Electric drive has main electric motor for driving flywheel that drives drive shaft and auxiliary electric motor mounted in central bore in flywheel

摘要

The drive has a main electric motor (5) for driving a flywheel (2) that drives a drive shaft via a reversible coupling and an additional electric motor (12) that can be used in addition to the drive for the drive shaft. The main electric motor and the auxiliary electric motor are mounted in a central bore in the flywheel. A cooling device is provided for the main electric motor and/or the auxiliary electric motor.