Torsional vibration damper

Details Torsional vibration damper Torsional vibration damper

2007-09-11

2007-09-11

Rodriguez, Saul (Department: 3681)

192 clutches and power-stop control

Vortex-flow drive and clutch

Including drive-lockup clutch

C192S070170, C192S212000

Reexamination Certificate

active

11078007

ABSTRACT:
A torsional vibration damper for a lockup clutch of a hydrodynamic clutch arrangement is provided with a drive-side transmission element and a driven-side transmission element which can deflect around a rotational angle relative to each other against the action of energy accumulators. The transmission elements have recesses for receiving an energy accumulator, respectively, which can be supported by its respective end coils at respective circumferential ends of the recess. The circumferential ends of every recess are oriented, respectively, substantially along a first connection line to a first center of curvature. However, the circumferential end coils of every energy accumulator are oriented substantially along a second connection line to a second center of curvature in the absence of a relative rotational deflection of the transmission elements. The second connection line is oriented at an initial set angle relative to the first connection line. At the start of a relative rotational deflection of the transmission elements until reaching a predetermined limiting relative rotational deflection, a change in the set angle between the second connection line and the first connection line to a final set angle is initiated at the respective end coil of every energy accumulator. The end coils of every energy accumulator undergo at least substantially no further change in the final set angle when a relative rotational deflection exceeds the predetermined limiting relative rotational deflection.

REFERENCES:
patent: 5810138 (1998-09-01), Bertram et al.
patent: 6244962 (2001-06-01), Bacher et al.
patent: 6332843 (2001-12-01), Hashimoto

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