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US 5,328,335 AGranted
Static efficiency enhancer for axial fans
AssigneeHudson Products Corporation
InventorRobert C. Monroe
Life of this patent
Estimating the term…
Abstract
A static efficiency enhancer for an axial fan having a hub and a plurality of blades extending radially outward from the hub, the enhancer comprising a plurality of airfoils connected to the hub and extending outwardly therefrom to provide additional air velocity at the periphery of the hub.
Claims2
A static efficiency enhancer for an axial fan having a hub and a plurality of blades extending radially outward from the hub, the fan having a static pressure, the enhancer comprising:
- a plurality of airfoils connected to and around the hub and extending outwardly therefrom to provide additional air velocity at the periphery of the hub, each airfoil being positioned between a pair of blades, the airfoils extending outwardly from the hub to about 25% to 30% of the fan diameter for achieving an increase in the static pressure of the fan ranging from 5% to 10%.
Dependencies are inferred from the claim text.