Patent ID: 11946477
Assignee: nan
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 0:
1. A fan comprising:
an internal annular frame;
an internal maglev assembly connected to the internal annular frame;
internal movable elements kept floating by the internal maglev assembly;
internal blades each of which comprises an end connected to a corresponding one of the internal movable elements; and
an external annular frame extending around the internal annular frame;
an external maglev assembly connected to the external annular frame;
external movable elements kept floating by the external maglev assembly;
an intermediate annular frame connected to the internal annular frame;
an intermediate maglev assembly connected to the intermediate annular frame;
intermediate movable elements kept floating by the intermediate maglev assembly; and
external blades each of which comprises an end connected to a corresponding one of the external movable elements and another end connected to a corresponding one of the intermediate movable elements.