastic support element 202 'allows a certain compensation of a center or angular offset between the output shaft 14 on the one hand and the transmission input shafts 22 , 24 , on the other hand.

In the examples of FIGS . 2 and 3, the hub part 80 is supported, as in the construction of FIG. 1, via the axial bearing 94 on the radially outer gear input shaft 24 . Since the axial positions of the gearbox input shafts 22 and 24 are variable both through thermal expansion and also through the toothing, possibly helical toothing, from the hub parts 80 , 84 , alternating moments can result in considerable loads for the supporting or supported components , According to the examples of FIGS . 5 and 6, this is avoided by the fact that a defined axial play is provided between the hub part 80 and the radially outer gear input shaft 24 . The hub part 80 is now no longer supported in the direction of the transmission via the axial bearing 94 on the radially outer transmission input shaft 24 , but can be provided on the hub part 84 via an axial bearing 94 'which extends less radially inwards. Another, preferred variant is that the axial bearing 94 'has no axial support function for the hub part 80 , but that it is supported on the transmission input shaft 22 in the direction of the transmission. The force introduction from the hub part 80 into the transmission input shaft 22 can, for example, take place in a form-fitting manner by means of a support ring 206 , for example a round wire ring, which acts between the associated support ring surfaces of the hub part 80 on the one hand and the transmission input shaft 22 . The use of a round wire ring is particularly advantageous in that, in particular in the case of rounded support ring surfaces or possibly a rounded groove in the heavily loaded transmission input shaft 22, voltage peaks (for example due to sharp-edged corners or notch effects) acting on the shaft are avoided or at least significantly reduced become.

The play between the transmission input shaft 24 and the hub part 80 is dimensioned such that all expected axial displacements of the shaft 24 can be absorbed. Remaining axial movements between the transmission input shaft 22 and the output or crankshaft 14 are absorbed elastically in the manner described by the spring arrangement 200 or the support element 202 '.

Another way of elastic axial support of the double clutch towards the drive unit (usually an internal combustion engine) is shown in Fig. 7.

An annular coupling element 210 with a coupling flange 212 is attached to the drive shaft 14 and is coupled to the coupling hub 34 via a spline 42 . A disc spring 214 , which acts between the coupling hub 34 and the coupling flange 212, absorbs or at least dampens axial shocks on the part of the output shaft 14 . Furthermore, the plate spring 214 has the preload and tolerance compensation function already described in connection with the other exemplary embodiments.

The coupling element 210 can, for example, carry an additional rotating mass via a flexible plate, which serves to set a moment of inertia connected to the drive unit and reduces rotational irregularities of the drive unit. The additional mass can be implemented with an integrated starter ring gear.

A torsional vibration damper arrangement can be integrated into the double clutch itself and act, for example, between the driving plate 60 and the outer plate carrier of the radially outer plate clutch arrangement. The double clutch can be designed with a stationary housing 216 , which is accommodated together with the double clutch in the bell housing and delimits a wet space, which is mounted on the coupling flange 212 by means of a radial bearing 218 and is sealed in the direction of the drive unit by means of a radial shaft seal 220 and a sealing ring 221 , Exemplary embodiments for corresponding double clutches are in the German patent application No. 101 15 454.2 filed on March 29, 2001 by the applicant entitled "Multiple clutch device, possibly in combination with a torsional vibration damper arrangement and / or an electric machine" and in the priority application (German patent application) No. 101 15 236.1 dated March 28, 2001 with the title "Multiple coupling device, optionally in combination with a torsional vibration damper arrangement", the disclosure of which is fully incorporated by reference into the disclosure of the present application.

is provided between the drive unit and the gearbox a torsional vibration damper arrangement, the double clutch can be axially supported in the direction of the drive unit by means of the torsional vibration damper arrangement. A corresponding construction is shown in Fig. 8. Here, between the input hub 34 of the double clutch and an output hub part 220 of a torsional vibration damper, a spring arrangement 222 , for example a plate spring, is arranged, which on the one hand for mitigating or damping shocks originating from the crankshaft 14 and on the other hand together with a further spring arrangement 224 , possibly disc spring 224 , ensures an axial positioning of the input hub 34 , tolerances and axial displacements or changes in position being compensated for.

Referring to FIG. 8, the drive plate 60 and the input hub 34-made geson, via gears 226, 228 standing in rotary driving engagement portions, and the drive plate 60 by means of a radial and axial bearing, if necessary, a flanged bush 99, mounted on the hub portion 80. For further possible refinements of the construction shown in FIG. 8, reference is made to the content of the applicant's German patent application No. 101 10 145.7, filed on March 2, 2001, entitled "Multiple Coupling Device" and to the priority application (German patent application) No. 101 03 306.0 dated January 25, 2001 with the title "Mehrfach -kuppel device", the disclosure of which is fully incorporated by reference into the disclosure of the present application.

In the above-described exemplary embodiments according to FIGS. 2 to 8, the axial support of the double clutch in the direction of the drive unit on the transmission input shaft arrangement has been dispensed with, in particular the snap ring 96 according to FIG. 1 has been omitted, and instead for axial support of the double clutch in the direction of the drive Unit with the intermediary of their output shaft, in the case of FIGS. 7 and 8 via the coupling element 210 and the torsional vibration damper, respectively. When assembling the double clutch on the transmission, it can simply be plugged onto the transmission input shaft arrangement as a finished structural unit, and in contrast to the older construction in FIG. 1, no component of the structural unit needs to be dismantled in order to achieve the axial support in the direction of the drive unit, since attack the supporting components on the drive unit side of the input hub 34 on this input hub.

Fig. 9 shows a solution in which the double clutch as a unit can be plugged onto the transmission input shaft arrangement and can be axially supported in the direction of the drive unit without the need for partial disassembly on the transmission input shaft arrangement, specifically on the basis of an automatically engaging or snapping axial securing device, which in the present example comprises a resilient securing member 230 bent from a suitable wire or the like, which is inserted in an annular groove 232 in the axial end region of the radially inner transmission input shaft 22 and which engages or engages between a preload slope 234 and an axial stop 236 of the hub part 80 in the assembled state of the double clutch the bias slope 234 engages.

The securing member 230 is preassembled on the transmission input shaft 22 before the double clutch is installed. The complete double clutch can then be pushed on. When slid on, an upward slope 238 of the hub part 80 acts on the securing member 230 , so that this makes a pivoting movement and / or an immersion movement in the groove 232 , thereby making it possible for the hub part 80 to be pushed over the securing member.

The axial dimensions are preferably such that, in the assembled state, the securing member 230 bears radially outward against the prestressing slope 234 under radial prestress and thus exerts an axial pre-tensioning force on the hub part 80 and thus on the entire double clutch in the direction of the transmission. The optionally as a stop nose bezei chenbare axial stop 236 serves primarily as a centrifugal fuse, so that prevents the retainer device at high speeds in undefi ned way out of engagement with the biasing slope 234th

Due to the axial preload force exerted by the securing element in Direction to the gearbox is simple, without complex adjustment of an axial play for tolerance compensation and for the inclusion of, for example, temperature-related changes in length taken care of.

The securing member may be gen gebo and several (in this case three) protrusions 240 with a comparatively small bending radius and intervening on the in Fig 9b. Kind shown fashion, approximately tangentially to the transmission input shaft 22 extending, in this case slightly curved intermediate portions 242 have. The bent portions 240 engage the bias slope 234 of the hub part 80 and the intermediate portions 242 abut the groove bottom of the groove 232 .

Depending on how much the prestressing slope 234 is inclined, one will only have to exert comparatively strong axial tensile forces away from the gearbox to dismantle the double clutch (the prestressing slope then serves as a run-up slope which immerses the securing member 230 into the groove 232 ) or it becomes Input hub 34 together with drive plate 60 must be dismantled (see the explanations in connection with FIG. 1; in particular, the locking ring 174 will have to be removed), so that the locking member 230 can be removed or immersed in the groove 232 by a special tool, in order to subsequently remove the double clutch from the transmission input shafts. For safety reasons, it is preferred that the biasing slope 234 is comparatively steep in order to ensure that the double clutch is securely fixed to the transmission and is supported in the direction of the drive unit. If necessary, we will accept the need to disassemble the input hub 34 for disassembling the double clutch.

A similar approach is followed in the construction according to FIG. 10. A snap ring 230 'is inserted as a securing member into an associated annular groove 232 ' of the transmission input shaft 22 which, when the double clutch, which is present as a structural unit, is slid on, mediates the bevel 238 into the groove 232 'so that the hub part 80 is pushed over the resilient snap ring can.

In the assembled state of the double clutch, the snap ring 232 'engages between a ring stop of the hub part 80 in the direction of the gearbox and a plurality of stops 236 ' of the hub part 80 in the direction of the drive unit and is held in the groove 232 'due to the lack of space for disengagement. If a flat snap ring, for example with a rectangular cross section, is used as the snap ring, then the hub part 80 has a certain axial play relative to the snap ring 232 ', defined by the axial spacing of the associated stops of the hub part. In order to avoid the development of noises due to vibrations, an axial corrugation can be provided for the snap ring, so that the snap ring rests under a certain elastic prestress in both axial directions on the assigned axial stops.

In order to disassemble the double clutch, several recesses 244 are provided in the inner circumference of the hub part 80 at a certain angular distance from one another, which enable the snap ring 230 'to be pressed back into the groove 232 ' by means of a tool after dismantling the input hub 34 , so that then the rest of the double clutch can be removed from the transmission input shafts.

In deviation from the preceding statements, it can also be provided that the snap ring 232 'presses radially outward against a corresponding biasing slope of the hub part 80 and thereby generates an axial bias in the direction of the gearbox. For this purpose, the snap ring can be designed in deviation from the usual rectangular cross-sectional shape with an inclined surface assigned to the prestressing bevel, so that the snap ring slides better on the prestressing bevel.

The exemplary embodiments of FIGS . 11 and 12 correspond to the exemplary embodiment of FIG. 9 and the exemplary embodiment of FIG. 10 with respect to the axial securing of the double clutch by snapping or latching onto the transmission input shaft arrangement . Since this snap-in and snap connection also provides axial support for the hub part ensured in direction of the transmission by the axial stops 236 of the hub part 80 80, 80 no further action is required to provide a defined axial play between the radially outer transmission input shaft 24 and the hub part. It is sufficient to pull the thrust bearing between the hub part 80 and the hub part 84 (thrust bearing 94 ') less radially inwards as in the exemplary embodiments of FIGS . 5 and 6 and to dimension the transmission input shaft 24 and the hub part 80 accordingly axially.

In the embodiments of FIGS. 9 to 12, a snap-in or latching connection between the hub part 80 and the radially inner transmission input shaft 22 Ge is provided. Another possibility, shown in FIG. 13, is to provide a snap-in or snap-in connection between the hub part 84 and the radially outer transmission input shaft 24 . For this purpose, the transmission input shaft 24 can be designed in a corresponding manner with an annular groove 250 , into which a spring ring-like locking element 252 , which may be similar to a circlip or similar to the element 230 , is inserted, which is pushed into the groove 250 when pushed on by a run-on slope of the hub part 84 and engages in the assembled state of the double clutch between the axial stops of the hub part 84 or on a biasing slope of the hub part for biasing the hub part 84 in the direction of the transmission. Reference is made to the above explanations regarding the exemplary embodiments of FIGS . 9 to 12, which are easily transferable to the exemplary embodiment of FIG. 13. In order to axially position the ring part 66 , which can also be referred to as an oil supply hub, in particular axially supported in the direction of the drive unit, an additional axial bearing 254 is provided in the embodiment of FIG. 13, which is effective between the ring part 66 and the hub part 84 .

Overall, the double clutch 12 is supported in the direction of the transmission by means of the hub part 80 and the axial bearing 94 on the transmission input shaft 24 . Towards the drive unit, the double clutch 12 is supported or axially secured by means of the ring part 66 , the axial bearing 254 , the hub part 84 and the securing member 252 on the groove boundary surface of the groove 250 remote from the transmission, that is to say on the transmission input shaft 24 . The various components, which are arranged in the drive train between the hub part 84 and the coupling end 16 of the output shaft 14 , are mediated by the outer lamellar carrier 62 and the locking ring 174 by the driving plate 60 and the attached input hub 34 in the direction of the drive unit and on Ring part 66 held axially. A snap ring on the inner transmission input shaft 22 corresponding to the snap ring 96 according to FIG. 1 is dispensed with, as in the exemplary embodiments according to the invention mentioned above.

If a rotary shaft arrangement with a pump drive shaft 26 extending through the nested transmission input shafts 22 , 24 is provided, the double clutch can also be axially supported in the direction of the drive unit by means of the pump drive shaft. Here again, a snap-in or snap-in connection in the manner of the snap-in or snap-in connections can be provided in the exemplary embodiments in FIGS . 9 to 13, which is now effective between the input hub 34 of the double clutch and the pump drive shaft 26 . Since the input hub 34 closes the double clutch towards the drive unit to a certain extent, other solutions are also possible without great effort, in which the support connection between the pump drive shaft and the input hub only after the double coupling has been pushed onto the rotary shaft arrangement in a separate, but little labor-intensive work step is produced, which in particular requires no partial disassembly of the double clutch.

Fig. 14 shows a corresponding embodiment. The double clutch is pushed as a complete unit onto the rotary shafts 22 , 24 , 26 to produce the rotary driving engagement between the pump drive shaft 26 and the input hub 34 . The pump shaft 26 has a toothless end 260 which protrudes from the central opening of the input hub 34 and has a retaining groove 262 for a snap ring 264 . After the double clutch has been pushed on, a sealing ring 266 is first inserted between an annular collar 268 and the pump shaft 26 , which seals off the wet area in the direction of the drive unit, and a spring arrangement, if necessary at least one spring ring 270 and the snap ring 264, is then mounted. The spring arrangement, which enables tolerance compensation and, if necessary, compensates for bending or / and temperature-related length changes or axial position changes, is supported via the snap ring 264 on the pump shaft 26 , which in turn is axially supported by means of a bearing, not shown. This bearing can be arranged in the pump or elsewhere along the pump shaft. It is also conceivable to represent the sealing function of the seal 266 and the axial preloading function of the spring arrangement 270 by means of a single component, possibly a rubber element. There are various possibilities with regard to the spring arrangement, for example a serrated lock washer or the like could also be used.

An embodiment variant of the example in FIG. 14 is shown in FIG. 15. Here is a support element, for example an annular disc, a wave spring or a plate spring 272 between a ring stop 274 of the input hub 34 and two retaining rings, possibly snap rings 276 , held, one of which is in an inner groove of the input hub 36 and the other in an outer groove Pump shaft 26 engages. By appropriate Ausgestal device of the element 274 an elastic axial biasing force can be exerted on the input hub 34 in the direction of the transmission, the element 274 is supported in the direction of the drive unit on the radially inner retaining ring 276 and thus on the pump shaft 26 .

A separate cover part 278 seals the wet space of the double clutch in the direction of the drive unit. For this purpose, is the cover part 278 through the intermediary of a sealing ring 280 with the input hub 36 in sealing engagement.

Another embodiment variant is shown in FIG. 16. The axial support of the double clutch by means of the input hub 36 on the pump shaft 26 in the case of the exemplary embodiment in FIG. 16 essentially corresponds to the implementation in the exemplary embodiment in FIG. 14. However, as the sealing arrangement sealing the wet area in the direction of the drive unit, one of several is here Sealing rings 266 and 267 formed sealing arrangement used. Furthermore, in the exemplary embodiment of FIG. 16, similar to the exemplary embodiments of FIGS . 5, 6, 11, 12, it is ensured that the outer transmission input shaft 24 has a certain axial play at its end ha 03083 00070 552 001000280000000200012000285910297200040 0002010131766 00004 02964t. For this purpose, the axial bearing 94 ′ is again drawn less radially inward so that it does not act between the transmission input shaft 24 and the hub part 80 , and an axial distance between the hub part 80 and the end face of the transmission input shaft 24 is provided.

An axial support of the double clutch 12 in the direction of the drive unit, which makes it possible to dispense with the snap ring 96 on the transmission input shaft 22 according to FIG. 1, can also be achieved by means of the closure cover 28 which closes the housing lock 18 , as is shown by way of example in FIG. 17. The clutch is supported here with the mediation of its driver plate 60 via a spring arrangement, for example a plate spring 290 , and a rotary bearing 292 on the radially inner edge region of the cover 28 . The spring arrangement 290 elastically pretensions the entire clutch in the direction of the transmission, so that tolerance compensation is achieved. The cover 28 is supported via a retaining ring 30 on the housing 20 Getriebege.

Direct support of the double clutch 12 in the direction of the drive unit on the transmission housing 20 can also be provided. A corresponding exemplary embodiment is shown in FIG. 18. Here, an effective spring and pivot bearing arrangement is provided between the outer plate carrier 62 and the gear housing 20 , which prestresses the outer plate carrier in the axial direction of the gear unit and thus enables tolerance compensation on the one hand and secures the double clutch 12 on the gear unit on the other hand. In the present exemplary embodiment, the outer disk carrier 62 is designed with a ring collar projecting radially outward therefrom or a support ring 300 inserted into a groove, on which a spring arrangement, possibly a plate spring 302 , engages, which in turn is arranged via a pivot bearing 304 and possibly a locking ring 306 is supported on the transmission housing 20 .

Regarding the securing of the double clutch on the gearbox and in particular the support of the double clutch in the direction of the drive unit, possibly with elastic pre-tensioning of the double clutch in the direction of the gearbox and / or while ensuring a defined axial play, further variants are conceivable. Thus one could for instance think of a corresponding snap-in or latching connection between the annular part 66 and a stationary or co-rotating provide with this, the transmission side mounted receiving part of the annular part 66 receiving the transmission-side recording.

Claims (58)

1. Combination of a drive unit, a multiple clutch device, possibly a double clutch device ( 12 ), a transmission and possibly a torsional vibration damper arrangement ( 220 ) for building a motor vehicle drive train in which the multiple clutch device ( 12 ) for torque transmission between the drive unit and the transmission is arranged;
wherein the coupling device ( 12 ) has a first transmission input shaft ( 22 ) of the transmission associated with the first clutch arrangement ( 64 ) and a second transmission input shaft ( 24 ) of the transmission has a second coupling arrangement ( 72 ) around an output shaft ( 14 ) of the drive unit to be able to bring the transmission input shafts ( 22 , 24 ) into torque transmission connection;
wherein components of the combination are designed in such a way and / or the combination comprises at least one axial support device ( 200 , 202 ; 202 '; 212 , 214 ; 222 ; 230 ; 230 ';250; 270 , 264 ; 274 , 276 ; 290 , 292 ; 300 , 304 , 306 ), that the coupling device ( 12 ) can be assembled as a finished structural unit between the drive unit and the transmission and - if necessary with the intermediary of the axial supporting device - can be axially positioned by means of axial supporting without one or more parts of the structural unit must be dismantled in the course of the assembly process. 2. Combination according to claim 1, characterized in that the coupling device ( 12 ) is axially supported or can be supported in the direction of the transmission and / or is axially supported or can be supported in the direction of the drive unit. 3. Combination according to claim 2, characterized in that it is in the axial support of the coupling device ( 12 ) in the direction of the gearbox and / or in the direction of the drive unit an elastic, by at least one elastic or resilient element ( 202 ; 202 ';214;222;230; 230 ';252;270;272;290; 302 ) mediated support. 4. Combination according to one of claims 1 to 3, characterized in that the structural unit ( 12 ) on the transmission side can be plugged in or plugged on. 5. Combination according to claim 4, characterized in that the structural unit ( 12 ) can be plugged in or plugged in on the transmission side and can be axially secured with preferably automatic activation of a fuse ( 230 ; 230 '; 252 ). 6. Combination according to claim 4 or 5, characterized in that the securing comprises a snap-in or snap-in connection ( 230 ; 230 '; 252 ), which can preferably be produced without the use of a tool. 7. Combination according to claim 6, characterized in that the snap-in or snap-in connection ( 230 ; 230 '; 252 ) can be released, if necessary with the aid of a tool. 8. Combination according to one of claims 1 to 7, characterized in that after plugging on or plugging on or - preferably - when plugging on or plugging on an axial preload on at least one component ( 34 ; 80 ; 84 ; 60 ; 62 ) Coupling device can be applied, which prestresses the component and thus preferably further components of the coupling device ( 12 ), possibly the entire structural unit, in the direction of the transmission in order to ensure a defined installation position. 9. Combination according to claim 8, characterized in that the structural unit ( 12 ) supports or can be supported in the direction of the transmission via at least one, preferably only one of the transmission input shafts ( 22 , 24 ). 10. Combination according to one of claims 1 to 9, characterized in that the coupling device ( 12 ) in the direction of Ge gear and / or in the direction of the drive unit by means of at least one of the ( 24 ) transmission input shafts ( 22 , 24 ) axially supported or is supported. 11. Combination according to claim 10, characterized in that the transmission input shafts ( 22 , 24 ) are nested radially and that an axial support of the coupling device in the direction of the transmission or / and in the direction of the drive unit on a radially inner and / or a radially outer transmission input shaft is seen. 12. Combination according to one of claims 1 to 11, characterized in that the coupling device ( 12 ) in the direction of the gearbox and / or in the direction of the drive unit by means of a radially nested transmission input shaft ( 22 , 24 ) extending oil pump drive shaft ( 26 ) is axially supported or can be supported. 13. Combination according to one of claims 1 to 12, characterized in that the coupling device ( 12 ) in the direction of Ge gear and / or in the direction of the drive unit by means of the output shaft ( 14 ) of the drive unit is axially supported or supportable. 14. A combination according to any one of claims 1 to 13, characterized in that the combination of a pointing from the coupling means (12) separate Torsionschwingungsdämpferanordnung (220), which in the driveline between between the Kupplungsein direction (12) and the drive unit is arranged, and that the coupling device ( 12 ) in the direction of the transmission and / or in the direction of the drive unit by means of the torsional vibration damper arrangement ( 220 ) is axially supported or can be supported. 15. Combination according to one of claims 1 to 13, characterized records that the coupling device has an integrated gate Sion vibration damper assembly. 16. Combination according to one of claims 1 to 15, characterized in that the transmission has a transmission housing bell ( 20 ) which defines a receiving space ( 18 ) for the coupling device ( 12 ). 17. Combination according to claim 16, characterized in that the coupling device ( 12 ) in the direction of the gearbox and / and in the direction of the drive unit by means of the gearbox housing bell ( 20 ) is axially supported or can be supported. 18. Combination according to claim 16 or 17, characterized in that the combination has an optionally cover-like closure wall ( 28 ) which has an opening for a torque transmission element associated with an input side of the coupling device, possibly input hub or input shaft ( 34 ), of the coupling device ( 12 ) and in or on the gearbox bell ( 20 ) is mounted or mountable to close the receiving space ( 18 ), and that the coupling device ( 12 ) in the direction of the gearbox and / or in the direction of the drive unit by means of the closure wall ( 28 ) is axially supported or can be supported. 19. Combination according to one of claims 1 to 18, characterized in that an axial support of the coupling device ( 12 ) in the direction of the transmission or / and in the direction of the drive unit by means of an output side ( 80 ) of the first coupling arrangement ( 64 ) or / and an output side ( 84 ) of the second clutch arrangement ( 72 ) is provided on at least one of the transmission input shafts ( 22 , 24 ). 20. Combination according to claim 19, characterized in that an axial support of the coupling device in the direction of the transmission or / and in the direction of the drive unit is provided such that
the output side ( 80 ; 84 ) of the clutch arrangement in question is supported directly or indirectly on the transmission input shaft ( 24 ) assigned to the second clutch arrangement ( 72 ) and / or in the direction of the drive unit directly or indirectly on the transmission input shaft assigned to the first clutch arrangement is, or
the output side of the clutch arrangement in question is supported directly or indirectly on the transmission input shaft assigned to the first clutch arrangement or / and in the direction of the drive unit directly or indirectly on the transmission input shaft ( 22 ; 24 ) assigned to the second clutch arrangement, or
the output side ( 80 ; 84 ) of the clutch arrangement in question ( 64 ; 72 ) in the direction of the transmission and in the direction of the drive unit is supported directly or indirectly on the transmission input shaft ( 22 ; 24 ) assigned to this clutch arrangement. 21. Combination according to one of claims 1 to 20, characterized in that an axial support of the coupling device ( 12 ) in the direction of the gearbox and / or in the direction of the drive unit by means of an input side common to the clutch arrangements, possibly input hub or input shaft ( 34 ) , the coupling device is provided, directly or indirectly on at least one of the transmission input shafts ( 22 , 24 ) and / or on the oil pump drive shaft ( 26 ) and / or on the torsional vibration damper arrangement ( 220 ) and / or on the output shaft ( 14 ) of the drive unit and / or on the closure wall ( 28 ) or / and on the gear housing bell ( 20 ). 22. Combination according to one of claims 1 to 21, characterized in that an axial support of the coupling device in the direction of the gearbox and / or in the direction of the drive unit by means of the input side, possibly a plate carrier ( 62 ), one ( 64 ) of the clutch arrangements ( 64 , 72 ) is provided, specifically directly or indirectly on the closure wall ( 28 ) and / or on the gear housing bell ( 20 ). 23. Combination according to one of claims 1 to 22, characterized in that a rotating clutch housing and / or a white clutch device parts enclosing outer plate carrier ( 62 ) directly or indirectly with the intermediation of only one bearing and / and spring arrangement ( 302 , 304 ) the gear housing bell ( 20 ) is axially supported or can be supported. 24. Combination according to one of claims 1 to 23, characterized in that an entrainment coupling the input side of the one clutch arrangement, possibly the outer disk carrier ( 62 ) of a radially outer one of the coupling arrangements on an input side, possibly input hub or input shaft, of the clutch device Sheet metal ( 60 ) directly or with the intermediation of only one bearing and / or spring arrangement ( 290 , 292 ) is axially supported or can be supported on the closure wall ( 28 ), preferably in the vicinity of or integrated with a sealing and / or bearing arrangement which between the input side ( 34 ) of the coupling device and a wall edge delimiting the opening is effective. 25. Combination according to one of claims 1 to 24, characterized by an elastic device ( 200 ; 202 ';214;222;230; 230 ';252;270;274;290; 302 ), optionally a spring arrangement ( 200 ; 214 ; 222 ; 230 ; 230 ';252;270;274;290; 302 ), which is intended to apply elastic prestressing or restoring forces in the axial direction to the coupling device as a whole or at least one component of the coupling device in order to position it axially or / and to preload the coupling device against a transmission-side support arrangement, possibly at least one of the transmission input shafts ( 22 , 24 ). 26. Combination according to one of claims 1 to 25, characterized in that at least one of the structural unit ( 12 ) associated component ( 80 ; 84 ; 34 ) of the coupling device ( 12 ), which provides radial support for the coupling device as a whole or at least for an output side of one of the clutch arrangements on a transmission-side rotary shaft ( 22 ; 24 ; 26 ), and / or establish a rotary connection with this rotary shaft ( 22 ; 24 ; 26 ), when the coupling device is mounted on the rotary shaft ( 22 ; 24 ; 26 ) can be slid on and, after being slid on the rotary shaft, is supported or can be supported in one or both axial directions, preferably is supported or can be supported elastically, without disassembly of one or more components of the structural unit being necessary. 27. Combination according to claim 26, characterized in that between the component ( 80 ; 84 ) of the coupling device and the rotary shaft ( 22 ; 24 ) a snap-in or snap-in connection is producible, which the axial support and, if necessary, an elastic pre-tension in axial Direction conveyed. 28. A combination according to claim 27, characterized in that at least one coupling member ( 230 ; 230 '; 252 ), which is separate from the component and the rotary shaft, is provided for producing the latching or snap-in connection, which, after being pushed on, simultaneously in axially limited recesses Component ( 80 ; 84 ) and the rotary shaft ( 22 ; 24 ) engages and to enable the slide on in an associated recess ( 234 ; 250 ) of the component or the rotary shaft ( 22 ; 24 ) is immersed. 29. Combination according to claim 28, characterized in that the component ( 80 ; 84 ) or the rotary shaft has at least one ramp inclined surface ( 228 ), which acts on the coupling member ( 230 ; 230 '; 252 ) and slides it into place , 30. Combination according to claim 28 or 29, characterized in that the coupling member is formed by a coupling bracket or coupling ring ( 230 ; 230 '; 252 ) which extends at least around part of the circumference of the rotary shaft. 31. Combination according to claim 30, characterized in that the coupling member is designed in the manner of a snap ring ( 230 '). 32. Combination according to claim 30, characterized in that the coupling member is formed by a wire ring or wire bracket ( 230 ) which has several curved sections with opposing bending direction or / and several grazing, preferably at least approximately tangentially to a circumference of the component or / and a circumference of the rotary shaft extending portions. 33. Combination according to claim 26, characterized by a support arrangement ( 264 , 270 ; 274 , 276 ) which can be mounted after the component ( 34 ) has been pushed onto the rotary shaft ( 26 ) in association with the component ( 34 ) and the rotary shaft ( 26 ) the axial support of the component ( 34 ) on the rotary shaft ( 26 ) mediates in at least one axial direction. 34. Combination according to claim 33, characterized in that the support arrangement engages on the one hand on the component ( 34 ) and on the other hand on the rotary shaft ( 26 ) or an attached holding member, if necessary snap ring ( 264 ; 276 ), elastic or spring arrangement ( 270 ; 272 ). 35. Combination according to claim 34, characterized in that the spring arrangement comprises at least one spring ring ( 270 ; 272 ). 36. Combination according to one of claims 26 to 35, characterized in that the rotary shaft is / the radially outer transmission input shaft ( 24 ) of the radially nested transmission input shafts ( 22 , 24 ) and that the component is a coupling hub ( 84 ) assigned to this transmission input shaft. is the output side of the clutch arrangement ( 72 ) assigned to this transmission input shaft. 37. Combination according to one of claims 26 to 35, characterized in that the rotary shaft is / the radially inner transmission input shaft ( 22 ) of the radially nested transmission input shafts ( 22 , 24 ) and that the component is a coupling hub ( 80 ) assigned to this transmission input shaft. is the output side of the clutch arrangement ( 64 ) assigned to this transmission input shaft. 38. Combination according to one of claims 28 to 35, characterized in that the rotary shaft is / the oil pump drive shaft ( 26 ) extending radially in the radially nested transmission input shafts ( 22 , 24 ) and that the component is an input hub or input shaft ( 34 ) of the coupling device ( 12 ), which is assigned to the input sides ( 62 , 70 ) of both coupling arrangements ( 64 , 72 ) and for direct or indirect coupling, possibly via a / the torsional vibration damper arrangement ( 220 ), the output shaft ( 14 ) the drive unit serves: 39. Combination according to one of claims 33 to 38, characterized in that a sealing or closure arrangement ( 180 ; 202 ';266; 278 , 280 ; 266 , 267 ) is provided which ensures an oil flow away between the oil pump drive shaft and seals or closes the input hub or input shaft ( 34 ) in the direction of the drive unit. 40. Combination according to 33 and 39, characterized in that the sealing or closure arrangement ( 180 ; 202 ';266;278;280; 266 , 267 ) can be installed in the course of the assembly of the support arrangement and / or at least partially by the support arrangement ( 202 ') is formed. 41. Combination according to one of claims 26 to 40, characterized in that one / the component ( 80 ) can be pushed onto a rotating shaft ( 22 ) extending through at least one other rotating shaft ( 24 ) designed as a hollow shaft and on this rotating shaft ( 22 ) can be supported in the direction of the gear unit, and that one end of the other rotary shaft ( 24 ) on the drive unit end has axial movement or / and linear expansion play in the direction of the drive unit. 42. Combination according to claim 41, characterized in that between the component ( 80 ) and the rotary shaft ( 22 ) effective switching element ( 206 ) is provided, which mediates the support in Rich direction to the transmission. 43. Combination according to claim 42, characterized in that the switching member ( 206 ) is a ring or bracket element which engages on the one hand in a groove of the rotary shaft or the component or can be brought into engagement with it and on the other hand against an impact ring surface the component or the rotary shaft abuts or can be brought into abutment or the abutment ring surface of the rotary shaft ( 22 ) and the component ( 80 ) abuts on both sides or can be brought into abutment. 44. Component according to claim 43, characterized in that the ring or bracket element ( 206 ) can be pushed axially onto the rotary shaft. 45. Component according to claim 43 or 44, characterized in that the ring or bracket element ( 206 ) is made of round wire or / and that the groove or / and the stop ring surface or at least one of the stop ring surfaces corresponding to a cross section of the Ring or bracket element are rounded. 46. Combination according to one of claims 1 to 45, characterized in that between a coupling end ( 16 ) of an output shaft ( 14 ) of the drive unit and an input side, possibly an input hub or input shaft ( 34 ), of the coupling device ( 12 ) effective, preferably elastic axial support arrangement ( 200 ; 202 ; 202 ') is provided, which is radially secured or can be secured at the coupling end and / or on the input side ( 34 ) and at least has a spherical or spherical contact surface which is on an associated counter-contact surface of the coupling end ( 16 ) or the input side is in contact or can be brought into contact. 47. Combination according to claim 46, characterized in that the counter-contact surface axially delimits a central axial recess of the coupling end ( 16 ) or the input side. 48. Combination according to claim 46 or 47, characterized in that that the counter contact surface is spherical or conical. 49. Combination according to one of claims 46 to 48, characterized in that the contact surface and the counter-contact surface with respect to an axis of rotation (A) of the input side ( 34 ) or the output shaft ( 16 ) are each essentially rotationally symmetrical. 50. Combination according to one of claims 46 to 49, characterized in that the axial support arrangement comprises an at least partially spherical or spherical support element ( 202 ; 202 ') and, if necessary, a separate spring or elastic arrangement ( 200 ), possibly comprising comprises at least one plate spring or at least one plate spring package ( 200 ). 51. Combination according to claim 50, characterized in that the support element ( 202 ') is axially elastic or resilient. 52. Combination according to claim 50 or 51, characterized in that the support element ( 202 ') fulfills a sealing function with respect to sealing a wet room and / or oil channel of the coupling device ( 12 ) in the direction of the drive unit. 53. Combination according to one of claims 1 to 52, characterized in that the input side, possibly input hub or input shaft ( 34 ), the coupling device by means of a Federanord voltage ( 214 ; 222 ) on an output side ( 220 ) of a / the torsion Vibration damper arrangement or one coupled to a / the output shaft ( 14 ) of the drive unit, torque transmission member ( 210 ) is axially supported or can be supported. 54. Combination according to claim 53, characterized in that the input side, on the one hand, and the output side ( 220 ) or the torque transmission member ( 210 ), on the other hand, are or can be brought into engagement by means of entrainment information, possibly forming a spline. 55. Motor vehicle drive train, constructed from a combination any of the preceding claims. 56. Multiple clutch device, possibly double clutch device ( 12 ), for the arrangement in a motor vehicle drive train between a drive unit and a transmission, the clutch device being assigned to a first transmission input shaft ( 22 ) of the transmission first clutch arrangement ( 64 ) and a second clutch input shaft ( 24 ) associated with the transmission second clutch arrangement ( 22 ) for torque transmission between the drive unit and the gear, characterized in that the clutch device ( 12 ) is in the form of a prefabricated unit and as a finished unit ( 12 ) between the drive unit and the gear unit can be assembled and axially supported by axial support without one or more parts of the assembly having to be disassembled in the course of the assembly process, at least one separate axial support device being provided with respect to the assembly and / or at least one Component of the unit is designed with an axial support device which conveys an axial support for the unit in the direction of the gearbox and / or in the direction of the drive unit, the separate axial support device being at least partially preassembled on the gearbox side and / or drive unit side or / and if necessary at least partially can be retrofitted relative to the unit on the transmission side and / or on the drive side. 57. Coupling device according to claim 56, characterized by itself features relating to the coupling device at least one of claims 1 to 54. 58. Set of a coupling device according to claim 56 or 57 and at least one associated, opposite the coupling device If necessary, separate axial support device for mounting the Double clutch in a motor vehicle drive train, the Axial support device is designed to engage the clutch at least according to the relevant information to axially support one of claims 1 to 54 in the drive train.