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Title: The two-mass flywheel - a torsional vibration damper for the power train of passenger cars - state-of-the-art and further technical development

Conference ·
OSTI ID:6374966

The rotational irregularities of an engine, which are primarily caused by the forces generated by the combustion gases during the periodic combustion process, are transmitted to the driveline and there lead to vibration and noise. Since 1985, BMW has been using its two-mass flywheel on certain gasoline and diesel engines. This is a mechanical low-pass filter, which largely isolates rotational irregularities and vibration from the complete driveline and therefore reduces the noise level inside the vehicle. Running speeds significantly exceeding 5000 rpm however cause a severe increase in wear on the internal components of the torsional vibration damper, as a consequence of the higher centrifugal forces.

OSTI ID:
6374966
Report Number(s):
CONF-870204-
Resource Relation:
Conference: Society of Automotive Engineers international congress and expo, Detroit, MI, USA, 23 Feb 1987
Country of Publication:
United States
Language:
English