CENTRIFUGAL FAN IMPELLER Russian patent published in 1994 - IPC

Abstract RU 2009378 C1

FIELD: fans. SUBSTANCE: impeller has blades 1 and cylindrical perforated partition 2 located between lifting and covering disks 3, 4. The partition is located on diameter d smaller than the outer diameter D of blades 1. EFFECT: improved structure. 2 dwg

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RU 2 009 378 C1

Authors

Sazonov Igor' Zakharovich

Dates

1994-03-15—Published

1992-01-08—Filed