Torsional damper

Abstract

The invention relates to a torsional damper used for a rotary bearer having a rotary center; the torsional damper at least comprises the following parts: a centrifugal force swing; a damper and / or a bias device matched for affecting a fixed frequency of the centrifugal force swing, wherein the damper and / or bias device is applied to at least one swing mass of the swing masses; the torsional damper can use simple measurement to compensate different frequency of the locomotive, and especially aims to the low starting frequency and high frequency in driving.

Description

technical field [0001] The invention relates to a torsional vibration damper for a rotatable carrier unit with a center of rotation, in particular for a friction clutch, a torque armature or a dual-mass oscillator. Background technique [0002] Engines are used in modern motor vehicles, which are increasingly running at low speeds. It is precisely at such low rotational speeds that natural frequencies of components in the drive train or in the body of the motor vehicle are encountered. This low frequency must therefore be compensated exactly. For this purpose, it is known, for example, to use centrifugal pendulums, wherein a high mass must be used for damping low frequencies. A disadvantage of this is that a high mass inertia reduces the efficiency of the torque transmission. Furthermore, the structural size and / or the production costs of such a centrifugal force pendulum necessarily increase with an increase in mass. In addition, exceptionally low natural frequencies ca...

AI Technical Summary

Problems solved by technology

But the centrifugal pendulum has the disadvantage that it only works for a certain frequency spectrum

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