Valeo Embrayages

Valeo Corporation

Thery, Pascal

Pascal Thery

Alexandre Depraete

Rabah Arhab

Gino Villata

Daniel Satonnet

Norbert Termenon

Roël Verhoog

David Forgeron

Sylvain Thomire

Christian Hoffmann

Gustave Chasseguet

The invention relates to a system for the hydraulic control () of a clutch (), e.g. a motor vehicle clutch, comprising an upstream master cylinder () which is connected to a down-stream slave cylinder () by means of a conduit (). The invention is characterized in that the system comprises a servo cylinder () which is disposed in the conduit () between the master cylinder () and the slave cylinder (), said servo cylinder comprising at least one servo piston which can be subjected to an assist force produced by a servo device.

Hydraulic clutch control system, comprising servo means which are disposed between the master cylinder and the slave cylinder of the system

An automated transmission device with torque transfer having an input shaft () that supports drive pinions (), each of which is engaged with a driven pinion () that is mounted freely rotating on a output shaft (); controlled unidirectional locking mechanism () which are mounted between the shaft () and the driven pinions (); and mechanical device for activating the locking mechanisms () in a positive manner including at least one cam () which translationally moves inside the output shaft ().

Automated transmission device with torque transfer, in particular for a motor vehicle

A hydrokinetic coupling apparatus for a motor vehicle including a crankcase (), designed to link in rotation, about an axis X, an input shaft to an impeller wheel; a turbine wheel () designed to be linked in rotation to an output shaft () via hub () and a flange () transversely oriented extending radially outwards relative to the hub; a lockup clutch () coupling the input and output () shafts comprising a piston () for releasably connecting the turbine wheel () to a substantially transverse wall () of the crankcase () against which the piston () is urged to lock the coupling; and at least a friction stop () interposed axially between the turbine wheel () and the piston (). A friction stop () is arranged radially beyond the outer periphery () of the flange ().

Hydrokinetic coupling apparatus, in particular for motor vehicle

A transmission between a gear () mounted freely to rotate about a shaft and a one-way drive-lock mechanism () for engaging in rotation the gear () and its shaft in a rotational direction, including a ring () integral in rotation with the shaft and bearing on its radial surface () at least two dogs () pivotally mounted about radial axes () between rest and locking positions on the gear () wherein they prevent the gear from rotation relative to the shaft. The invention is particularly applicable to transmission systems for a motor vehicle.

Locking device with transmission gears

An automated gear drive, comprising two main gearshafts ( ) bearing drive pinions ( ) and linked each by a clutch (E , E ) to a clutch shaft ( ), a gearbox output shaft ( ) bearing driven pinions ( ) each of which is associated with one-way locking device ( ) controlled to be selectively interlocked with the gearbox output shaft ( ), the one-way locking device ( ) being controlled by mechanical device ( ) common to all the loose pinions ( ) of the different gear ratios. The automated gear drive enables in particular gear ratio shift with uninterrupted torque transmission to the gearbox output shaft ( ).

Growing community of inventors

Amiens, France

Pascal Thery