Ventilating suction and exhaust fan device of sirocco type

Details Ventilating suction and exhaust fan device of sirocco type Ventilating suction and exhaust fan device of sirocco type

F - Mech Eng,Light,Heat,Weapons

04

D

230/10

F04D 17/12 (2006.01) F04D 17/04 (2006.01) F04D 25/16 (2006.01)

Patent

CA 1046030

A VENTILATING SUCTION AND EXHAUST FAN DEVICE OF SIROCCO TYPE Abstract of the Disclosure: A ventilating suction and exhaust fan device of Sirocco type comprising a casing of cylindrical shape, a partition plate mounted within the casing and extending in a horizontal plane passing through a central axis of the casing and having a rectangular opening formed therein, a cylindrical impeller of Sirocco type rotatably mounted in said opening of the partition plate coaxially with respect to the casing, said impeller comprising a central vertical partition disc, a first cylindrical impeller section for exhaustion of air arranged on one side of the disc and a second cylindrical impeller section for suction of air arranged on the other side of the disc, first hood means for preventing the first impeller section from contacting the suction air, second hood means for preventing the second impeller section from contacting the exhaust air, and guide means for converting centrifugal flows generated by the impeller sections to axial flows. - 1 -

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