Integrated assembly for automatic transmission

Details Integrated assembly for automatic transmission Integrated assembly for automatic transmission

F - Mech Eng,Light,Heat,Weapons

16

H

F16H 63/30 (2006.01) F16H 3/66 (2006.01) F16H 57/08 (2006.01)

Patent

CA 2397476

The invention concerns a hydraulic clutch and a speed reducing planetary gear train, said assembly comprising a fixed feeder block (12), a rotating crankcase (1) integral with a feeder sleeve (2) receiving at least a piston (3, 13), a so-called closure wall (20) and at least a set of friction discs (4, 14) for driving at least an output hub (6, 16) and a speed reducing planetary gear train (50), and a including a ring gear (51) designed to be driven by an input shaft (10), a fixed axle pinion (53), and a planet pinion cage (52). The closure wall (20) is made integral in rotation with the feeder sleeve (2) and the crankcase (1) and directly driven by the planet pinion cage (52). The invention also concerns an automatic transmission, in particular for motor vehicles, comprising such an integrated assembly.

Ensemble intégré comprenant un embrayage hydraulique et un train planétaire réducteur de vitesse, ledit ensemble comportant, d'une part, un palier d'alimentation fixe (12), un carter tournant (1) solidaire d'un manchon d'alimentation (2) recevant au moins un piston (3, 13), une paroi dite de fermeture (20) et au moins un jeu de disques de friction (4, 14) destinés à entraîner au moins un moyeu de sortie (6, 16), et, d'autre part, un train planétaire réducteur de vitesse (50) comportant une couronne (51) destinée à être entraînée par un arbre d'entrée (10), un planétaire fixe (53), et un porte-satellites (52): la paroi de fermeture (20) est rendue solidaire en rotation du manchon d'alimentation (2) et du carter (1) et entraînée directement par le porte-satellites (52). Transmission automatique, notamment de véhicules automobiles, comportant un tel ensemble intégré.

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