Grain aeration fan

Details Grain aeration fan Grain aeration fan

F - Mech Eng,Light,Heat,Weapons

26

B

230/18, 34/51

F26B 19/00 (2006.01) F04D 19/02 (2006.01) F26B 21/00 (2006.01) F26B 25/06 (2006.01)

Patent

CA 1199170

ABSTRACT OF THE DISCLOSURE A grain aeration fan for blowing air into a perforated tube or the like in a storage bin includes a pair of counter-rotating impellers mounted on opposite sides of the centre in a cylindrical casing at a distance of 1 - 3 inches apart. The impellers, which are driven by separate motors, include the same number of blades, which are oppositely pitched. The air- flow through the casing is higher than the total airflow which would be produced by the two impellers operating independently of each other.

417262

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