Patent ID: 6620048
Filing Date: 2003-09-16
Classification: F16F

Abstract:
Apparatus for damping vibrations between coaxial rotary output and input elements, comprising:a first rotary torque transmitting device coaxial with and arranged to receive torque from said output element; a second rotary torque transmitting device coaxial with and arranged to transmit torque to said input element, one of said devices comprising at least two sidewalls rotatable with each other and bounding an annular chamber having a sealed radially outer part and a radially inner part; a partition including a radially outer section in said chamber and a ring-shaped radially inner section extending substantially radially inwardly beyond the inner part of said chamber and connected for rotation with the other of said devices; energy storing means provided in said chamber and arranged to yieldably oppose rotation of said one device and said partition relative to each other; and means for sealing said inner part of said chamber,including at least one rigid annular carrier borne by one of said sidewalls and an elastically deformable annular sealing lip provided on said carrier, wherein the sealing lip is biased by its own elasticity to sealingly engage said ring-shaped inner section of said partition, said carrier consisting of a first material and said lip consisting of a different second material.