• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a vibration damping system for a motor vehicle transmission comprising: - a support member (1) adapted to be rotated about an axis X and having a plurality of external raceways (16 ); and a plurality of pendulum weights (2) circumferentially distributed around the X axis; each of the pendulum weights (2) being mounted oscillating relative to the support member (1) by means of two rolling bodies (12, 13) which cooperate respectively with one and the other of the two inner raceways (14, 15) of said pendulum weight (2) and each cooperate with one of the outer raceways (16) of the support member (1); - The outer raceways (16) are juxtaposed one after the other continuously around the axis X so that the rolling bodies (12, 13) are each able to freely pass a first raceway external (16) to a second outer race (16).
    公开号:FR3027362A1
    申请号:FR1459983
    申请日:2014-10-17
    公开日:2016-04-22
    发明作者:Roel Verhoog；Giovanni Grieco
    申请人:Valeo Embrayages SAS；
    IPC主号:
    专利说明:

    [0001] TECHNICAL FIELD The invention relates to the field of vibration damping systems of the pendulum oscillator type intended to equip motor vehicle transmissions.
    [0002] STATE OF THE ART An explosion engine exhibits acyclisms due to successive explosions in the cylinders of the engine, the frequency of the acyclisms varying in particular as a function of the number of cylinders and the speed of rotation of the engine. A damping system has the function of filtering the vibrations generated by the acyclisms upstream of the gearbox. Otherwise, vibrations entering the gearbox would cause in operation shocks, noises or noise particularly undesirable. Pendulum-type damping systems, also known as pendulum oscillators or pendulums, fitted to motor vehicle transmissions, are known in the state of the art. Such a pendulum oscillator damping system is, for example, described in document FR2989753. The damping system comprises a support member and a plurality of pendulum weights mounted oscillating relative to the support member. Each pendulum weight is mounted oscillating relative to the support member by means of two rolling bodies which each cooperate, on the one hand, with an inner raceway carried by said pendulum weight and, on the other hand, with a outer raceway, vis-à-vis said inner raceway, carried by the support member. In such a damping system, the outer races are formed in orifices in the support member so that the angular displacement of the counterweights relative to the support member is necessarily limited. Thus, under certain operating conditions, and especially during engine start, the amplitude of the vibrations 30 is such that the pendulum oscillator is saturated and the pendulum weights abut against the support member. Such operating conditions cause each time shocks between the pendulum weights and the support member. In order to limit the noise nuisance for such operating conditions, the support member and / or the pendulum weights are equipped with elastomer abutment elements limiting the movement of the pendulum weights relative to the support member. However, such elastomeric abutment members are subjected to high temperatures and a large number of shocks. Such elastomeric abutment elements therefore lead to a limitation of the service life of the damping system and to an increase in the cost and complexity of the system. OBJECT OF THE INVENTION An idea underlying the invention is to provide a simple, economical and effective solution to these problems. According to one embodiment, the invention provides a vibration damping system for a motor vehicle transmission comprising: a support member adapted to be rotated about an X axis and comprising a plurality of tracks external turnover; and a plurality of pendulum weights circumferentially distributed about the X axis and each having two internal raceways, radially-inwardly relative to the outer raceways; each of the pendulum weights being mounted oscillating relative to the support member by means of two rolling bodies which cooperate respectively with one and the other of the two inner raceways of said pendulum weight and each cooperate with the one of the outer bearing tracks of the support member for guiding the oscillation movement of said pendulum weight with respect to said support member; Said damping system being remarkable in that the outer rolling tracks are juxtaposed one after the other continuously around the X axis so that each rolling body is able to freely pass from a first outer raceway to a second outer raceway, adjacent to said first outer raceway, when the counterweights are biased by vibrations of such magnitude that each rolling body of said counterweights is moved beyond one end of said first outer raceway.
    [0003] Thus, if the deflection of the pendulum weights exceeds the clearance caused by the guiding of the rolling bodies on the first associated external rolling tracks, the rolling bodies of the pendulum weights pass freely to adjacent outer raceways so that the movement of the flyweights pendulum relative to the support member is not limited and it is no longer necessary to provide elastomeric material abutment elements, complex and expensive, to limit noise when the pendulum oscillator is subject to to vibrations whose amplitude leads to its saturation.
    [0004] According to other advantageous embodiments, such a damping system may have one or more of the following characteristics: the two rolling bodies associated with each pendulum weight are retained by the associated pendulum. the rolling elements are cylindrical rollers which each comprise at least one end equipped with an axially projecting pin and each counterweight comprises at least one flange axially bordering the inner raceways of said pendulum weight which is equipped with two grooves each receiving one of said pawns. the cylindrical rollers comprise two ends equipped with an axially projecting pin and each counterweight comprises two flanges disposed on either side of the inner raceways of said pendulum weight which are each equipped with two grooves each receiving one of said pions. a functional clearance is provided between each pin and the edges of the groove in which said pin is received, said functional clearance being arranged in such a way that the pin does not touch the edges of the groove when the cylindrical roller equipped with said pin cooperates with the internal raceway and outer raceway. the grooves have an arcuate shape whose concavity is directed radially inwards. the support member comprises an outer ring and an inner ring concentric and coaxial with the axis X between which radially extend the pendulum weights and the outer raceways are formed in an inner surface of the outer ring. the inner ring is covered with a ring of elastomeric material so as to damp the fall of the pendulum weights when pendulum weights are no longer subjected to centrifugal force. the support member further comprises two disks extending axially on both sides of the inner and outer rings. the damping system comprises axial holding members which are fixed to the pendulum weights and which are arranged on either side of said pendulum weights, each axial holding member being interposed between one of said pendulum weights and one of disks of the support member in order to axially center the counterweights relative to the support member. at least one of the circumferential ends opposite two adjacent pendulum weights is equipped with an elastomeric abutment element. the pendulum weights each comprise two circumferential ends equipped with an elastomer abutment element. the support member has as many or more external raceways as the damping system has rolling bodies. the support member comprises three or four external rolling tracks per counterweight. the outer races have an outwardly directed concavity and the inner raceways have an inward concavity. the angular sum of the intervals between the pendulum weights is less than the angular distance of an outer raceway. According to one embodiment, the invention also provides a motor vehicle comprising a damping system mentioned above. The invention will be better understood, and other objects, details, features and advantages thereof will become more clearly apparent in the following description of several particular embodiments of the invention, given solely for illustrative purposes and not limiting, with reference to the appended figures. In these figures: Figure 1 is an exploded view, in perspective, of a vibration damping system in which a single pendulum flyweight is shown. Figure 2 is a front view of a damping system according to Figure 1 showing the pendulum weights in a central position, when subjected to the centrifugal force. Figure 3 is a view of the damping system of Figure 2 in section according to Figure 4 is a view of the damping system of Figure 2 in section o in the plane IV-IV. FIG. 5 is a front view of the damping system of FIG. 2 in a centrifuged position, one of the lateral flanges of one of the pendulum weights not having been shown in order to allow observation of the tracks of internal bearings carried by said counterweight. Figures 6 and 7 are front views of the damping system representing the pendulum weights when the engine is stopped and thus the pendulum weights are no longer subjected to centrifugal force. Figure 8 is a front view of the damping system schematically illustrating three successive positions of the same pendulum in relation to the support member. DETAILED DESCRIPTION OF EMBODIMENTS In the description and the claims, the terms "external" and "internal" as well as the "axial" and "radial" orientations will be used to designate, according to the definitions given in the description, elements of the damping system. By convention, the "radial" orientation is directed orthogonal to the X axis of rotation of the damping system determining the "axial" orientation and, from the inside towards the outside away from said axis, the "Circumferential" orientation is directed orthogonally to the axis of the damping system and orthogonal to the radial direction. The terms "external" and "internal" are used to define the relative position of one element relative to another, with reference to the X axis of rotation of the damping system, an element close to the axis is thus described as internal as opposed to an external element located radially periphery. The vibration damping system is intended to be arranged in the transmission chain of a motor vehicle, between the internal combustion engine and the gearbox. It can in particular be integrated with a flywheel, a double damping flywheel, a clutch mechanism, a coupling clutch of a hydraulic coupling device or a clutch friction. With reference to FIG. 1, it can be seen that the damping system comprises a support member 1 for pendulum weights 2 adapted to be rotated about an axis X. The support member 1 is intended to be secured in rotation to an element of the transmission chain of a motor vehicle. The support member 1 defines a closed housing space 3 inside which the pendulum weights 2 are housed. To this end, the support member 1 comprises an outer ring 4, an inner ring 5 and two disks. The rings, outer 4 and inner 5, are concentric and coaxial with the axis X. The two discs 6, 7 extend on both sides of the rings, outside 4 and inside 5. The space 3 of the pendulum weight 2 extends axially between the two disks 6, 7 and radially between the outer ring 4 and inner 5.
    [0005] In the embodiment shown, one of the disks 6 and the outer ring 4 are formed of the same monoblock element. The disk 7 and the inner ring 5 are secured to said one-piece element by a first set of external fasteners, such as rivets, not shown, passing through bores 8, 9 formed in the disc 7 and in the outer ring 9 and a second set of fasteners, such as rivets, not shown, passing through bores 10, 11 formed in the discs 6, 7 and in the inner ring 5. We note that , according to another embodiment not shown, the two disks 6, 7 are distinct elements of the rings, outer 4 and inner 5, which are fixed against the axial faces of the rings, outer 4 and inner 5, in order to take them into position. sandwich. The pendulum weights 2 are mounted oscillating relative to the support member 1 in a plane orthogonal to the axis X of rotation of the damping system. Each of the pendulum weights 2 is guided relative to the support member 1 by means of two rolling bodies which are, in the embodiment shown, cylindrical rollers 12, 13, of circular section. Each counterweight 2 is equipped with two internal raceways 14, 15 cooperating respectively with one and the other of the two cylindrical rollers 12, 13. On the other hand, the support member 1 is also equipped with tracks. external rolling bearings 16 formed in the inner surface of the outer ring 4. Thus, in operation, each cylindrical roller 12, 13 cooperates with one of the internal raceways 14, 15 carried by the pendulum weight 2 and with a track external race 16, facing said inner race track 14, 15, carried by the support member 1. The outer raceways 16 comprise a concavity directed radially outwards while the tracks internal rolling members 14, 15 have a concavity directed radially inwards. The rolling tracks 14, 15, 16 have a general epicyclic shape. The geometry of the raceways is determined according to the desired tuning order. In general, the tuning order of the pendulum weights is such that: (1) nmp. IR / L With: nmp: the tuning order of the pendulum weights; L: the radius of the arc of circle traversed by the center of mass of the pendulum in relation to the support; and R: the distance separating the axis of rotation X from the center of the arc of circle traversed by the center of mass of the counterweight relative to the support. The pendulum weights are advantageously tuned to an order taking a value close to the rank of the overriding harmonics generated by the combustion engine. Since a motor operating with a number of 2 * n cylinders mainly generates harmonics of rank n, the pendulum weights are thus tuned to an order nmp equal to n or close to it. As represented in FIGS. 1, 3 or 4, each pendulum 30 has a central element 17 and two flanges 18, 19 disposed axially on either side of the central element 17 and arranged to ensure the joining of the two rollers. cylindrical 12, 13 to their respective pendulum 2. The central element 17 and the two flanges 18, 19 are fixed to each other by means of a pair of rivets 20, 21 passing through bores 22, 23 formed through the central element 17 and flanges 18, 19. The inner raceways 14, 15 are formed on the outer periphery of the central element 17. The inner raceways 14, 15 may be obtained by molding or by machining. The inner raceways 14, 15 may in particular be obtained by cutting, milling or any other suitable machining means. Each end of the cylindrical rollers 12, 13 is equipped with a pin 24 which projects axially. The pins 24 preferably protrude axially along the axis of revolution of the cylindrical rollers 12, 13. The flanges 18, 19 are provided with grooves 25 receiving the pins 24 of the cylindrical rollers 12, 13 so that the cylindrical rollers 12, 13 are trapped between the flanges 18, 19, as shown in the upper part of Figure 3, and thus secured to the pendulum weights 2.
    [0006] The grooves 25 have a generally oblong shape arranged to allow the displacement of the cylindrical rollers 12, 13 along the inner raceways 14, 15. A functional clearance is provided between the edge of the grooves 25 and the pins 24 so that, in normal operation, the guiding of the movement of the cylindrical rollers 12, 13 relative to the counterweight 2 with which they are associated is not ensured by guiding the pins 24 inside the grooves 25 but by guiding said cylindrical rollers 12, 13 against the inner raceways 14, 15. In the embodiment shown, the grooves 25 have an arcuate shape whose concavity is directed radially inwards. Furthermore, the grooves 25 are symmetrical in pairs, on the one hand, with respect to a radial plane of symmetry of each pendulum flyweight, and, on the other hand, with respect to a plane of symmetry orthogonal to the X axis The pendulum weights 2 are equipped with axial holding members, making it possible to axially center the pendulum weights 2 with respect to the support member 1. The axial retention members are pads 26, made of a polymer material, in particular shown in FIGS. Figures 1 and 4, fixed against the flanges 17, 18. Each pad 26 is interposed between one of said flanges 17, 18 and the disk 6, 7 of the support member, vis-à-vis and allows to axially center the counterweight 2 relative to the support member 1. The pads 26 are preferably made of a polymer material having a low coefficient of friction. The pads 26 are equipped with pins 27 engaged in holes 28 of complementary shape formed in the flanges 17, 18. As shown in particular in Figure 2, the outer raceways 16 are juxtaposed one after the other in a continuous manner. around the axis X. Thus, the cylindrical rollers 12, 13 are each able to pass freely from one of the outer raceways 16 to another adjacent outer raceway 16. Therefore, when the pendulum weights 2 are subjected to vibrations of a large amplitude causing saturation of the pendulum oscillator, the vibrations cause a deflection of the pendulum weights 2 such that the rolling bodies are moved beyond the end of the outer race 16 with which they previously cooperated and change the outer raceway 16. FIG. 8 schematically illustrates three successive positions of a flyweight 2 when each of the cylindrical rollers 12, 13 associated to change twice external raceway 16. The angular movement of the pendulum weights 2 relative to the support member 1 is not limited by any element of stop. The outer races 16 may be obtained by molding or by machining. The outer raceways 16 may in particular be obtained by cutting, milling or any other suitable machining means. In the embodiment shown, the support member 1 comprises more external rolling tracks than the damping system comprises cylindrical rollers 12, 13. Indeed, the support member 1 comprises three tracks 25 rolling However, as explained above, the geometry of the raceways being determined according to the desired tuning order, the number of external raceways by pendulum flyweight 2 is determined in particular according to the tuning order of the external rolling tracks. Thus, by way of example, the support member may in particular comprise, for each counter-flyweight, two external raceways for pendulum weights on the order 1.5, three outer raceways for pendulum weights granted to the order 2 or 4 outer raceways for pendulum weights granted to order 4.
    [0007] Note that the angular sum of the intervals between the pendulum weights 2 is less than the angular distance of an outer raceway 16. Here, the angular distance of an outer raceway 16 is understood to be the angle formed between a straight line passing through the X axis and a first end of an outer raceway and a line through the X axis and the second end of said outer raceway. Thus, a change of outer raceway 16 of the cylindrical rollers 12, 13 of one of the pendulum weights 2 leads to a change of outer raceway 16 of the cylindrical rollers 12, 13 of the other counterbalanced weights 2, which allows ensure a balanced distribution of the pendulum weights 2 about the axis X. Furthermore, the support member 1 comprises an element for damping the fall of the pendulum weights 2 relative to the support member 1 when the Pendulum weights 2 are no longer subjected to centrifugal force. In the embodiment shown in FIGS. 2 to 7, a ring made of elastomeric material 29 covers the inner ring 5 and thus makes it possible to limit the noise when the pendulum weights 2 fall back under the effect of gravity. Such a configuration in which the pendulum weights 2 are no longer subjected to centrifugal force is illustrated in particular in FIGS. 6 and 7. According to another embodiment, the inner ring 5 can be made directly from elastomer in order to dampen the fall of the pendulum weights 2 during an engine stop. The pendulum weights 2 also have at their circumferential ends elastomeric stop elements 30 for damping shocks and limiting noise between two adjacent pendulum weights 12, during an engine stop or under operating conditions. in which the deflections of the pendulum weights 12 are out of phase. In the embodiment shown, each of the two circumferential ends of each of the counterweight 2 is equipped with an elastomeric abutment element 30. However, in another embodiment, not shown, only one of the ends facing two adjacent counterweights is equipped with an elastomeric abutment element 30. The use of the verb "to include", "to understand" or "to include" and of its conjugate forms does not exclude the presence of other elements or other steps than those set out in a claim.
    [0008] In the claims, any reference sign in parentheses can not be interpreted as a limitation of the claim.
    权利要求:
    Claims (15)
    [0001]
    REVENDICATIONS1. Vibration damping system for a motor vehicle transmission comprising: a support member (1) adapted to be rotated about an axis X and having a plurality of outer raceways (16); and a plurality of pendulum weights (2) circumferentially distributed about the X axis and each having two internal raceways (14, 15) radially inward of the outer raceways (16); each of the pendulum weights (2) being mounted oscillating relative to the support member (1) by means of two rolling bodies (12, 13) which cooperate respectively with both of the two inner raceways ( 14, 15) of said pendulum weight (2) and each cooperate with one of the outer raceways (16) of the support member (1) to guide the oscillatory movement of said pendulum weight (2). with respect to said support member (1); said damping system being characterized in that the outer raceways (16) are juxtaposed one after the other continuously around the X axis so that each rolling body (12, 13) is freely fit passing from a first outer race (16) to a second outer race (16), adjacent to said first outer race (16), when the counterweight (2) is biased by vibrations of a an amplitude such that each rolling body (12,13) is moved past one end of said first outer race (16).
    [0002]
    2. damping system according to claim 1, wherein the two rolling bodies (12, 13) associated with each pendulum flyweight (2) are retained in the pendulum flyweight (2) associated.
    [0003]
    3. Damping system according to claim 2, wherein the rolling elements are cylindrical rollers (12, 13) which each comprise at least one end equipped with a pin (24) protruding axially and in which each counterweight ( 2) comprises at least one flange (18, 19) axially bordering the inner raceways (14, 15) of said pendulum weight (2), which is equipped with two grooves (25) each receiving one of said pins (24). .
    [0004]
    4. damping system according to claim 3, wherein the cylindrical rollers (12, 13) comprise two ends equipped with a pin (24) projecting axially and wherein each counterweight (2) has two flanges arranged from and other internal race tracks (14, 15) of said pendulum weight (2) which are each equipped with two grooves (25) each receiving one of said pins (24).
    [0005]
    The damping system according to claim 3 or 4, wherein a functional clearance is provided between each pin (24) and the edges of the groove (25) in which said pin (24) is received, said functional clearance being arranged such that the pin (24) does not touch the edges of the groove (25) when the cylindrical roller (12, 13) equipped with said pin cooperates with the inner race (16) and the outer race (16). ).
    [0006]
    6. damping system according to any one of claims 1 to 5, wherein the support member (1) comprises an outer ring (4) and an inner ring (5) concentric and coaxial with the X axis between which radially extend the pendulum weights (2) and wherein the outer raceways (16) are formed in an inner surface of the outer ring (4).
    [0007]
    7. damping system according to claim 6, wherein the inner ring (5) is covered with a ring of elastomeric material (29) so as to damp the fall of the pendulum weights (2) when the pendulum weights ( 2) are no longer subjected to centrifugal force.
    [0008]
    8. A damping system according to claim 6 or 7, wherein the support member (1) further comprises two disks (6, 7) extending axially 25 on both sides of the inner rings (5) and outer ring (4).
    [0009]
    9. damping system according to claim 8, comprising axial holding members (26) which are fixed to the pendulum weights (2) and which are arranged on either side of said pendulum weights (2), each holding member axial (26) being interposed between one of said pendulum weights (2) and one of the disks (6, 7) of the support member (1) in order to axially center the pendulum weights (2) with respect to the support member (1).
    [0010]
    10. A damping system according to any one of claims 1 to 9, wherein the pendulum weights (2) each comprise two circumferential ends equipped with an elastomeric stop element (30).
    [0011]
    Damping system according to any one of claims 1 to 10, wherein the support member (1) has as many or more external raceways (16) that the damping system comprises rolling bodies. (12, 13).
    [0012]
    The damping system of claim 11, wherein the support member has three or four outer raceways (16) per pendulum weight (2).
    [0013]
    A damping system according to any one of claims 1 to 12, wherein the outer races (16) have an outwardly directed concavity and the inner raceways (14, 15) have a concavity directed inwards.
    [0014]
    14. damping system according to any one of claims 1 to 13, wherein the angular sum of the intervals between the pendulum flyweights (2) is less than the angular distance of an outer race (16). 20
    [0015]
    15. Motor vehicle comprising a damping system according to any one of claims 1 to 14.
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    同族专利:
    公开号 | 公开日
    CN106795944A|2017-05-31|
    US20170241509A1|2017-08-24|
    EP3207280B1|2018-12-12|
    FR3027362B1|2016-11-04|
    WO2016058880A1|2016-04-21|
    US10233996B2|2019-03-19|
    EP3207280A1|2017-08-23|
    CN106795944B|2019-04-16|
    引用文献:
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    FR2989753A1|2012-04-20|2013-10-25|Valeo Embrayages|PENDULAR DAMPING DEVICE, ESPECIALLY FOR A MOTOR VEHICLE TRANSMISSION|
    EP2703688A2|2012-08-29|2014-03-05|Aisin Seiki Kabushiki Kaisha|Torque fluctuation absorbing apparatus|
    JP2003500618A|1999-05-26|2003-01-07|ドゥレク ダニエル|Engines including means for reducing periodic disturbances|
    CN102245928B|2008-12-08|2014-04-30|舍弗勒技术股份两合公司|Damping device having centrifugal force pendulum|
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    DE112011100857B4|2010-03-11|2018-12-13|Schaeffler Technologies AG & Co. KG|Centrifugal pendulum device|
    WO2012090945A1|2010-12-29|2012-07-05|アイシン・エィ・ダブリュ株式会社|Centrifugal pendulum absorber device|
    WO2015043591A1|2013-09-26|2015-04-02|Schaeffler Technologies AG & Co. KG|Centrifugal pendulum device|
    DE102015207738A1|2014-05-20|2015-11-26|Schaeffler Technologies AG & Co. KG|Centrifugal pendulum device and torsional vibration damper|FR3053425B1|2016-06-29|2019-04-12|Valeo Embrayages|ELASTOMER PENDULUM DAMPING DEVICE|
    FR3077609B1|2018-02-08|2021-02-19|Valeo Embrayages|PENDULUM CUSHIONING DEVICE|
    WO2020139033A2|2018-12-28|2020-07-02|주식회사 카펙발레오|Pendulum damper and vehicle torque converter including same|
    FR3097927B1|2019-06-28|2021-07-23|Valeo Embrayages|PENDULUM CUSHIONING DEVICE|
    DE102020109782A1|2020-04-08|2021-10-14|Schaeffler Technologies AG & Co. KG|Centrifugal pendulum|
    DE102020112663A1|2020-05-11|2021-11-11|Schaeffler Technologies AG & Co. KG|Centrifugal pendulum|
    法律状态:
    2015-11-02| PLFP| Fee payment|Year of fee payment: 2 |
    2016-04-22| PLSC| Publication of the preliminary search report|Effective date: 20160422 |
    2016-10-28| PLFP| Fee payment|Year of fee payment: 3 |
    2017-10-31| PLFP| Fee payment|Year of fee payment: 4 |
    2018-10-30| PLFP| Fee payment|Year of fee payment: 5 |
    2019-10-31| PLFP| Fee payment|Year of fee payment: 6 |
    2020-10-30| PLFP| Fee payment|Year of fee payment: 7 |
    2021-10-29| PLFP| Fee payment|Year of fee payment: 8 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1459983A|FR3027362B1|2014-10-17|2014-10-17|PENDULAR DAMPING SYSTEM EQUIPPED WITH A SUPPORT MEMBER HAVING CONTINUOUSLY CONTINUOUSLY RUNNING ROLLING PISTES AROUND THE AXIS OF ROTATION|FR1459983A| FR3027362B1|2014-10-17|2014-10-17|PENDULAR DAMPING SYSTEM EQUIPPED WITH A SUPPORT MEMBER HAVING CONTINUOUSLY CONTINUOUSLY RUNNING ROLLING PISTES AROUND THE AXIS OF ROTATION|
    CN201580055545.5A| CN106795944B|2014-10-17|2015-10-07|Pendulum-type vibration insulating system equipped with supporting member|
    US15/519,266| US10233996B2|2014-10-17|2015-10-07|Pendulum damping system equipped with support member having raceways juxtaposed continuously around rotation axis|
    EP15787144.3A| EP3207280B1|2014-10-17|2015-10-07|Pendulum damping system comprising a support member having adjoining raceways arranged continuously around the axis of rotation|
    PCT/EP2015/073117| WO2016058880A1|2014-10-17|2015-10-07|Pendulum damping system comprising a support member having adjoining raceways arranged continuously around the axis of rotation|
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