Valeo Embrayages

Matthieu Malley

Adrien Nerriere

Olivier Fafet

Didier Couvillers

Antoine Vigreux

Franck Cailleret

Laurent Caumartin

Roël Verhoog

Pascal Dast

David Salvadori

Gabriel Bouche

Jonathan Rost

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.

Pendular damping device

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.

Pendulum damping device

A torsional damper for vehicle transmission systems comprises an input element rotationally movable around an axis and exhibiting at least one window comprising two angularly spaced lateral edges and a radially external edge. An output element is rotationally movable around the axis and exhibits at least one window comprising two angularly spaced lateral edges and a radially external edge. An elastic return member capable of being received simultaneously in the window of the input element and the window of the output element generates a force acting against rotation of the output element with respect to the input element. An additional element is rotationally movable around the axis and integral with one of the input element and output element. The additional element exhibits an edge comprising at least one region projecting radially into the window of the input element and output element with which the additional element is integral.

Torsional damper for a vehicle transmission system

The invention relates on the one hand to a progressivity device for a clutch friction disk, comprising a progressivity web () having a central rotation axis (X), having on one face of its external rim () a series of blades () on which are configured at least two deformable pleats () delimiting a region () intended to support a first friction lining (G) and equipped with a stiffness element, and on the other face a second friction lining (G) fastened symmetrically to the first lining (G), wherein the stiffness element comprises at least one tab projecting below the region (), one end of which is intended to come into abutment against the web () upon deformation of the pleats (), limiting the arching of the region (); and on the other hand to a friction disk comprising such a device.

Progressivity device for clutch friction disk, and friction disk comprising such device

This device comprises two coaxial elements mounted rotatably with respect to a spring, and two seats for positioning the spring. Each seat comprises a dorsal pivot projection configured in two coaxial elements. The pivot projection is delimited by a cylinder portion whose section is a first circular arc whose tangent forms an angle &#x3b1; with the axis of the spring. The section of each receptacle is formed by a second circular arc, having the same center and radius of curvature as the first circular arc, the tangent of which forms with the axis of the spring an angle &#x3b3; greater than &#x3b1;. The pivot axes are parallel to one another at a distance L, and are included in a plane located at a distance R from the rotation axis. The maximum deflection angle of the device is &#x3b4;. &#x3b3; is within the range [arctg(L/2R)&#x2212;&#x3b4;/8 to arctg(L/2R+&#x3b4;].

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Beauvais, France

Matthieu Malley