Abstract:
The invention relates to a hydrodynamic torque converter device for an automotive drive train, comprising a torsional vibration damper and a converter torus which is configured by an impeller, a turbine wheel and a stator. The torsional vibration damper has a first energy accumulating device with one ore more first energy accumulators, and a second energy accumulating device with one ore more second energy accumulators, which is connected in series to the first energy accumulating device.

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
       [0001]    This application is the National Stage of PCT International Application No. PCT/DE2006/001820, filed Oct. 16, 2006, which application published in German and is hereby incorporated by reference in its entirety, which application claims priority from German Patent Application No. DE 10 2005 053 611.5, filed Nov. 10, 2005 which is incorporated by reference in its entirety. 
     
    
     FIELD OF THE INVENTION 
       [0002]    The invention relates to a hydrodynamic torque converter device for an automotive drive train, comprising a torsion vibration damper and a converter torus which is formed by a pump shell, a turbine shell and a stator shell. 
       BACKGROUND OF THE INVENTION 
       [0003]    FIG. 3 of German Patent No. DE 196 14 411 A1 shows a hydrodynamic torque converter device for a motor vehicle drive train, which comprises a torsion vibration damper and a converter torus, which is formed by a pump shell, a turbine shell, and a stator shell. The torsion vibration damper included therein comprises exactly one energy accumulator means, which is disposed between an input component and an output component. The output component is non-rotatably connected to a hub, which in turn is non-rotatably connected to a shaft. The input component is connected to the piston of a torque converter lockup clutch, so that the energy accumulator means can be loaded by the converter housing through the input component when the converter lockup clutch is closed. The input component is furthermore coupled to the outer turbine shell of the converter torus by a rivet joint. This is provided so that the outer turbine shell comprises an outward facing embossing in the portion where it defines the torus interior or the torus cavity, wherein a rivet is disposed in the embossing, which creates a non-rotatable connection to the input component of the outer turbine dish through respective openings of the outer turbine dish and of the input component. 
         [0004]    FIG. 1 of German Patent No. DE 199 20 542 A1 shows a hydrodynamic torque converter device for a motor vehicle drive train, in which the torsion vibration damper comprises two energy accumulator means. Therein, a driver component is welded to the outside of the outer turbine dish in the portion, which defines the interior of the torus, wherein the driver component is connected to the input component of an outer damper or of an outer energy accumulator means by a push-in connection. The output component of the outer energy accumulator means is coupled again to the piston of a converter lockup clutch and simultaneously forms the input component of the inner energy accumulator means, whose output component is connected to a hub. 
         [0005]    Another hydrodynamic torque converter device for a motor vehicle drive train, in which the torsion vibration damper comprises two energy accumulator means is shown in FIG. 1 of German Patent No. DE 103 58 901 A1. In this configuration the input component of the outer energy accumulator means is coupled with a converter lockup clutch. An intermediary component simultaneously forms the output component of the outer energy accumulator means and the input component of the inner energy accumulator means, which is connected to a hub through its output component. At this hub, a protrusion of the outer turbine dish is supported in radial direction. At the outside of the outer turbine dish, a driver component is welded on in the portion, in which the outer turbine dish defines the torus interior, wherein the driver component is on the other hand coupled to the intermediary component by means of a connection means configured as a bolt connection. 
       BRIEF SUMMARY OF THE INVENTION 
       [0006]    The present invention is a hydrodynamic torque converter device for a motor vehicle drive train, which comprises a torsion vibration damper and a converter torus, formed by a pump shell, a turbine shell, and a stator shell. It is appreciated with this regard, that a means designated as “converter torus” in this publication is sometimes designated as “hydrodynamic torque converter” in previous publications. The term “hydrodynamic torque converter” is, however, also used for devices in previous publications, which comprise a torsion vibration damper, possibly a converter lockup clutch and a means formed by a pump shell, a turbine shell, and a stator shell, or according to the present disclosure, comprise a converter torus. In consideration of this background, the terms “hydrodynamic torque converter device” and “converter torus” are used for purposes of clarity. 
         [0007]    The torsion vibration damper comprises a first energy accumulator means, comprising one or several first energy accumulators, and a second energy accumulator means comprising one or several second energy accumulators. The first energy accumulator means is connected in series to the second energy accumulator means, wherein between the two energy accumulator means a first component is provided, which is also connected in series. The converter torus in its typical shape comprises a torus interior, or a torus cavity, which is provided substantially torus-shaped or annular. An outer turbine shell forms a wall section, directly abutting to the interior of the torus in order to define the torus. 
         [0008]    The outer turbine dish is connected to the first component, so that a load, like a torque or a force, can be transferred from the outer turbine dish to the first component, wherein at least one connection means is provided along the load transfer path, formed therewith, through which the load or the torque can be transferred from the outer turbine dish to the first component, by which connection means in particular abutting components for torque or load transfer are connected amongst each other. Such a connection means can, e.g., be a rivet joint, a bolt joint, a threaded joint, a weld, a plug-in connection, or the like. 
         [0009]    It is provided that all connection means, by which in particular abutting components are connected along a load transfer path between the outer turbine shell and the first component, are offset from the wall section of the outer turbine shell directly abutting to the torus interior or the torus cavity, defining the torus cavity. It can be provided, in particular, that turbine blades are provided, which are arranged in the interior of the torus, or in the torus cavity in a known manner. The connection means are advantageously disposed offset from the sections of the outer turbine dish, where the turbine blades abut to the outer turbine dish, or where they are integrally formed. 
         [0010]    It is provided that the power transfer path between the outer turbine shell and the first component is free from the first and the second energy accumulator means, so that a torque or a load can be transferred along this load transfer path from the outer turbine dish to the first component, without being transmitted by or through one of the energy accumulator means, before the torque or the load reaches the first component. 
         [0011]    It can be provided that along the load transfer path exactly one connection means is provided for connecting abutting components of the load transfer path. This can be performed so that the outer turbine shell, which is configured in particular in one piece, comprises an extension, which adjoins to the wall section, which is provided for defining the interior of the torus, wherein the protrusion extends to the second component and is connected therewith in the location. However, it can also be provided that exactly two connection means are provided in the load transfer path. This can be provided so that an extension of the outer turbine dish is provided, which adjoins to the wall section of the turbine dish, which is provided for defining the torus interior, wherein the extension is integrally connected to the wall section, or made in one piece, and connected to a driver component like a plate or similar by a first connection means. The driver component can thus be connected to the second component by a second connection means. More than two connection means can also be provided in the load transfer path. 
         [0012]    It can be provided that the first energy accumulator means comprises several first energy accumulator means, which are circumferentially distributed and disposed at a distance relative to one another with reference to the circumferential direction of a rotation axis, about which the torsion vibration damper is advantageously rotatable, and/or that the second energy accumulator means comprises several circumferentially distributed or offset second energy accumulators. Thus, the energy accumulators do not have to be disposed on an exactly circumferential path. It can be provided that the first energy accumulators of the first energy accumulator means are respective arc springs, and the second energy accumulators of the second energy accumulator means are respective straight springs or straight compression springs. In an advantageous manner, the first energy accumulators of the first energy accumulator means and also the second energy accumulators of the second energy accumulator means are respective spiral springs. 
         [0013]    In a preferred embodiment, the torque converter device furthermore comprises a converter lockup clutch. It can be provided that the converter lockup clutch is connected to a converter housing on the input side and connected on the output side directly or through one or several interconnected components to a second component, so that a torque can be transferred from the converter housing through the converter lockup clutch to the second component, when the converter lockup clutch is closed. The second component can be the input component of the first energy accumulator means. In another preferred embodiment, it is provided that the second energy accumulator means is disposed connected in series between the first component and the third component. The third component can form a hub or can be non-rotatably connected with a hub. Such a hub can be non-rotatably coupled with a shaft, like a transmission input shaft or similar. It is thus preferred, in particular, that in the following sequence: a second component, the first energy accumulator means, a first component, the second energy accumulator means, and a third component, are connected in series. It can be provided that the series connection is exclusively comprised of the components, or that one or several parallel or interconnected components are provided. 
         [0014]    According to a particularly advantageous embodiment, it is provided that the outer turbine dish is disposed pivotable or rotatable relative to the hub. In particular, in such an embodiment it can be provided that the outer turbine dish is preferably supported by a sleeve-shaped support section in radial direction at the hub. The support can thus be performed, so that substantially no torque is transferred from the outer turbine dish to the hub. Thus, it is provided in particular that a torque can be transferred from the outer turbine shell to the hub substantially through the second energy accumulator means, not, however, through an additionally provided radial support from the outer turbine dish to the hub. It can be provided that an additional support means, like a straight bearing bushing or a roller bearing or similar, is provided between the support section and the hub. 
         [0015]    The in particular sleeve-shaped support section can be provided at an extension of the outer turbine dish, or at a driver component or at a separate support component. As discussed, it is provided in a particularly preferred embodiment that the outer turbine dish or a protrusion of the outer turbine dish is connected to the second component by means of a driver component. Thus, it can be provided that the protrusion is connected to the driver component by a first connection means and the driver component is connected to the first component by a second connection means. It can thus also be provided in particular that the driver component comprises an extension, at which the energy accumulator(s) of the first energy accumulator means is (are) supported. 
         [0016]    In a preferred embodiment, the driver component extends from a section disposed in the radially inner portion of the outer turbine dish, or in an extension of the outer turbine dish to the second component. However, it can also be provided that the driver component extends from a radially outer section of the outer turbine dish to the second component. 
         [0017]    In a particularly preferred embodiment, it is provided that the driver component and/or the first component and/or the second component and/or the third component are configured as plates. In particular, in a configuration in which the second component and the driver component are respectively configured as plates, it is advantageously provided that the driver component or the driver plate has greater wall thickness, than the second component. According to a particularly preferred improvement, it is provided that the driver component, in particular with reference to the rotation axis of the torsion vibration damper, comprises a larger mass moment of inertia than the second component. It can also be provided that the mass of the driver component is greater than the mass of the second component. 
         [0018]    It can further be provided that a relative rotation angle limiter or a rotation angle limiter is provided for the torsion vibration damper or for the first and/or the second energy accumulator means, and thus a rotation angle limiter, which goes into an end stop position, before the energy accumulators of the first or second energy accumulator means go into blockage, if they are provided, so that they can go into blockage. Such a rotation angle limiter limits the maximum relative rotation angle between the input component and the output component of the respective energy accumulator means. In an advantageous embodiment, the rotation angle limiter is only provided for the second energy accumulator means, not for the first energy accumulator means. Thus, it can be provided that the first energy accumulators are arc springs and the second energy accumulators are straight (compression) springs. 
         [0019]    It is provided in a particularly preferred embodiment that the driver component is connected or non-rotatably connected to the outer turbine dish or to an extension of the outer turbine dish through first connection means, wherein the connection means are provided in a portion, in which the protrusion or the outer turbine dish and/or the driver component are provided straight, and where it respectively extends in particular straight in radial direction in a particularly preferred embodiment with reference to the radial direction of the rotation axis of the torsion vibration damper. 
         [0020]    It is the object of the invention to provide a torque converter device for a motor vehicle drive train, comprising a torsion vibration damper and a converter torus, formed by a pump shell, a turbine shell, and a stator shell, wherein the torque converter device is easy to manufacture and facilitates the safe reduction and compensation of torque spikes of a combustion engine. 
         [0021]    These and other objects and advantages of the present invention will be readily appreciable from the following description of preferred embodiments of the invention and from the accompanying drawings and claims. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS  
         [0022]    The nature and mode of operation of the present invention will now be more fully described in the following detailed description of the invention taken with the accompanying drawing figures, in which: 
           [0023]      FIG. 1  shows a first embodiment of the present invention hydrodynamic torque converter device; 
           [0024]      FIG. 2  shows a second embodiment of the hydrodynamic torque converter device; 
           [0025]      FIG. 3  shows a third embodiment of the hydrodynamic torque converter device; and, 
           [0026]      FIG. 4  shows a fourth embodiment of the hydrodynamic torque converter device. 
       
    
    
     DETAILED DESCRIPTION OF THE INVENTION  
       [0027]    At the outset, it should be appreciated that like drawing numbers on different drawing views identify identical, or functionally similar, structural elements of the invention. While the present invention is described with respect to what is presently considered to be the preferred aspects, it is to be understood that the invention as claimed is not limited to the disclosed aspects. 
         [0028]    Furthermore, it is understood that this invention is not limited to the particular methodology, materials and modifications described and as such may, of course, vary. It is also understood that the terminology used herein is for the purpose of describing particular aspects only, and is not intended to limit the scope of the present invention, which is limited only by the appended claims. 
         [0029]    Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood to one of ordinary skill in the art to which this invention belongs. Although any methods, devices or materials similar or equivalent to those described herein can be used in the practice or testing of the invention, the preferred methods, devices, and materials are now described. 
         [0030]      FIGS. 1-4  show different embodiments of hydrodynamic torque converter device  1  of the present invention. Hydrodynamic torque converter device  1  is provided for a drive train of a motor vehicle, or forms a component of a motor vehicle drive train, which is indicated schematically by the reference numeral  2 . Hydrodynamic torque converter device  1  comprises torsion vibration damper  10 , converter torus  12 , formed by pump shell  20 , turbine shell  24 , and stator shell  22 , and further comprises converter lockup clutch  14 . 
         [0031]    Torsion vibration damper  10 , converter torus  12 , and converter lockup clutch  14  are received in converter housing  16 . Converter housing  16  is connected substantially non-rotatably to drive shaft  18 , which is, e.g., the crankshaft or engine output shaft of a combustion engine. 
         [0032]    Converter torus  12  comprises a pump or pump shell  20 , stator shell  22 , and turbine or turbine shell  24 , which interact in a known manner. In a known manner, converter torus  12  comprises converter torus interior or torus interior  28 , which is provided for receiving oil, or for oil through flow. Turbine shell  24  comprises outer turbine dish  26 , which forms wall section  30 , directly abutting to torus interior  28 , and provided for defining torus interior  28 . Extension  32  of outer turbine dish  26  adjoins to wall section  30 , directly abutting to torus interior  28 . Extension  32  comprises straight or annular section  34 . Straight or annular section  34  of extension  32  can, e.g., be provided so that it is substantially straight in radial direction of rotation axis  36  of torsion vibration damper  10 , and, in particular, as an annular section, it is located in a plane perpendicular to rotation axis  36 , or it establishes the plane. 
         [0033]    Torsion vibration damper  10  comprises first energy accumulator means  38  and second energy accumulator means  40 . First energy accumulator means  38  and/or second energy accumulator means  40  are, in particular, spring means. 
         [0034]    In the embodiments shown in  FIGS. 1-4 , it is provided that first energy accumulator means  38  comprises a plurality of first energy accumulators  42  like, e.g., coil springs or arc springs, in a circumferential direction extending about rotation axis  36 , which are disposed in particular at a distance from one another. It can be provided that all first energy accumulators  42  are configured identical. It can also be provided that first energy accumulators  42  are provided which are configured differently. 
         [0035]    Second energy accumulator means  40  comprises several second energy accumulators  44 , configured, e.g., respectively as coil springs or straight (compression) springs. Thus, in a preferred embodiment, several second energy accumulators  44  are disposed at a distance to one another with reference to the circumferential direction of rotation axis  36 . It can be provided that second energy accumulators  44  are respectively configured identical. Different second energy accumulators  44 , however, can also be configured differently. 
         [0036]    In the embodiments shown in  FIGS. 1-4 , second energy accumulator means  40  is disposed radially within first energy accumulator means  38  with reference to the radial direction of rotation axis  36 . First energy accumulator means  38  and second energy accumulator means  40  are connected in series. Torsion vibration damper  10  comprises first component  46 , which is disposed between first energy accumulator means  38  and second energy accumulator means  40 , or connected in series with energy accumulator means  38  and  40 . It is thus provided in particular that, e.g., with converter lockup clutch  14  closed, a torque is transferred from first energy accumulator means  38  through first component  46  to second energy accumulator means  40 . First component  46  can also be designated as intermediary component  46 . 
         [0037]    In the embodiments shown in  FIGS. 1-4 , it is provided that outer turbine dish  26  is connected to intermediary component  46  so that a load, in particular, torque and/or force, can be transferred from outer turbine dish  26  to intermediary component  46 . 
         [0038]    Between outer turbine dish  26  and intermediary component  46 , or in the load flow, in particular, torque or force flow between outer turbine dish  26  and intermediary component  46 , driver component  50  is provided. It can also be provided that extension  32  forms intermediary component  46  and/or forms driver component  50 , or takes over their function. It can also be provided that driver component  50  forms a first component or an intermediary component, which is connected in the torque flow between energy accumulator means  38  and  40 , in series. 
         [0039]    It is furthermore provided that along load transfer path  48 , through which a load or a torque can be transferred from outer turbine dish  26  to intermediary component  46 , at least one connection means  52 ,  56  or  54 ,  58  is provided. Such connection means  52 ,  56  or  54 ,  58  can be, e.g., a plug-in connection, as illustrated by reference number  58  in  FIG. 4 , or a rivet joint, or a bolt joint, as illustrated by reference number  56  in  FIGS. 1-3  and reference number  54  in  FIG. 4 , or a weld, as illustrated by reference number  52  in  FIGS. 1-3 , or by other comparable means. It is appreciated that at the location where weld  52  is installed, as shown in  FIG. 3 , an additional rivet or bolt connection  54  is drawn in order to illustrate an alternative embodiment. This is also meant to illustrate that the connection means can also be configured differently, or that they can be combined differently. The respectively adjoining components of the load transfer path through which the load can be transferred from outer turbine dish  26  to intermediary component  46  are coupled among one another by the respective connection means  52 ,  54 ,  56 , and/or  58 . Thus, in the embodiments shown in  FIGS. 1-3 , extension  32  of outer turbine dish  26  is respectively non-rotatably coupled to driver component  50  by connection means  52 , which is configured as a welded connection and which can, alternatively, be a rivet or a bolt connection, as shown in  FIG. 3 , and driver component  50  is non-rotatably connected to intermediary component  46  by respective connection means  56 , which is configured as a rivet connection or as a bolt connection. In the embodiment shown in  FIG. 4 , extension  32  of outer turbine dish  26  is non-rotatably coupled to driver component  50  respectively by connection means  54 , which is configured as rivet or bolt connection, and driver component  50  is non-rotatably coupled to intermediary component  46  respectively by connection means  58 , configured as a plug-in connection. 
         [0040]    It is provided that all connection means  52 ,  54 ,  56 , and  58 , by which components adjoining, for example, extension  32  and driver component  50 , or driver component  50  and intermediary component  46 , along load transfer path  48  between outer turbine dish  26  and intermediary component  46 , are connected and offset from wall section  30  of outer turbine dish  26 , which directly adjoins torus interior  28 . This facilitates, at least according to the embodiments, the increase of the band width of the various connection means. Thus, it is possible, e.g., to not only use thin sheet metal welding or MAG- or laser- or dot welding, but also friction welding, which is not possible in a simple manner, e.g., in a configuration shown in FIG. 3 of German Patent No. DE 196 14 411 A1. Also, the use of bolt- or rivet joints as connection means can be realized more simply in the embodiments shown in  FIGS. 1-4 , than in embodiments of the type shown in FIG. 3 of DE 196 14 411 A1, so that a broader array of suitable connection means is available for selection. In addition, the risk of manufacturing-related, or thermally-related warping in the portion of the turbine blades, which are provided in torus interior  28  in the embodiments shown in  FIGS. 1-4  is further reduced compared to the embodiment shown in FIG. 3 of DE 196 14 411 A1. 
         [0041]    Second component  60  and third component  62  are connected in series with first energy accumulator means  38 , second energy accumulator means  40 , and intermediary component  46 , provided between these two energy accumulator means  38  and  40 . Second component  60  forms an input component of first energy accumulator means  38 , and third component  62  forms an output component of second energy accumulator means  40 . A load or a torque transferred by second component  60  into first energy accumulator means  38  can thus be transferred on the output side of first energy storage means  38  through intermediary component  46  and second energy accumulator means  40  to third component  62 . 
         [0042]    Third component  62  engages hub  64  forming a non-rotatable connection, wherein hub  62 , in turn, is non-rotatably coupled to output shaft  66  of torque converter device  1 , which is, e.g., a transmission input shaft of a motor vehicle transmission. Outer turbine shell  26  is radially supported at hub  64  by means of support section  68 . Support section  68 , which is, in particular, radially supported at hub  64 , is configured substantially sleeve-shaped. 
         [0043]    It is appreciated that the radial support of outer turbine dish  26  by means of support section  68  is performed, so that support forces acting through it upon outer turbine dish  26  are not transferred through first or second energy accumulator means  38  and  40 , respectively, from support section  68  to outer turbine dish  26 . Support section  68  is rotatable relative to hub  64 . It can be provided that, between hub  64  and support section  68 , a straight bearing, a straight bearing bushing, a roller bearing, or a comparable component is provided for radial support. Furthermore, respective bearings can be provided for an axial support. The connection already addressed above between outer turbine dish  26  and intermediary component  46  is configured, so that a torque transferred from outer turbine dish  26  to intermediary component  46  can be transferred from outer turbine dish  26  to intermediary component  46  without having one of energy accumulator means  38  and/or  40  provided along the respective load transfer path  48 . The torque transfer from outer turbine dish  26  to intermediary component  46  through load transfer path  48  can also be performed by a substantially rigid connection. 
         [0044]    In the embodiments shown in  FIG. 1-4 , two respective connection means are provided along the load- or force- or torque transfer path  48  between outer turbine dish  26  and intermediary component  46 , and thus first connection means  52  or  54  and second connection means  56  or  58 . It is appreciated that, with reference to the circumferential direction of rotation axis  36 , several first connection means  52  or second connection means  56  can be disposed, or are preferably disposed distributed in circumferential direction. In the context of this disclosure, however, “first connection means” or “second connection means” is referred to, which literally means one or several first connection means or one or several second connection means. First connection means  52  or  54  non-rotatably connects extension  32  with driver component  50 , and second connection means  56  or  58  non-rotatably connects driver component  50  with intermediary component  46 . In these embodiments, it is provided that first connection means  52  or  54 , with reference to the radial direction of axis  36 , is disposed radially within second connection means  56  or  58 . It is furthermore provided in these embodiments that first connection means  52  or  54  is disposed radially within second energy accumulator means  40 , or radially within second energy accumulators  44  of second energy accumulator means  40 . Second connection means  56  or  58  is disposed relative to the radial direction of axis  36  radially between first energy accumulator means  38  and second energy accumulator means  40 , or first energy accumulators  42  of first energy accumulator means  38  and second energy accumulators  44  of second energy accumulator means  40 . 
         [0045]    While in the embodiments shown in  FIGS. 1-3 , sleeve-shaped support portion  68  is a radially inward section, relative to the radial direction of rotation axis  36  of driver component  50 , separate support component  70  is provided in the embodiment shown in  FIG. 4 , at which, at least with reference to the radial direction of rotation axis  36 , sleeve-shaped support portion  68  is formed on the radial inside. Support portion  70  is non-rotatably connected to extension  32  and driver component  50 . The non-rotatable connection is performed here also by connection means  54 , wherein it is appreciated that separate connection means can also be provided. 
         [0046]    Converter lockup clutch  14  is configured as a multi-disk clutch in the embodiments shown in  FIGS. 1-4 , respectively, and comprises first disk carrier  72 , by which first disks  74  are non-rotatably received, and second disk carrier  76 , by which second disks  78  are non-rotatably received. When multi-disk clutch  14  is open, first disk carrier  72  is movable relative to second disk carrier  76 , so that first disk carrier  72  is rotatable relative to second disk carrier  76 . Second disk carrier  76  is disposed herein, with reference to the radial direction of axis  36 , radially within first disk carrier  72 , however, the opposite can also be the case. 
         [0047]    First disk carrier  72  is connected to converter housing  16  in a rigid manner. Disk clutch  14  comprises piston  80  for actuation, which is disposed axially movable and which can, e.g., be hydraulically loaded for actuating disk clutch  14 . Piston  80  is connected in a rigid or non-rotatable manner to second disk carrier  76 , which can, e.g., be effected by a weld. First disks  74  and second disks  78  alternate when viewed in longitudinal direction of rotation axis  36 . When loading disk packet  79 , formed by first disks  74  and second disks  78  by means of piston  80 , disk packet  79  is supported on the side of disk packet  79 , which is opposed to piston  80 , at a section of the inside of converter housing  16 . Between adjacent disks  74  and  78 , and on both the ends of disk packet  79 , friction liners  81  are provided, which are supported, e.g., at disks  74  and/or  78 . Friction liners  81 , which are provided at the ends of disk packet  79 , can also be supported at one side and/or at the other side at the inside of converter housing  16  or at piston  80 . 
         [0048]    In the embodiments shown in  FIGS. 1 ,  2 , and  4 , piston  80  is configured integrally with second component  60 , thus the input component of first energy accumulator means  38 . In the embodiment shown in  FIG. 3 , piston  80  is non-rotatably connected or connected in a rigid manner, to second component  60  or the input component of first energy accumulator means  38 , wherein the rigid connection is performed here, e.g., by a weld joint in this location. As a matter of principle, a non-rotatable connection can also be performed in another manner. In the embodiments shown in  FIGS. 1 ,  2 , and  4 , piston  80  and input component  60  can also be configured in an alternative embodiment of the first accumulator means as separate components, which are connected amongst each other, e.g., by a weld joint, or by a rivet or a bolt in a rigid or non-rotatable manner. In the embodiment shown in  FIG. 3 , in order to create the rigid or non-rotatable connection, instead of the weld joint, another suitable connection between piston  80  and input component  60  can be provided, like, e.g., a bolt or a rivet connection, or a plug-in connection, or, alternatively, piston  80  with input component  60  can also be produced integrally in one piece. 
         [0049]    Piston  80  or second component  60 , first component  46 , or intermediary component  46 , third component  62  and driver component  50  are formed by plates, respectively. Additionally, in the embodiment shown in  FIG. 4 , support component  70  can be formed by a plate. Second component  60  is a flange, in particular. First component  46  is a flange, in particular. Third component  62  is a flange, in particular. 
         [0050]    In the embodiments shown in  FIGS. 1-3 , the mass moment of inertia of driver component  50  is greater than the mass moment of inertia of piston  80  or of input component  60  of first energy accumulator means  38 , or of the unit comprised of components  60  and  80 . In the embodiment shown in  FIG. 2 , the plate thickness of driver component  50  is greater than the plate thickness of piston  80  or of input component  60  of first energy accumulator means  38 . 
         [0051]    It is appreciated that the vibration properties in the embodiment shown in  FIG. 4  are worse than in the embodiments shown in  FIGS. 1-3 . In the embodiment shown in  FIG. 2 , the vibration properties of device  1  are particularly good. 
         [0052]    For first energy accumulators  42 , a type of housing  82  is respectively formed, which extends at least partially on both sides axially and radially on the outside about the respective first energy accumulator  42  with reference to the radial direction and the axial direction of rotation axis  36 . In the embodiments shown in  FIGS. 1-3 , housing  82  is disposed at driver component  50 , while it is disposed at piston  80  in the embodiment according shown in  FIG. 4 . In most applications, the non-rotatable disposition at driver component  50  or at outer turbine dish  26  is advantageous from a vibration point of view, since hereby more mass moment of inertia is moved to the secondary side of first energy accumulator means  38 . 
         [0053]    In the embodiment shown in  FIG. 3 , first energy accumulators  42  can be supported by a respective means  84 , which can also be called a roller shoe, comprising roller bodies like balls or rollers, at housing  82 , in order to reduce friction. Though this is not shown in  FIGS. 1 ,  2  and  4 , such means  84 , comprising roller bodies like balls or rollers for supporting first energy accumulator  42  and for reducing friction, can also be provided accordingly in the embodiments shown in  FIGS. 1 ,  2 , and  4 . According to  FIGS. 1 ,  2  and  4 , however, a slider shell or a slider shoe is provided instead of such roller shoe  84  for low friction support of first energy accumulators  42 . 
         [0054]    Furthermore, second rotation angle limiter means  92  for second energy accumulator means  40  is provided in the embodiments shown in  FIGS. 1-3 , and may be provided in the embodiment shown in  FIG. 4 , by means of which the maximum rotation angle or the relative rotation angle of second energy accumulator means  40 , or of the input component of second energy accumulator means  40  is limited relative to the output component of second energy accumulator means  40 . This is performed here so that the maximum rotation angle of second accumulator means  40  is limited by second rotation angle limiter means  92 , so that it is prevented that second energy accumulators  44 , which are springs, in particular, go into blockage under a respectively high torque loading. Second rotation angle limiter device  92  is configured, e.g., as shown in  FIGS. 1-3 , so that driver component  50  and intermediary component  46  are non-rotatably connected by a bolt, which is, in particular, a component of connection means  56 , wherein the bolt extends through a slotted hole, which is provided in the output component of second energy accumulator means, or in third component  62 . A first rotation angle limiter means for first energy accumulator means  38  can also be provided, which is not shown in the figures, by means of which the maximum rotation angle of first energy accumulator means  38  is limited, so that a blockage loading of first energy accumulators  42 , which are, in particular, respectively provided as springs, is avoided. In a preferred embodiment, second energy accumulators  44  are straight (compression) springs and first energy accumulators  42  are arc springs, and it can be provided that only a second rotation angle limiter means is provided for second energy accumulator means  40 , as illustrated in  FIGS. 1-3 , since in such embodiments, and in case of going into blockage, the risk of damages is smaller with arc springs, than with straight springs, and an additional first rotation angle limiter means would increase the number of components or the manufacturing cost. 
         [0055]    In a particularly advantageous embodiment, it is provided in the embodiments shown in  FIGS. 1-4  that the rotation angle of first energy accumulator means  38  is limited to a maximum first rotation angle, and the rotation angle of second energy accumulator means  40  is limited to a maximum second rotation angle, wherein first energy accumulator means  38  reaches its maximum first rotation angle when a first threshold torque is applied to first energy accumulator means  38 , and wherein second energy accumulator means  40  reaches its maximum second rotation angle when a second threshold torque is applied to second energy accumulator means  40 , wherein the first threshold torque is smaller than the second threshold torque. This can be accomplished, in particular, by a respective setting of energy accumulator means  38  and  40  or of energy accumulators  42  and  44  of energy accumulator means  38  and  40 , possibly, or by the first and/or the second rotation angle limiter means. 
         [0056]    It can be provided, that first energy accumulators  42  go into blockage at the first threshold torque, so that first energy accumulator means  38  reaches its maximum first rotation angle, and it is accomplished by means of the second rotation angle limiter means for second energy accumulator means  40  that second energy accumulator means  40  reaches its maximum second rotation angle at a second threshold moment, wherein the maximum second rotation angle is reached, when the second rotation angle limiter means reaches a stop position. This way, in particular, a good setting for partial load operation can be accomplished. 
         [0057]    It is appreciated that the rotation angle of first energy accumulator means  38 , or of second energy accumulator means  40 , and the same applies for the maximum first or maximum second rotation angle, are the relative rotation angles with reference to the circumferential direction of rotation axis  36  of torsion vibration damper  10 , which is present relative to the unloaded resting position between torque transfer components directly adjacent to the respective energy accumulator means  38  or  40  on the input side and output side. The rotation angle, which is limited in the manner by the respective maximum first or second rotation angle, can change by energy accumulators  42  or  44  of the respective energy accumulator means  38  or  40  absorbing energy, or releasing stored energy. 
         [0058]    In the embodiments shown in  FIGS. 1-3 , piston  80 , the second component, or input component  60  of first energy accumulator means  38 , forms several ears  86  distributed over the circumference, each comprising non-free end  88  and free end  90 , which are provided for face side, input side loading of a respective first energy accumulator  42 . Non-free end  88  is thus disposed radially within free end  90  of the respective ear  86  with reference to the radial direction of rotation axis  36 . 
         [0059]    In the embodiments shown in  FIGS. 1-4 , the radial extension of driver component  50  is greater than the center radial distance of first energy accumulator(s)  42  from second energy accumulator(s)  44  with reference to the radial direction of axis  36  of torsion vibration damper  10 . 
         [0060]    Thus, it is seen that the objects of the present invention are efficiently obtained, although modifications and changes to the invention should be readily apparent to those having ordinary skill in the art, which modifications are intended to be within the spirit and scope of the invention as claimed. It also is understood that the foregoing description is illustrative of the present invention and should not be considered as limiting. Therefore, other embodiments of the present invention are possible without departing from the spirit and scope of the present invention. 
       DESIGNATIONS 
       [0000]    
       
           1  hydrodynamic torque converter device 
           2  motor vehicle drive train 
           10  torsion vibration damper 
           12  converter torus 
           14  converter lockup clutch 
           16  converter housing 
           18  drive shaft, like e.g. engine output shaft of a combustion engine 
           20  pump or pump shell 
           22  stator shell 
           24  turbine or turbine shell 
           26  outer turbine shell 
           28  torus interior 
           30  wall section of  26   
           32  extension at  30  of  26   
           34  straight section of  32 , or annular disk shaped section of  32   
           36  rotation axis of  10   
           38  first energy accumulator means 
           40  second energy accumulator means 
           42  first energy accumulator 
           44  second energy accumulator 
           46  first component of  10   
           48  load transfer path 
           50  driver component 
           52  connection means or weld connection between  32  and  50  in  48   
           54  connection means or bolt or rivet joint between  32  and  50  in  48   
           56  connection means or bolt or rivet joint between  50  and  46  in  48   
           58  connection means or plug-in connection between  50  and  46  in  48   
           60  second component 
           62  third component 
           64  hub 
           66  output shaft, transmission input shaft 
           68  support section 
           70  support component 
           72  first disk carrier of  14   
           74  first disk of  14   
           76  second disk carrier of  14   
           78  second disk of  14   
           79  disk packet of  14   
           80  actuation piston of  14   
           81  friction liner of  14   
           82  housing 
           84  roller shoe 
           86  ear 
           88  non-free end of  82   
           90  free end of  82   
           92  second rotation angle limiter means  92  of  40   
           94  slider shoe