Frequency dynamic absorber for torsional vibration damper of hydrodynamic torque coupling device

摘要

A torsional vibration damper assembly (20) for a hydrodynamic torque coupling device comprises a torsional vibration damper (21) and a dynamic absorber (70) operatively connected to the torsional vibration damper. The torsional vibration damper (21) comprises a driven member (30) rotatable about a rotation axis, a first holding plate rotatable coaxially with the rotation axis with respect to the driven member, And a plurality of damper elastic members (38) arranged between the one holding plate and the driven member. The damper elastic member (38) elastically connects the first holding plate to the driven member. The dynamic absorber has an inertia member (74). The inertia member (74) is rotatably mounted on the torsional vibration damper with respect to the driven member. The inertia member (74) is rotationally guided and centered with respect to the rotation axis by the driven member of the torsional vibration damper.