Novelties

Dual Mass Flywheel DMF Technology at a glance Technical requirements: Higher torque levels Higher ignition pressures Stricter emission controls Greater requirements for comfort and noise control Protection of gearbox and vibration-sensitive vehicle components all require extremely high-performance torsional dampers

Dual Mass Flywheel (DMF) planet wheel secondary flywheel primary flywheel spring tuning parameters

Conventional Powertrain 19.04.2017 Conventional Powertrain RPM Fluctuation engine transmission Time Engine Transmission Vibration damping

Powertrain with Sachs Planetary DMF Engine Transmission RPM Fluctuation engine transmission Vibration damping Time

Torsion damper set Sachs (tensionless state)

Torsion damper set Sachs (first grade stopper)

Torsion damper set Sachs (second grade stopper)

Dual Mass Flywheel DMF Torsion damper set Sachs The spring pans and sliding shoes are there to avoid blockade of the springs and with it the damage; at the same time sliding friction is acting as a damping. Second stage First stage First stage Second stage Torque (Nm) Torsion angle (°)