Valeo Corporation

Gustave Chasseguet

Jacques Paquin

Fr&eacute;d&eacute;ric Sauvage

Pierre Casse

Pascal Annic

Michel Ginaldi

Rene Billet

Jacky Naudin

Dominique Despres

Paolo Rumignani

John Willyard

Philippe Cossonniere

The invention concerns a hydrokinetic coupling apparatus comprising a turbine wheel capable of being interlocked with a driven shaft and housed in an impulse starter wheel with which it can co-operate for hydrokinetic transmission of a torque to said driven shaft, from an input shaft capable of being interlocked with said impulse starter wheel, the turbine wheel and/or the impulse starter wheel being constituted in the form of a wheel ( ) including an external doughnut-shaped part ( ) fixed on a hub ( ) and blades ( ) integral with said external doughnut-shaped part ( ) and optionally with an internal doughnut-shaped part ( ). Said blade wheel ( ) is at least partially moulded in one or several parts in synthetic material, in particular a thermoplastic material, a thermosetting material or a synthetic material alloy, said materials being reinforced with resistant fibres.

Turbine wheel for hydrokinetic coupling apparatus, made of plastic material

The invention concerns a plate clutch device ( ) for locking or unlocking an elastic coupling between said turbine wheel ( ) and a radial wall ( ) of said case, via a set of helical shock absorber springs ( ) with circumferential action held in place in the arc-shaped housings ( ) integral with the turbine wheel ( ) and opening in axial direction towards the radial wall ( ). The housings ( ) are directly arranged in the thickened peripheral part ( ) of the turbine wheel ( ) made of mouldable material which for example can be overmoulded on a central metal disc ( ) for connection with the driven shaft, the opposite radial ends ( ) of the housings ( ) acting as supports for the corresponding ends of the springs ( ).

Hydrokinetic coupling apparatus for locking engagement

A blade wheel (,) for a motor vehicle hydrokinetic transmission apparatus having globally a half-torus shape, and comprising axially and successively arranged, a continuous front shell (,) globally shaped like a half-torus with large external diameter, and a continuous rear shell (,), coaxial with the front shell (,), globally shaped like a half-torus with a small external diameter, between which is arranged as assembly of blades (,) whereof the blades (,) extend radially, circumferentially and axially between a concave wall (,) of the front shell (,) and an opposite convex wall (,) of the rear shell (,), the assembly of blades (,), and the front shell (,) are separately made, then assembled to constitute a blade wheel (,), the blade wheel (,) blades (,) being mutually connected at least partly, for example with rings (,), and produced by molding.

Blade wheel

Torsion damping device, notably for motor vehicles

Hydrokinetic coupling apparatus, notably for motor vehicles

Torsion-damping device, particularly in an inertia flywheel forms the reaction plate of a clutch. The damping device comprises two coaxial parts capable of limited rotation relative to each other against the action of springs mounted between pivoted pedestals. Elements of damping material are disposed near engagement zones between the pedestals and each of the coaxial parts.

Torsion-damping device for a torque transmission system

A torsion damping flywheel, particularly for fitting to the clutch of a motor vehicle, has two parts mounted for relative rotational movement about a common axis including an output part comprising two discs forming part of a torque limiter which define externally two guiding flanges housing springs for controlling the relative movement of the two parts. The arrangement simplifies the flywheel by reducing the number of component parts and the axial space requirement.

Torsion-damping flywheel

A torsional damper device comprises coaxial first and second parts which rotate relative to each other to a limited degree. The first part comprises two substantially parallel annular flanges and pivoted base members. Two parallel plates on the second part are disposed axially between the two flanges. They have at least one pair of radial arms comprising parallel and substantially circumferential fingers. Springs are disposed substantially circumferentially between the base members. The base members comprise on a surface opposite that in contact with the respective spring rounded recesses in which the fingers engage on relative rotation between the two coaxial parts. A rotational coupling device constrains the plates to rotate together and establishes a circumferential corresponding relationship between the radial arms and their fingers.

Torsional damper device comprising two coaxial parts cooperating with

An improvement to a torsion damping device, especially a double damped flywheel, for eliminating contact between the springs and one of the rotatable parts of the device when the springs tend to deform under the effect of centrifugal force. According to the invention, the springs, which are conventionally mounted between two pivoted thrust members, are each replaced by a damping device comprising two springs with a central insert between them, the insert being so shaped as to make contact with the inner surface of the spacing ring. The invention is applicable to an automobile transmission.

Torsion damping device

A damper-type flywheel comprises coaxial first and second flywheel parts which rotate relative to each other. There are two spaced annular flanges on the first flywheel part and an annular flange assembly on the second flywheel part which lies between the annular flanges on the first part. Circumferentially acting spring members and a friction device are operative between the first and second flywheel parts. The friction device comprises an annular flange constrained to rotate with the flange assembly, at least one friction ring disposed axially between the annular collar and the flange assembly, and lost-motion circumferential engaging portions operative between the friction ring or rings and one of the annular flanges on the first flywheel part.

Damper-type flywheel suitable for automobile transmissions

A damper-type flywheel comprises a first part on which are two spaced annular flanges and a second part coaxial with the first part, the first and second parts being rotatable relative to each other. There is a flange assembly comprising at least one annular flange on the second part disposed between the annular flanges on the first part. A friction device is operative between the first and second parts for relatively small amounts of relative displacement between them. At least two circumferentially acting spring members are operative between the first and second parts in conjunction with this friction device for relatively large amounts of relative displacement between them. Openings in the annular flanges of the first part accommodate these spring members. Arms on the flange assembly of the second part cooperate with the spring members. A spring centering device is provided between the first and second parts so that, in an inoperative configuration of the flywheel, there is clearance in each circumferential direction between the spring members and the arms. At least one circumferential spacer is disposed circumferentially between two of the spring members and bears circumferentially on these two spring members. The spring centering device is operative between the flange assembly and the spacer.

A torsional damper device comprises an intermediate member responsive to centrifugal force. At low values of torque, beyond a predetermined critical rotation speed, it causes to become operative an elastic intermediate member which is normally inoperative at such low values of torque. This intermediate member comprises at least one flange which, by way of a toothed portion, is selectively interlocked with the hub. By way of a bearing lug, it is adapted to act on the elastic member concerned.

Growing community of inventors

Taverny, France

Gustave Chasseguet