Download ppt - PowertrainWaldemar Schulz / TFQ-1 ZF Trading GmbH Novelties

Powertrain Waldemar Schulz / TFQ-1ZF Trading GmbH

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

Dual Mass Flywheel DMFTechnology at a glance

all require extremely high-performance torsional dampers


spring tuning parameters

primary flywheel

secondary flywheel

planet wheel

Dual Mass Flywheel (DMF)


RPM Fluctuationengine

RPM Fluctuationtransmission

Time

Engine Transmission

Time

Vibration damping

Conventional Powertrain


Engine Transmission

RPM Fluctuationengine

RPM Fluctuationtransmission

Vibration damping

Time Time

Powertrain with Sachs Planetary DMF


Torsion damper set Sachs(tensionless state)


Torsion damper set Sachs(first grade stopper)


Torsion damper set Sachs(second grade stopper)


Second stage

First stage

Torsion angle (°)

To

rqu

e (

Nm

)

Second stageFirst stage

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.

Dual Mass Flywheel DMF Torsion damper set Sachs