FAN BLADE RETENTION SYSTEM

摘要

A fan comprises a rotatable hub assembly having an inner anchor assembly, a plurality of fan blades, a motor assembly, and a plurality of cables. The outer ends of the cables are coupled to the outer ends of the fan blades, and the inner ends of the cables are coupled to the inner anchor assembly. The inner anchor assembly may further include a disc-shaped plate and a plurality of inner anchor members to which the cables may be coupled. The inner anchor members may include a rear anchor portion and fore anchor portion, and these anchor portions may be angularly offset. A plurality of winglets and/or outer anchor members may be coupled to the outer ends of the fan blades to which the outer ends of the cables may be coupled. The outer ends of the cables may further comprise swaged tips outboard of the winglets and/or outer anchor members.

主权项

1. A fan comprising:
(a) a motor assembly; (b) a rotatable hub assembly having an inner anchor assembly, wherein the rotatable hub assembly is rotatably coupled to the motor assembly; (c) a plurality of fan blades, each fan blade comprising:
i. a first end securably coupled to the rotatable hub assembly,ii. a second end,iii. a leading edge,iv. a trailing edge, andv. a channel extending from the first end to the second end; and (d) a plurality of cables, each cable having a inner end and a outer end; wherein each cable extends through the channel of a corresponding fan blade of the plurality of fan blades, wherein each cable is coupled at the outer end to the second end of the corresponding fan blade, and wherein each cable is coupled at the inner end to the inner anchor assembly of the rotatable hub assembly.