1. Torsional oscillation of engine crankshaft is reduced by disc carrying rotating asymmetric masses;Bolzmann,1991
2. Driven shaft with moment of inertia varying with acceleration;Breunig,1996
3. Device for balancing alternating moments;Brüdgam,1987
4. Kraftfahrzeugantriebsstrangvorrichtung;Eder,2011
5. Method and device for reducing rotational non-uniformities of the crankshaft of a piston internal combustion engine;Kreuter,2008