Fan with an axial motor, has stator shaped as hollow cup with central shaft projecting from its base into interior of rotor to support rotor bearings.

摘要

The fan has a wheel (14) with blades (26) and an electric drive motor (16). The wheel is attached to the end of the rotor (30), which runs inside a stator (32) shaped as a hollow cup. The stator has a central shaft (50) extending from its closed end, and the bearings (34) are supported on this shaft, which projects into the hollow interior of the rotor, so the bearings are inside the rotor.