Exhaust fan assembly having a windband

Details Exhaust fan assembly having a windband Exhaust fan assembly having a windband

F - Mech Eng,Light,Heat,Weapons

04

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F04D 29/42 (2006.01) F04D 25/08 (2006.01) F04D 29/44 (2006.01) F23J 11/02 (2006.01) F23L 17/00 (2006.01) F24F 7/02 (2006.01) F24F 7/06 (2006.01)

Patent

CA 2493651

An exhaust fan assembly is provided for expelling contaminated air from a building. The assembly includes fan housing connected to the building via a duct. The fan housing contains a fan the draws air from the building through the duct. An extension is mounted to the outlet end of the fan housing, and has a cylindrical upper end connected to a nozzle. A windband is connected to the upper end of the nozzle, and provides an air entrainment path that allows ambient air to mix with the exhaust air prior to exiting through an exhaust fan assembly outlet.

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