Fluid-dynamic storage system for spindle motor, has fixed components and rotary component, which is pivoted relative to fixed components around rotational axis

摘要

The fluid-dynamic storage system has fixed components (12,16,18) and a rotary component (14), which is pivoted relative to the fixed components around a rotational axis (46). A storage gap (20) is formed between surfaces opposite to each other of the two components. The storage gap has a section with two opening ends filled with the storage fluid. A recirculation channel (28) is arranged and dimensioned such that the generated current of the storage fluid is reduced or avoided by centrifugal forces in the recirculation channel.