User Guide

DMF for Continuously Variable Transmission (CVT)
In a fully automatic gearbox, the torque converter acts,
among other things, as a centrifugal oscillation damper
in the drive train. CVT gearboxes, however, work without
a torque converter. Therefore, the centrifugal damping is
provided by a special form of the DMF.
1 Hub
2 Additional mass on the secondary mass side
The crucial difference from the DMF designs described
above is in the design of the torque output. This does not
take place via the friction surface of the secondary mass
or via the flange toothing as in the double clutch damper.
In the DMF for CVT gearboxes, the engine torque is
directly transferred through a central hub, riveted to the
flange and the secondary mass, to the form-fit gearbox
input shaft.
1 2
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