Patent ID: 6516928
Filing Date: 2003-02-11
Classification: F16H

Abstract:
A hydrodynamic coupling device comprisinga casing arrangement, a turbine rotor which can be rotated about an axis of rotation in the casing arrangement, said turbine rotor comprising a turbine rotor hub, which can be coupled to a drive element for joint rotation, a turbine rotor shell fixed to said hub and having a plurality of integrally formed drive apertures, and a plurality turbine rotor blades fixed to said shell, a lock-up clutch arrangement for the optional production of a torque transmission connection between the turbine rotor and the casing arrangement, and a torsional vibration damper arrangement which couples the turbine rotor for torque transmission to the lock-up clutch arrangement, said torsional vibration damper comprising a coupling element having a plurality of integrally formed drive protrusions which engage in respective said drive apertures in said turbine rotor shell essentially without clearance in the peripheral direction to form a positive drive arrangement.