Patent ID: 6416416
Filing Date: 2002-07-09
Classification: F16F

Abstract:
A torsional vibration damper, including a primary body (1) and a secondary body (2) and comprising a drag element which comprises: at least one friction element with at least one pressure device, at least one catch, and at least one elastic element, wherein said friction element interacts with one of the primary body or the secondary body and wherein the pressure device is arranged so that a force acting on the pressure device increases the friction between the friction element and one of the primary body or the secondary body, whereby the elastic element is able to exert a force on the pressure device in dependence on the rotation between the primary and the secondary bodies; and wherein the elastic element has an elastomeric element in a cavity such that the volume of the cavity is reduced upon a relative rotational movement between the primary body (1) and the secondary body (2).