CENTRIFUGAL BLOWER, PRIMARILY, FOR EXHAUST HOODS AND FLUE EXHAUST DEVICES Russian patent published in 2011 - IPC F04D29/42 

FIELD: engines and pumps.

SUBSTANCE: additionally, centrifugal blower comprises flow separator. Note here that free edge of at least one flow separator extension has at least first and second curved sections extending each other with curvature radii of opposite sign to form point of flexure in joint zone, said extension being located in lateral projection of second plane perpendicular to second axis. Note also that housing half-ring, closest to midplane, features convex curvature with relevant curvature radius with its center located on section of second plane of coordinates incorporating second axis.

EFFECT: separation of liquid vapors, reduced noise.

18 cl, 6 dwg