Valeo Embrayages

Valeo Otomotiv Sanayi Ve Ticaret Anonim Sirketi

Olivier Marechal

Didier Bagard

Roel Verhoog

Pierre Boucheny

Daniel Fenioux

Franck Cailleret

Jerome Boulet

Herve Mahe

Pascal Dast

Benoit Fleche

Gabriel Bouche

Bernard Dubois

David Denizot

Carsten Lauridsen

Cihan Çiçek

Olivier Bouchez

Hervé Mahe

Benoit Couturier

Jérôme Boulet

Derya Sapan

Nicolas Deliencourt

Yulin Xu

Dominique Dael

Maxence Boitelle

Cihan Cicek

Julien Brailly

Sébastien Kindt

A torsion damper for a vehicle powertrain includes a first element having a support element and a second element movable in rotation with respect to the first element about an axis of rotation X. Springs are mounted between the first element and the second element so as to compress to allow relative rotation about the X axis between the first element and the second element. A friction device including a friction washer provided with at least one fixing portion rigidly fixed in rotation on a support element of the first element, the friction washer having a friction portion having a friction track backed against a dorsal face of the friction portion. An elastic washer arranged axially between the first element and the dorsal face of the friction portion, each fixing portion for fixing to the first element being connected to the friction portion by a flexible element allowing axial displacement of the dorsal face of the friction portion relative to the support element of the first element.

Torsion damper and clutch disk

A torque transmission device includes a first element, a second element, and a third element which are able to rotate about an axis of rotation; a first spring which is arranged between the first element and the third element; a second spring which is arranged between the second element and the third element; a first supporting seat positioned at a first end of the first spring; and a second supporting seat positioned at a first end of the second spring. The third element includes a torque transfer element directly transferring torque between the first spring and the second spring.

Torque transmission device with springs in series and torque transmission system comprising such a device

A propulsion system for an electric vehicle includes a first electric propulsion motor including a stator and a rotor that has a first and second output shafts that are axially opposed and define first and second torque outputs of the first electric motor. The system also includes a second electric propulsion motor including a stator and a rotor having a second output shaft with a torque output. Further, the system includes a first reduction gearbox to receive the torque supplied on the first torque output of the first electric motor where appropriate via a first selective or non-selective coupling system, a second reduction gearbox to receive the torque supplied by the second electric motor where appropriate via a second selective or non-selective coupling system, and a third coupling system for coupling the second torque output of the first electric motor to the torque output of the second electric motor.

Electric vehicle propulsion system

A torsion damping device for a vehicle transmission line including a first rotating element, a second rotating element, a main damper, a third rotating element and an additional damper. When the angular displacement between the first and second rotating elements is greater than zero and less than said first threshold, the at least one main spring is compressed while the third rotating element is rotated by the first rotating element via the uncompressed additional spring, and when the angular displacement between the first and second rotating elements is greater than said first threshold, the at least one main spring is compressed and the at least one additional spring is compressed in parallel, the compression of the additional spring being accompanied by the relative rotation of the first rotating element and the third rotating element.

Torsion damping device with main damper and additional damper

A torsion damping device for a vehicle drivetrain includes: a first rotary element, a second rotary element, an elastic device, a friction device including an actuating washer mounted to rotate as one with a friction washer and including an actuating tab interposed circumferentially between a first end of a spring and the first rotary element so as to allow relative rotation between the actuating washer and the second rotary element when the first end of the spring is compressed by the first rotary element in the direction of a second end of the spring opposite to the first end.

Torsion damping device with activatable friction device

A device for damping torsional oscillations, including: a pendulum-type torsional oscillation damper, a supplementary torsional oscillation damper including an input element, an output element, wherein both are configured to rotate around one axis rotation, and at least one mechanical energy accumulator device disposed between the input and output elements, a torque limiter, including at least one friction coating fixed on a disk, configured to be displaced around the axis. The disk is connected to rotate with the input element of the supplementary torsional oscillation damper and the friction coating is fixed to the disk of the torque limiter by an adhesively bonded surface-to-surface joint.

Device for damping torsional oscillations

A powertrain mechanism in a vehicle having an internal combustion engine. The powertrain mechanism is provided for transmitting power from the engine to a gearbox. The mechanism includes at least one drive plate and at least one connection hub. The hub has an assembly section disposed in at least one assembly opening provided in the vicinity of the center of the drive plate. At least one protrusion upper section defines at an uppermost section of at least one protrusion provided mutually on an inner wall of the assembly opening and on an outer wall of the assembly section. At least one recess base defines at a lowermost section of at least one recess wherein the at least one protrusion is at least partially placed. The powertrain mechanism further includes at least one movement gap provided between the protrusion upper section and the recess base.

Powertrain mechanism with drive plate

A filtering mechanism for torque fluctuations is interposed between a crankshaft of an internal combustion engine and a transmission. This mechanism comprises a rotating member to be damped, an oscillating inertial flywheel rotating around the axis of revolution, and pivot-mounted modules allowing angular deflection of the oscillating inertial flywheel with respect to the member to be damped. The modules each have at least one oscillating arm pivoting radially with respect to the member to be damped and a kinematic connecting member between the oscillating arm and the oscillating inertial flywheel. When the mechanism rotates centrifugal forces on the oscillating arm produce a counteracting torque that tends to return the oscillating inertial flywheel and the member to be damped toward the equilibrium position. The counteracting torque increases with the rotation speed of the filtering mechanism and with the amplitude of the angular deflection.

Mechanism for filtering torque fluctuations of secondary member

Growing community of inventors

Amiens, France

Olivier Marechal