• 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:
    Shock absorber (1) of torsional oscillations, comprising two series-connected damping stages (2, 3), each damping stage (2, 3) having an input component and an output component, the output of a damping stage being rotatable about an axis (X) with respect to the input component of this damping stage against resilient return members (4, 5), the elastic return members (4) of the first damping stage (2) being radially offset relative to the resilient return members (5) of the second damping stage (3), the damper comprising three washers (10, 11, 12): - a first washer (10), - a second washer (11), and - a third washer (12) having a radially outer portion (17) and a radially inner portion (25), the output component of the first damping stage (2) being formed by the first washer (10) and the radial portion t external (17) of the third washer (12), and the input component of the second damping stage (3) being formed by the second washer (11) and the radially inner portion (25) of the third washer ( 12), the first washer (10) and the second washer (11) being obtained from one and the same piece.
    公开号:FR3057321A1
    申请号:FR1659766
    申请日:2016-10-10
    公开日:2018-04-13
    发明作者:Michael Hennebelle；Roel Verhoog
    申请人:Valeo Embrayages SAS；
    IPC主号:
    专利说明:

    ® FRENCH REPUBLIC
    NATIONAL INSTITUTE OF INDUSTRIAL PROPERTY © Publication number: 3,057,321 (to be used only for reproduction orders) (© National registration number: 16 59766
    COURBEVOIE © Int Cl 8 : F16 F15 / 123 (2017.01), F 16 F 15/14, F 16 H 45/02
    A1 PATENT APPLICATION
    (22) Date of filing: 10.10.16. © Applicant (s): VALEO EMBRAYAGES Company by (30) Priority: simplified actions - FR. @ Inventor (s): HENNEBELLE MICHAEL and VERHOOG ROEL. (43) Date of public availability of the request: 13.04.18 Bulletin 18/15. ©) List of documents cited in the report preliminary research: Refer to end of present booklet (© References to other national documents @ Holder (s): VALEO EMBRAYAGES Company by related: simplified actions. ©) Extension request (s): (© Agent (s): VALEO EMBRAYAGES Company by simplified actions.
    IN PARTICULAR FOR TORQUE CONVERTER
    HYDRODYNAMIC TORSIONAL OSCILLATOR.
    FR 3 057 321 - A1 (£ ”) Damper (1) of torsional oscillations, comprising two damping stages (2, 3) connected in series, each damping stage (2, 3) having a component input and an output component, the output component of a damping stage being rotatable about an axis (X) relative to the input component of this damping stage against members elastic return (4, 5), the elastic return members (4) of the first damping stage (2) being radially offset with respect to the elastic return members (5) of the second damping stage (3), l shock absorber comprising three washers (10, 11, 12):
    - a first washer (10),
    - a second washer (11), and
    - a third washer (12) having a radially outer portion (17) and a radially inner portion (25), the outlet component of the first damping stage (2) being formed by the first washer (10) and by the portion radially outer (17) of the third washer (12), and the input component of the second damping stage (3) being formed by the second washer (11) and the radially inner portion (25) of the third washer ( 12), the first washer (10) and the second washer (11) being obtained from a single piece.
    Torsional oscillation damper, especially for a hydrodynamic torque converter
    The present invention relates to a torsional oscillation damper, in particular for a hydrodynamic torque converter.
    The torsional oscillation damper is intended to reduce the influence in the transmission chain of the torsional oscillations generated by the acyclisms of the vehicle's thermal engine.
    The application filed in France by the Applicant on May 12, 2016 under number 16 54271 discloses a torsional oscillation damper for a hydrodynamic torque converter which includes two damping stages in series. The input of the first damping stage is connected to the output of a lockup clutch.
    Several shock architectures are disclosed in this application.
    There is a need to further improve torsional oscillation dampers, in particular for a hydrodynamic torque converter.
    The object of the invention is to meet this need and it achieves this, according to one of its aspects, using a torsional oscillation damper, comprising two damping stages mounted in series, each stage damping element having an input component and an output component, the output component of a damping stage being rotatable about an axis relative to the input component of this damping stage at the against elastic return members, the elastic return members of the first damping stage being radially offset with respect to the elastic return members of the second damping stage, the damper comprising three washers:
    - a first washer,
    - a second washer, and
    - A third washer having a radially outer portion, and a radially inner portion, the outlet component of the first damping stage being formed by the first washer and by the radially outer portion of the third washer, and the inlet component of the second damping stage being formed by the second washer and the radially inner portion of the third washer, the first washer and the second washer being obtained from a single piece.
    According to the invention, one starts from the same sheet to make the first washer and the second washer. We can thus reduce the amount of waste related to the manufacture of the first washer and the manufacture of the second washer since we use the scraps from one of these washers to make the other washer.
    The first washer may extend generally axially from a first side of the elastic return members of the first damping stage, the second washer may extend generally axially from the first side of the elastic return members of the second damping stage, the radially outer portion of the third washer may extend generally axially from a second side of the elastic return members of the first damping stage and the radially inner portion of this third washer may extend generally axially from the second side of the members elastic return of the second damping stage. The second side of the elastic return members may be that on which the turbine of the hydrodynamic torque converter is disposed, when the damper is integrated into such a torque converter.
    The radially outer portion of the third washer can extend generally axially from the first side of the elastic return members of the second damping stage while the radially inner portion of this same washer can extend generally axially from the second side of these members elastic return of the second damping stage. The change of side of the third washer relative to the elastic return members of the second damping stage can be done radially between these elastic return members and those of the first damping stage.
    The first washer and the second washer have identical properties, since they are made of the same material.
    The first washer and the second washer being from the same part, for the same circumferential position, the radially outer edge of the second washer is always at a distance from the axis of rotation which is less than the distance from the radially inner edge of the first washer.
    Within the meaning of this request:
    - the terms “input” and “output” are defined according to the direction of transmission of the torque from the engine of the powertrain to the wheels of the vehicle,
    - "a washer generally extends on one side of an elastic return member" means that the washer is mainly on this side of the elastic return member without excluding that it may marginally extend from the other side,
    - "axially" means "parallel to the axis of rotation",
    - "radially" means "in a plane to which the axis of rotation is perpendicular, and along a straight line intersecting this axis of rotation", and
    - "circumferentially" means "around the axis of rotation".
    The first washer may have a radially inner edge of a shape complementary to the shape of the radially outer edge of the second washer.
    The damper may include a flange forming the input component of the first damping stage, this flange being in particular axially framed by the first washer and by the radially outer portion of the third washer. This flange may be unique and it may be integral with the output of a bypass clutch of the hydrodynamic torque converter, as will be seen below.
    The damper can also comprise a single flange forming the outlet component of the second damping stage, this flange being in particular axially framed by the second washer and by the radially inner portion of the third washer.
    This flange forming the output component of the second damping stage may be integral with an output hub of the hydrodynamic torque converter.
    The elastic return members of the first damping stage can be arranged radially outwardly relative to the elastic return members of the second damping stage.
    The elastic return members of the first damping stage can be axially offset with respect to the elastic return members of the second damping stage. The elastic return members of the first damping stage are, for example, axially more distant from the turbine of the hydrodynamic torque converter than are the elastic return members of the second damping stage. The opposite is however possible. It is also possible that the elastic return members of the first damping stage are axially superimposed with the elastic return members of the second damping stage.
    In all of the above, the elastic return members of the first damping stage may comprise pairs of elastic return members, two elastic return members of a pair being connected in series and a phasing member interacting with these . In this case, the phasing member can be formed by two flanges and these two flanges can axially frame the flange forming the input component of the first damping stage, while themselves being axially framed by the first washer and by the radially outer portion of the third washer. As a variant, the elastic return members of the first damping stage can be mounted in parallel with each other.
    In all of the foregoing, each elastic return member of the first damping stage may be comprising at least one straight spring, being for example formed by two concentric straight springs, and each elastic return member of the second damping stage may include at least one curved spring, being for example formed by two concentric curved springs.
    As a variant, each elastic return member of the first damping stage can comprise at least one curved spring and each elastic return member of the second damping stage can comprise at least one straight spring.
    In another variant, all the elastic return members may include curved springs, both those of the first damping stage and those of the second damping stage.
    The damper may include a system for limiting the range of rotation between the input component and the output component of the first damping stage. This limitation system can also make it possible to limit the amplitude of rotation between the input component of the second damping stage and the output component of this second damping stage.
    According to an example of particular implementation of the invention:
    the shock absorber comprises a flange forming the input component of the first damping stage, this flange being axially framed by the first washer and by the radially outer portion of the third washer,
    the shock absorber comprises a flange forming the outlet component of the second damping stage, this flange being axially surrounded by the second washer and by the radially inner portion of the third washer,
    - the elastic return members of the first damping stage are arranged radially outwardly relative to the elastic return members of the second damping stage,
    - the elastic return members of the first damping stage are axially offset with respect to the elastic return members of the second damping stage, and
    - each elastic return member of the first damping stage is a curved spring and each elastic return member of the second damping stage is a straight spring.
    In all of the foregoing, the shock absorber may also comprise a pendulum damping device comprising at least one support and at least one pendulum body movable relative to this support.
    The pendulum damping device comprises for example a number of pendulum bodies between two and eight, in particular three, four, five or six pendulum bodies.
    All these pendulum bodies can succeed one another circumferentially. The pendulum damping device can thus comprise a plurality of planes perpendicular to the axis of rotation in each of which all the pendulum bodies are arranged.
    The pendulum damping device can be with a single support and the pendulum body can comprise a first pendulum mass arranged axially on a first side of the support and a second pendulum mass arranged axially on a second side of the support, the first and the second pendulum masses being joined together by at least one connecting member.
    In this case, the connecting member can define a second raceway on which a rolling member of the pendulum damping device rolls to guide the movement of the pendulum body. Each rolling element can then only be subjected to compression between the second rolling track mentioned above and a first rolling track defined by the support. These first and second rolling tracks cooperating with the same rolling member can be at least partially radially opposite, that is to say that there are planes perpendicular to the axis of rotation in which these rolling tracks both extend.
    As a variant, in the case where the pendulum body comprises two pendulum masses secured to each other, each pendulum mass of a pendulum body can define a second rolling track on which a rolling member of the pendulum damping device rolls to guide the movement of the pendulum body. Each rolling member can then successively comprise axially:
    a portion disposed in an opening of the first pendulum mass and cooperating with the second rolling track formed by a part of the contour of this opening,
    a portion disposed in an opening of the support and cooperating with a first raceway formed by a part of the contour of this opening, and
    - A portion disposed in an opening of the second pendulum mass and cooperating with the second raceway formed by a part of the contour of this opening.
    The pendulum damping device can also be other than a single support device. The pendulum damping device comprises for example two axially offset supports which are integral with each other, the pendulum damping device also comprising a plurality of pendulum bodies, each pendulum body comprising at least one pendulum mass disposed axially between the two supports. The pendulum body comprises for example several pendulum masses secured to each other. All these pendulum masses of the same pendulum body can be arranged axially between the two supports. As a variant, only certain pendulum mass (es) of the pendulum body extends axially between the two supports, other pendulum mass (s) of this body pendulum extending axially beyond one or the other of the supports.
    In all of the above, each pendulum body can only be moved relative to the support in translation around a fictitious axis parallel to the rotation tax of the support.
    Alternatively, each pendulum body can be moved relative to the support at the same time:
    - in translation around a fictitious axis parallel to Support rotation tax and,
    - Also rotating around the center of gravity of said pendulum body, such a movement also being called "combined movement".
    The pendulum damping device support can be attached to the output component of the first damping stage and to the input component of the second damping stage. The support of the pendulum damping device is for example riveted to one of the aforementioned washers. It is thus possible to fix the support of the pendulum damping device to a washer without having to pass through other elements of the damper to do this. The installation in the torsional oscillation damper of the pendulum damping device is then simplified.
    The support of the pendulum damping device and the flange defining the output component of the second damping stage can be obtained from a single piece. From the same sheet, it is thus possible to produce the support for the pendulum damping device and this flange. As already mentioned above, we can reduce the amount of waste associated with the manufacture of this support and this flange since we use the scraps of one of these pieces to make the other piece.
    The support of the pendulum damping device and the flange also have identical properties, since they are made of the same material.
    The support and the flange being from the same part, for the same circumferential position, the radially outer edge of the flange is always at a distance from the axis of rotation which is less than the distance from the radially inner edge of the support
    The flange forming the outlet component of the second damping stage may have a radially outer edge of a shape complementary to that of the radially inner edge of the support of the pendular damping device.
    Another subject of the invention, according to another of its aspects, is a torsional oscillation damper, comprising two damping stages connected in series, each damping stage having an input component and an output component, the output component of a damping stage being movable in rotation about an axis relative to the input component of this damping stage against elastic return members, the damper also comprising a pendulum damping device comprising a support and at least one pendulum body movable relative to this support, the support of the pendulum damping device and a flange defining one of the aforementioned input and output components being obtained from '' one and the same room.
    All or part of the characteristics mentioned above also applies to this other aspect of the invention.
    Another subject of the invention, according to another of its aspects, is a hydrodynamic torque converter, comprising:
    - a housing,
    - a lockup clutch,
    - a turbine,
    - a hub, and
    - a torsional oscillation damper as defined above
    The input component of the first damping stage can be connected to the output of the lock-up clutch and the turbine can be connected to the input component of the second damping stage, so that the transmitted torque from the housing to the hub can alternatively:
    - cross the lockup clutch, then the first damping stage, then the second damping stage when the lockup clutch is closed, and
    - cross the turbine, then the second damping stage when the lockup clutch is open.
    The connection between the output of the lockup clutch and the input component of the first stage can be carried out by means of attached tabs, for example welded or riveted, on the output of the lockup clutch. These tabs are for example attached to the internal disc carrier of the lockup clutch when the latter comprises a multi-plate clutch. Each tab is for example fixed, for example welded or riveted on this input component, in particular this flange. Each leg may not extend through any element of the shock absorber between the flange forming the input component of the shock absorber and the output of the lockup clutch.
    Another subject of the invention is, according to another of its aspects, a method of producing a torsional oscillation damper, comprising two damping stages connected in series, each damping stage having an input component and an output component, the output component of a damping stage being rotatable about an axis relative to the input component of this damping stage against elastic return members, the elastic return members of the first damping stage being radially offset with respect to the elastic return members of the second damping stage, the damper comprising three washers:
    - a first washer, extending in particular generally axially from a first side of the elastic return members of the first damping stage,
    a second washer, extending in particular generally axially from the first side of the elastic return members of the second damping stage, and
    - a third washer presenting:
    - a radially outer portion, extending in particular generally axially from a second side of the elastic return members of the first damping stage, and
    a radially inner portion, extending in particular generally axially from the second side of the elastic return members of the second damping stage, the outlet component of the first damping stage being formed by the first washer and by the radially outer portion of the third washer, and the input component of the second damping stage being formed by the second washer and the radially inner portion of the third washer, a method in which the first washer and the second washer are obtained from a single and even room.
    According to the method, it is also possible, from a single piece, to produce a pendulum damping device support and a flange defining the output component of the second damping stage.
    Another subject of the invention is, according to another of its aspects, a method of producing a torsional oscillation damper, comprising two damping stages connected in series, each damping stage having an input component and an output component, the output component of a damping stage being rotatable about an axis relative to the input component of this damping stage against elastic return members, the damper also comprising a pendular damping device comprising a support and at least one pendular body movable relative to this support, method in which the support of the pendular damping device and a flange defining one of the input components and output above are obtained from a single piece.
    All or some of the characteristics mentioned above in relation to the shock absorber still apply to the process (ies) defined above.
    The invention will be better understood on reading the description which follows of a nonlimiting example of implementation thereof and on examining the appended drawing in which:
    FIG. 1 represents a torsional oscillation damper according to an exemplary implementation of the invention,
    - Figure 2 is an exploded view of the damper of Figure 1,
    FIG. 3 is a sectional view, in a plane containing the rotation tax of the shock absorber, of the shock absorber of FIG. 1,
    FIG. 4 represents the support of the pendular damping device and the flange forming the output component of the second damping stage of the damper of FIG. 1,
    - Figure 5 shows the first washer and the second washer of the shock absorber of Figure 1,
    - Figure 6 shows different components of the damper of Figure 1, and
    - Figure 7 shows in detail the pendulum damping device which is integrated into the torsional oscillation damper in the implementation example described, Figure 8 showing a variant of such a pendulum damping device .
    FIG. 1 shows a damper 1 for torsional oscillations for a hydrodynamic torque converter.
    This damper 1 comprises in the example described two damping stages 2 and 3, these two damping stages 2 and 3 being connected in series. As will be seen below, the first damping stage 2 implements elastic return members 4 with circumferential action around an axis X which are arranged in parallel with each other, and the second damping stage 3 puts using elastic return members 5 with circumferential action around the axis X, which are arranged in parallel with one another. Three elastic return members 4 are provided here, and three elastic return members 5 are also provided.
    The elastic return members 4 here comprise curved springs, each elastic return member 4 here being formed by two concentric curved springs, while the elastic return members 5 here comprise straight springs, being formed by two straight concentric springs. In a variant not shown, the elastic return members 4 include straight springs and the elastic return members 5 include curved springs.
    As can be seen for example in FIG. 3, the elastic return members 4 can be arranged radially outwardly relative to the elastic return members 5, while also being axially offset with respect to these elastic return members 5.
    In the example considered, the input component of the first damping stage 2 is formed by a single flange 6. This flange 6 is in the example considered fixed to the output of a lockup clutch via a radial portion 20 of the internal disc holder 9 which forms for example the output of this lockup clutch. This flange 6 has a plurality of windows 7, each receiving two curved springs forming an elastic return member 4. One of the edges 8 of this window 7 comes, for example, to bear directly against one end of these springs 4 to transmit the torque .
    The torsional oscillation damper 1 also comprises three washers 10, 11 and 12 which will now be described. The first washer 10 extends generally on the side of the elastic return members 4 on which is disposed the radial portion 20 of the disc holder 9, also called "first side". This first side is opposite to the second side which is that of which the turbine 13 of the hydrodynamic torque converter is located, as can be seen in FIG. 3. The first washer 10 is largely hollowed out internally, its radially inner edge 14 remaining radial beyond the elastic return members 5 of the second damping stage
    3.
    The second washer 11 also extends generally on the first side on the side of the elastic return members 5 first side on which is disposed the radial portion 20 of the disc holder 9.
    This second washer 11 occupies an inner radial position relative to that occupied by the first washer 10. The radially outer edge 15 of the second washer 11 thus remains radially below the elastic return members 4 of the first damping stage 2.
    It can be seen, in particular in FIG. 3, that the second washer 11 carries lugs 16 whose role will be described later.
    As can be seen in FIG. 5, the first washer 10 and the second washer 11 are, according to the example described, produced from a single piece. The same sheet is then used to produce on the one hand the first washer 10 and on the other hand the second washer 11. It can be seen in FIG. 5 that the radially inner edge 14 of the first washer 10 and the radially outer edge 15 of the second washer 11 have complementary shapes, being here both circular.
    The third washer 12 has a radially outer portion 17 which extends generally axially from a second side, opposite the first side, relative to the elastic return members 4 of the first damping stage. This radially outer part 17 also extends generally on the first side of the elastic return members 5 of the second damping stage 3.
    The first washer 10, as well as the radially outer portion 17 of the third washer 12, form the output component of the first damping stage 2.
    The elastic return members 4 thus allow rotation about the axis X between the flange 6 which forms the input component of the first damping stage 2, and the washers 10 and 12.
    The first washer 10 and the radially outer part 17 of the third washer 12 here axially frame the flange 6. Each end of a spring 4 forming an elastic return member of the first damping stage 2 comes for example to bear against a boss formed on each of the washers 10 and 12.
    It can be seen in the figures that the third washer 12 is extended radially inwards from the elastic return members 4 by a radially inner portion 25. This radially inner portion 25 extends generally axially from the second side of the elastic return members 5 of the second damping stage and also generally axially of the second side of the elastic return members 4 of the first damping stage 2.
    The second washer 11 forms, with the radially inner part 25 of the third washer 12, the input component of the second damping stage 3. It can be seen, for example in FIG. 2, that the second washer 11 comprises a plurality of windows 27 which each receive two concentric straight springs 5 forming an elastic return member of the second damping stage. Bosses formed in the radially inner part 25 of this third washer 12 cooperate with these springs 5.
    Each window 27 has here an edge coming to cooperate, for example by direct support, against an end of straight springs 5. Between two consecutive windows 27, circumferentially speaking, an amount 29 is provided. Each of these uprights 29 comprises in the example described one of the aforementioned lugs 16, produced by cutting, and arranged radially inside with respect to the windows 27. Each lug 16 cooperates with housings 37 formed in the flange 6 forming the input component of the first damping stage 2, these housings 37 being formed radially inside the windows 7 of this flange 6. Each end of a housing 37 defines in the example considered a stop position for a lug 16, so that the rotational movement of the second washer 11 relative to the flange 6 has a limited amplitude. It is thus possible to protect the springs 4 forming the elastic return members of the first damping stage 2 and / or the springs 5 forming the elastic return members of the second damping stage 3 from excessive compression.
    The output component of the second damping stage 3 is formed by another flange 40. This other flange 40 is here secured to a hub 41 movable in rotation around the axis X, this hub 41 being for example mounted on a gearbox input shaft.
    Windows 45 are provided in the flange 40, these windows each receiving an elastic return member 5 from the second damping stage 3. It can be seen that the radially inner edge of these windows 45 is produced in part by radial arms 48, each arm 48 extending in a substantially central zone of a window 45.
    The damper 1 also comprises, in the example described, a pendulum damping device 50 which will now be described. Two variants of this pendulum damping device 50 are shown in FIGS. 7 and 8. In a known manner, the pendulum damping device 50 comprises a support 51 and a plurality of pendulum bodies 52 succeeding each other circumferentially. Each pendulum body 52 is in the two variants shown formed by two pendulum masses 53 axially framing the support 51 and secured to each other, for example by rivets 55 in the case of Figure 8 or by spacers 56 in the case of the figure 7, these spacers further defining a raceway.
    Note in Figure 3 that each pendulum body 52 is arranged axially between the elastic return members 4 of the first damping stage 2 and the turbine 13 of the hydrodynamic torque converter. It can also be seen in the figures that each pendulum body 52 can extend radially exclusively externally to the elastic return members 5 of the second damping stage 3, in particular up to the elastic return members 4 of the first damping stage 2.
    The support 51 of the pendulum damping device 50 is here fixed via rivets 57 to the third washer 12, these rivets 57 here being arranged radially at the level of the elastic return members 5 of the second damping stage 3, circumferentially between two windows 45, as can be seen in Figure 4.
    It can also be seen in FIG. 4 that the flange 40 forming the output component of the second damping stage 3 and the support 51 of the pendular damping device 50 are produced from a single piece. The same sheet is then used to produce on the one hand the flange 40 and on the other hand the support 51. It can be seen in FIG. 4 that the radially outer edge 60 of the flange 40 and the radially inner edge 61 of the support 51 of the device pendulum damping 50 have complementary shapes
    The invention is not limited to the examples which have just been described.
    权利要求:
    Claims (13)
    [1" id="c-fr-0001]
    Claims
    1. A damper (1) for torsional oscillations, comprising two damping stages (2, 3) connected in series, each damping stage (2, 3) having an input component and an output component, the output component of a damping stage being movable in rotation about an axis (X) relative to the input component of this damping stage against elastic return members (4, 5) , the elastic return members (4) of the first damping stage (2) being radially offset relative to the elastic return members (5) of the second damping stage (3), the damper comprising three washers (10, 11, 12):
    - a first washer (10), extending in particular generally axially from a first side of the elastic return members (4) of the first damping stage (2),
    - a second washer (11), extending in particular generally axially from the first side of the elastic return members (5) of the second damping stage (3), and
    - a third washer (12) having:
    - a radially outer portion (17), extending in particular generally axially from a second side of the elastic return members (4) of the first damping stage (2), and
    - A radially inner portion (25), extending in particular generally axially from the second side of the elastic return members (5) of the second damping stage (3), the output component of the first damping stage (2) being formed by the first washer (10) and by the radially outer portion (17) of the third washer (12), and the input component of the second damping stage (3) being formed by the second washer (11) and the radially inner portion (25) of the third washer (12), the first washer (10) and the second washer (11) being obtained from a single piece.
    [2" id="c-fr-0002]
    2. Damper according to claim 1, the first washer (10) having a radially inner edge (14) of shape complementary to that of the radially outer edge (15) of the second washer (11).
    [3" id="c-fr-0003]
    3. Shock absorber according to one of the preceding claims, comprising a flange (6) forming the input component of the first damping stage (2), this flange (6) being in particular axially framed by the first washer (10) and by the radially outer portion (17) of the third washer (12).
    [4" id="c-fr-0004]
    4. Shock absorber according to any one of the preceding claims, comprising a flange (40) forming the outlet component of the second damping stage (3), this flange (40) being in particular axially framed by the second washer (11) and by the radially inner portion (25) of the third washer (12).
    [5" id="c-fr-0005]
    5. Shock absorber according to any one of the preceding claims, the elastic return members (4) of the first damping stage (2) comprising pairs of elastic return members, two elastic return members (4) of a pair being mounted in series and a phasing member (14) interacting with the latter.
    [6" id="c-fr-0006]
    6. Damper according to any one of the preceding claims, each elastic return member (4) of the first damping stage (2) comprising at least one curved spring and each elastic return member (5) of the second damping stage (3) comprising at least one straight spring.
    [7" id="c-fr-0007]
    7. Shock absorber according to any one of the preceding claims, further comprising a pendulum damping device (50) comprising at least one support (51) and at least one pendulum body (52) movable relative to this support (51) .
    [8" id="c-fr-0008]
    8. Shock absorber according to claims 4 and 7, the support (51) of the pendulum damping device and the flange (40) defining the output component of the second damping stage (3) being obtained from a single and same room.
    [9" id="c-fr-0009]
    9. A damper according to claim 8, the support (51) of the pendulum damping device (50) having a radially inner edge (60) of shape complementary to that of the radially outer edge (61) of the flange (40) defining the component. second damping stage outlet (3)
    [10" id="c-fr-0010]
    10. Hydrodynamic torque converter, comprising:
    - a housing,
    - a lockup clutch (9),
    - a turbine (13),
    - a hub (41), and
    - a damper (1) for torsional oscillations according to any one of the preceding claims.
    [11" id="c-fr-0011]
    11. Torque converter according to claim 10, the input component (6) of the first damping stage being connected to the output (9) of the lockup clutch and the turbine (13) being connected to the component input (12) of the second damping stage, so that the torque transmitted from the housing to the hub (41) can alternately:
    - cross the lockup clutch (9), then the first damping stage (2), then the second damping stage (3) when the lockup clutch is closed, and
    - cross the turbine, then the second damping stage (3) when the lockup clutch is open.
    [12" id="c-fr-0012]
    12. Method for producing a torsional oscillation damper (1), comprising two damping stages (2, 3) connected in series, each damping stage having an input component and an output component, the output component of a damping stage being movable in rotation about an axis (X) relative to the input component of this stage
    5 of damping against elastic return members, the elastic return members (4) of the first damping stage (2) being radially offset with respect to the elastic return members (5) of the second stage of damping (3), the damper comprising three washers:
    - a first washer (10),
    10 - a second washer (11), and
    - a third washer (12) having a radially outer portion (17) and a radially inner portion (25), the output component of the first damping stage being formed by the first washer (10) and by the radially outer portion ( 17) of the third washer (12), and the input component
    15 of the second damping stage being formed by the second washer (11) and the radially inner portion (25) of the third washer (12), method in which the first washer (10) and the second washer (11) are obtained from a single piece.
    [13" id="c-fr-0013]
    13. The method of claim 12, wherein one made, from a single piece,
    20 a support (51) of pendulum damping device (50) and a flange (40) defining the output component of the second damping stage (3).
    1/3
    2/3
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    同族专利:
    公开号 | 公开日
    FR3057321B1|2018-11-02|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    GB2281767A|1990-05-31|1995-03-15|Luk Lamellen & Kupplungsbau|Torque transmitting apparatus|
    GB2251284A|1990-12-24|1992-07-01|Luk Lamellen & Kupplungsbau|Torsional vibration damper|
    WO2007054052A1|2005-11-10|2007-05-18|Luk Lamellen Und Kupplungsbau Beteiligungs Kg|Automotive drive train having an eight-cylinder engine|
    DE102008032009A1|2007-08-02|2009-02-05|Luk Lamellen Und Kupplungsbau Beteiligungs Kg|Device for damping vibrations, in particular multistage torsional vibration dampers|WO2020173521A1|2019-02-27|2020-09-03|Schaeffler Technologies AG & Co. KG|Torsional vibration damper with a rotational axis for a powertrain|
    WO2020173513A1|2019-02-27|2020-09-03|Schaeffler Technologies AG & Co. KG|Torsional vibration damper with a rotational axis for a powertrain|
    WO2020249157A1|2019-06-11|2020-12-17|Schaeffler Technologies AG & Co. KG|Dual clutch arrangement having torsion vibration damper|
    法律状态:
    2017-10-31| PLFP| Fee payment|Year of fee payment: 2 |
    2018-04-13| PLSC| Search report ready|Effective date: 20180413 |
    2020-09-23| PLFP| Fee payment|Year of fee payment: 5 |
    2021-05-28| TP| Transmission of property|Owner name: VALEO KAPEC CO., LTD., KR Effective date: 20210422 |
    2021-09-27| PLFP| Fee payment|Year of fee payment: 6 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1659766A|FR3057321B1|2016-10-10|2016-10-10|TORSION OSCILLATION DAMPER, IN PARTICULAR FOR HYDRODYNAMIC TORQUE CONVERTER|
    FR1659766|2016-10-10|FR1659766A| FR3057321B1|2016-10-10|2016-10-10|TORSION OSCILLATION DAMPER, IN PARTICULAR FOR HYDRODYNAMIC TORQUE CONVERTER|
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