Abstract: A pendulum damping device incorporated into a drive train of a motor vehicle, notably into a clutch, includes a support capable of rotational movement about an axis of rotation, a pendulum assembly of which the movement with respect to the support is guided by at least one rolling member, and an end-stop damping system borne directly by the pendulum assembly and able at least to damp the coming of said pendulum assembly into a position of abutment against the support of said pendulum assembly during the radial fall and/or saturation of this said pendulum assembly. The pendulum assembly also includes at least one radial protuberance designed to pass at least partially through an opening made in the end-stop damping system.

Abstract: A pendulum damping device incorporated into a drive train of a motor vehicle, notably into a clutch, includes a support capable of rotational movement about an axis of rotation, a pendulum assembly of which the movement with respect to the support is guided by at least one rolling member, and an end-stop damping system borne directly by the pendulum assembly and able at least to damp the coming of said pendulum assembly into a position of abutment against the support of said pendulum assembly during the radial fall and/or saturation of this said pendulum assembly. The pendulum assembly also includes at least one radial protuberance designed to pass at least partially through an opening made in the end-stop damping system.

Abstract: A pendulum damping device including a support that rotates about an axis, at least one pendulum body and at least one rolling member guiding the movement of the pendulum body relative to the support, the rolling member engaging with at least one rolling track rigidly connected to the support and with at least one rolling track rigidly connected to the pendulum body. The rolling member includes a first part defining a first axial end, a second part defining a second axial end, and a resilient element arranged in the rolling member so as to axially separate these two parts so that the rolling member exerts an axial clamping force on one of the pendulum body and the support during the movement of the pendulum body relative to the support.

Abstract: A pendulum damping device including a support that rotates about an axis, at least one pendulum body and at least one rolling member guiding the movement of the pendulum body relative to the support, the rolling member engaging with at least one rolling track rigidly connected to the support and with at least one rolling track rigidly connected to the pendulum body. The rolling member includes a first part defining a first axial end, a second part defining a second axial end, and a resilient element arranged in the rolling member so as to axially separate these two parts so that the rolling member exerts an axial clamping force on one of the pendulum body and the support during the movement of the pendulum body relative to the support.

Abstract: A device for damping torsional oscillations, the device including at least one support capable of rotational displacement around an axis, at least one pendulum assembly, including at least one pendulum mass, the pendulum assembly being movable with respect to the support, at least one rolling member, each rolling member interacting with at least one first raceway defined by the support and with at least one second raceway defined by the pendulum assembly, the displacement of the pendulum assembly with respect to the support being guided by at least one of those rolling members, the device further including at least one friction member, carried by the pendulum assembly, for generating hysteresis in all or parts of the relative displacements of the pendulum assembly and the support.

Abstract: A double damping flywheel comprises primary and secondary coaxial members. The members are rotatable relative to one another and coupled by first and second damping elements arranged in series by a connecting web. The first damping element includes at least one curved elastic member running circumferentially between two first seatings. The second damping element includes at least two groups of elastic members, each including at least two straight elastic members arranged in series by an intermediate bearing element. Each of the groups of straight elastic members runs circumferentially between two second seatings. An annular member for phasing the straight elastic members, separate from the connecting web, carries the intermediate bearing element of each group. The difference between the maximum angular displacement between the primary member and the connecting web, and the maximum angular displacement between the secondary member and the connecting web, is less than 30°.

Abstract: The invention relates to a flexible flywheel (2), in particular for a motor vehicle, comprising at least two stacked flexible discs (9, 10, 11). The inner peripheries (12) of the flexible discs are secured to a drive shaft, and the outer peripheries (30) of are secured to an inertia mass (31). Each flexible disc (9, 10, 11) includes at least two parallel flat parts (15, 16, 17), which are offset axially (D1, D2) and connected to one another by a curved part (18, 19). The curved parts (18, 19) of the discs (9, 10, 11) are substantially nested one inside the other, characterized in that, in at least one region adjacent to a curved part, the discs (9, 10, 11) are spaced one from the other so as to form a space (23, 27, 29) which facilitates the axial deformation of the discs (9, 10, 11).

Abstract: The invention relates to a double damping flywheel for a clutch, comprising primary and secondary coaxial members. The members are mobile in rotation in relation to one another and coupled by first and second damping elements arranged in series by a connecting web.

Abstract: The invention relates to a flexible flywheel (2), in particular for a motor vehicle, comprising at least two stacked flexible discs (9, 10, 11). The inner peripheries (12) of the flexible discs are secured to a drive shaft, and the outer peripheries (30) of are secured to an inertia mass (31). Each flexible disc (9, 10, 11) includes at least two parallel flat parts (15, 16, 17), which are offset axially (D1, D2) and connected to one another by a curved part (18, 19). The curved parts (18, 19) of the discs (9, 10, 11) are substantially nested one inside the other, characterised in that, in at least one region adjacent to a curved part, the discs (9, 10, 11) are spaced one from the other so as to form a space (23, 27, 29) which facilitates the axial deformation of the discs (9, 10, 11).