Patent ID: 11859634
Assignee: REGAL BELOIT AMERICA, INC.
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 14:
15. A fan hub for use in a fan assembly configured to rotate about an axis, said fan hub comprising:
a core ring;
a first inner ring circumscribing said core ring;
a first plurality of circumferentially-spaced ribs extending between said core ring and said first inner ring, wherein the first plurality of ribs consists of ribs which are spaced about the entire circumferences of the core ring and the first inner ring;
a second inner ring circumscribing said first inner ring; and
a second plurality of circumferentially-spaced deformable ribs extending between said first inner ring and said second inner ring, wherein the second plurality of ribs consists of ribs which are spaced about the entire circumferences of the first inner ring and the second inner ring, wherein the number of ribs of said first plurality of ribs is equal to the number of ribs of said second plurality of deformable ribs, wherein the second plurality of ribs is located radially outwardly of the first plurality of ribs, wherein said first plurality of ribs is circumferentially offset from said second plurality of deformable ribs;
wherein at least on rib of said second plurality of deformable ribs comprises a rib void, said rib void comprising removed material to facilitate balancing said fan assembly.