| 摘要 |
A rotary vibration damping device for damping rotary vibrations in a drive train through which the output torque of an internal combustion engine is transmitted in a drive power flow direction to driving wheels ot a motor vehicle. The damping device includes a first inertial mass arrangement that is connected to a crank shaft of the internal combustion engine for the purpose of rotation around a rotational axis, a second inertial mass arrangement that is connected via a spring device to the first inertial mass arrangement for common rotation around the rotational axis and for relative rotation with respect to the first inertial mass arrangement, and at least a third inertial mass arrangement that is connected to the drive train before the spring device in the drive power flow direction for rotation around the rotational axis. The third inertial mass arrangement can be disconnected from the drive train, with respect to rotary drive, when a predetermined operating state is attained. |
