Patent ID: 6695108
Filing Date: 2004-02-24
Classification: F16F,F16H

Abstract:
A starting unit for use in a drive system for a vehicle, comprising:a hydrodynamic speed/torque converter comprising a pump wheel and a turbine wheel cooperating with each other, and a stator with respect to which the pump and turbine wheels rotate; a lockup clutch having an output end, a torsional vibration damper with hydraulic dampening for damping vibrations, the damper comprising a primary part and an adjacent secondary part which are rotatable in the peripheral direction relative to each other, the primary and secondary parts including a damping coupling and a spring coupling, the damping coupling comprises a damping chamber formed between the primary and secondary parts and which is tillable with a damping medium; an annular element which is free of a positive locking connection with both of the primary and the secondary parts and the annular element is arranged in the damping chamber; the starting unit having an output end which is rotatable; the vibration damper being connected to the output end of the starting unit; the speed/torque converter having an output end; the output ends of the clutch and the converter being at least indirectly connected to one another in a rotationally fixed manner; the vibration damper is connected functionally downstream of the lockup clutch; the lockup clutch comprises a disk clutch which comprises a clutch input disk and a clutch output disk which are operable into connection with one another at least indirectly; the clutch output disk comprising an element of the torsional vibration damper.