Extended venturi fan ring

Details Extended venturi fan ring Extended venturi fan ring

F - Mech Eng,Light,Heat,Weapons

28

F

F28F 9/22 (2006.01) F04D 19/00 (2006.01) F04D 29/00 (2006.01)

Patent

CA 2555823

A high efficiency, low-noise fan ring for use with a heat exchanger having an annular fan ring body attached to a coaxial mounting ring. The fan ring body extends in a substantially perpendicular direction from an inner periphery of the mounting ring. The annular body has a circumferential periphery profile defined by a plane coincident the center axis and an firmer surface of the fan ring body. The periphery profile includes a transition portion and a curved portion. The transition portion extends in a substantially perpendicular direction from the mounting ring and attaches to an end of the curved portion. In order to reduce noise and increase uniformity of airflow, the length of the curved portion of the periphery profile is sufficient long to reduce recirculation of air entering the fan ring body.

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