Patent ID: 7267212
Filing Date: 2007-09-11
Classification: F16F,F16H

Abstract:
1. A torsional vibration damper for a lockup clutch of a hydrodynamic clutch arrangement, said vibration damper comprising: a drive-side transmission element and a driven-side transmission element which can deflect rotationally relative to each other against the action of energy accumulators, each transmission element having a plurality of recesses, each recess having a pair of opposed circumferential ends lying on respective first connection lines to a first center of curvature, and a plurality of energy accumulators received in said recesses, each energy accumulator having a pair of opposed circumferential end coils which are supported by respective opposed circumferential ends of respective recesses in each of said transmission elements, the end coils of each energy accumulator lying on respective second connection lines to a second center of curvature, said second connection line forming a set angle with said first connection line, wherein said set angle is an initial set angle in the absence of relative rotational deflection of the transmission elements, said set angle changing from said initial set angle to a final set angle when a predetermined limiting relative rotational deflection is reached, said set angle remaining substantially constant when said predetermined limiting relative rotational deflection exceeded.