Fan blade flow enhancing device

Details Fan blade flow enhancing device Fan blade flow enhancing device

1997-06-09

1999-01-26

Verdier, Christopher

Fluid reaction surfaces (i.e., impellers)

Specific blade structure

Irregular, flanged or channel forming blade surface

416 62, 416210R, F04D 2938

Patent

active

058631828

ABSTRACT:
An attachment for improving the efficiency of a fluid circulation device such as a fan comprises a back connector portion for connecting to a fan blade and a lobe which protrudes from a leading edge of the fan blade. An impeller has a plurality of fan blades extending from a central hub, and the impeller is rotated by an electrical motor. The impeller is housed within a fan guard. As the impeller is rotated, the lobes operate to pick up air passing around the preceding blade and continue accelerating the air to increase efficiency and flow.

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