Patent ID: 8206227

Claim:
A torsional vibration damper comprising: a drive-side primary element ( 4 , 62 , 88 , 110 , 116 , 120 ) having at least one primary dog ( 14 , 16 ); an output-side secondary element ( 8 ) having at least one secondary dog ( 18 , 20 ); at least one spring device ( 32 , 34 ) between the primary and secondary dogs ( 14 , 16 , 18 , 20 ) for spring-elastic coupling of the primary element ( 4 , 62 , 88 , 110 , 116 , 120 ) to the secondary element ( 8 ) and including a plurality of spring elements ( 36 , 38 ); a separator sheet ( 46 ) including a ring element ( 48 ); and at least one sliding block ( 44 ) extending from the ring element between adjacent ones of the spring elements ( 36 , 38 ) and arranged circumferentially about the spring elements ( 36 , 38 ), wherein the primary element ( 4 , 62 , 88 , 110 , 116 , 120 ) has an inner part ( 50 ) having an external toothing ( 56 ), an outer part ( 52 ) on which the primary dog ( 14 , 16 ) is arranged and having an internal toothing ( 58 ) engaging into the external toothing ( 56 ), and at least one damping part ( 54 , 70 , 90 , 118 ) arranged between the external and internal toothing ( 56 , 58 ) for vibration damping between the inner and outer parts ( 50 , 52 ).