Shift device for transverse automatic transmission with the powerflow passing through two stages of coupled gears.

摘要

Automatic gear change device of the transverse end-on type, having, inside a casing (30), a primary shaft (3) in line with the output shaft (12) of the engine, and carrying a hydraulic converter (1), this primary shaft (3) driving, by means of cylindrical gearing (10, 11, 13, 26) associated with several clutches and immobilisation means (14, 15, 17, 18, 19), a secondary shaft parallel to the primary shaft (3), the secondary shaft (4) itself carrying an epicyclic gear train (5), characterised in that the set of clutches and immobilisation means (14, 15, 18, 19) are grouped together on the primary shaft (3) except for a single immobilisation means (17) carried by the secondary shaft (4).