CENTRIFUGAL FAN IMPELLER Russian patent published in 1994 - IPC

Abstract RU 2011893 C1

FIELD: manufacture of fans. SUBSTANCE: plate blades 5 of V-shaped impeller of centrifugal fan are secured on pins 4 received by seats of hub 1 of shaft 2 located inside blades 5 and secured at their heads. EFFECT: enhanced efficiency. 2 dwg

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RU 2 011 893 C1

Authors

Sazonov Igor' Zakharovich

Dates

1994-04-30—Published

1991-07-04—Filed