Automatic transmission

摘要

An automatic transmission comprising a torque converter and a change-speed transmission having a plurality of planetary gearsets and friction elements. This automatic transmission has a central supporting member fixedly mounted in a transmission case. A drum supported by this central supporting member contains clutch components and a one-way clutch inside. On the outer cylinder of the drum is mounted a band brake. The outer race of the one-way clutch in the drum is connected to the clutch hub in the drum, while the inner race of the one-way clutch is connected to the outer cylinder of the drum.