Device for transmitting torque in the power train of a watercraft having an internal combustion engine

Abstract

Torque fluctuations, which, on one hand, come from the engine, and on the other hand, come from the power take-off side due to the effect of the rudder and beating of the blade, and which are primarily caused by the typically low rotational speed in drives of watercraft, lead to intense vibrations in the hull and generate. noise. A device for transmitting torque in the power train of a watercraft damps torsional vibrations occurring in the power train of a watercraft and, therefore, ensures low-noise and low-vibration operation. The device includes an engine-side, primary flywheel mass, a secondary flywheel mass coupled at the power take-off to a gearbox driving the ship propeller, as well as a torsionally elastic connection disposed therebetween. The special requirements in the power train of a watercraft are satisfied by a secondary flywheel mass, which is coupled to the shaft on the output end and has a high mass moment of inertia, as well as by a large torsion angle between the primary and secondary flywheel masses, which is rendered possible by the design of the elastic coupling.

Dependencies are inferred from the claim text.