Temperature-adaptive eddy current rotation damper

A temperature-adaptive eddy current rotation oscillation damper, comprising:

• (i) an absorber mass which is equipped with wheels or rollers mounted on at least one shaft, and which is movable on a guide device according to active oscillation forces,
• (ii) at least one rotationally symmetric magnetic disk, which is connected to the at least one shaft and rotates therewith when the absorber mass moves, and
• (iii) at least one stationary electrical conductor element, which is functionally connected to the at least one rotating magnetic disk via a gap, consequently generating an oscillation-damping eddy current during operation, wherein
• (iv) the electrical conductor element (5) is connected to the absorber mass (2), and a surface area and size of the electrical conductor element are selected in such a manner that the absorber mass (2) connected thereto functions as a cooling body to dissipate heat generated by the eddy current,
• (v) a displacement element (6) is provided which is able to axially move and displace the at least one magnetic disk (13)(14) on the at least one shaft (10) in such a manner that it changes a width of the gap (33) between the conductor element (5) and the magnetic disk (13)(14), and
• (vi) a temperature-dependent expansion volume (7) is provided, which acts on the displacement element (6) by having an expansion coefficient which is greater than an expansion coefficient of the displacement element, such that the displacement element (6), (a) upon expansion of the volume (7) by an increase in temperature, pulls the magnetic disk (13)(14) out of a starting position axially in a direction of the conductor plate (5), opposing a preload force (30) and reducing the gap (33), and (b) upon a contraction of the volume (7) when the temperature drops, pushes the magnetic disk (13)(14) by the preload force (30) back in a direction of the starting position, enlarging the gap (33).