Device comprising a rotor and a magnetic suspension bearing for the contactless bearing of the rotor

摘要

The device comprises a) a rotor (20) which can rotate or rotates about a rotational axis (A) and b) at least one magnetic suspension bearing (2, 3), in which the rotor can be or is mounted in a contactless manner and which comprises at least one super-conductive structure in addition to several permanent magnets, and c) a cooling device comprising at least one refrigeration head (22, 23) for cooling the super-conductive structure of the or each magnetic suspension bearing, whereby d) the rotor and each magnetic suspension bearing are arranged in a common gas chamber (60), which is surrounded by a gas-proof wall (61). The advantage of the device is that ice is prevented from forming on the magnetic suspension bearing.