Gearbox, especially for automobiles, comprising two coaxial epicyclic gear trains, namely an input train and an ouput train, comprises an epicyclic speed divider train mounted upstream of the input train

摘要

Gearbox comprising two coaxial epicyclic gear trains, namely an input train (4) and an ouput train (5), comprises an epicyclic speed divider train (6) mounted upstream of the input train to give at least two supplementary speeds. Each train comprises a sun gear, planet gears, a planet gear carrier and a ring gear.