Fan

Details Fan Fan

F - Mech Eng,Light,Heat,Weapons

04

D

F04D 25/08 (2006.01) F04D 19/00 (2006.01) F04D 29/52 (2006.01) F04D 29/54 (2006.01)

Patent

CA 2176194

An axial flow fan primarily for use in harsh and/or corrosive environments such as agricultural barns has a one-piece plastic moulded housing which defines an air flow passageway, and a direct drive fan assembly mounted in the air flow passageway by means of a novel motor mount. The mount includes at least three radially disposed support arms of equal length which maintain the fan assembly in the center of the air flow opening despite distortions in the housing that might occur for example due to temperature changes. Each support arm is a thin and flat plate disposed edge on to the air flow so as to minimize resistance. The air flow opening is smoothly contoured to define a convergent conical inlet section and a divergent conical outlet section for improved efficiency of air flow.

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