Torsional vibration damper in internal combustion engines is fixed on crank web of crankshaft with its mass centre opposite crank pin and with damping medium filling up gaps in work chamber

摘要

The damper (1) is fixed on the crank web of the crank shaft and its mass centre is opposite the crank pin relative to the axis of rotation of the crankshaft. The damper has a work chamber which can be sealed fluid-tight and which contains a secondary mass which is movable relative to same. The spaces and gaps remaining between the secondary mass and the walls of the work chamber are filled with a viscous damping medium. The damping medium is preferably a highly viscous silicon oil or engine oil