DUST COLLECTOR Russian patent published in 2001 - IPC

FIELD: apparatus for cleaning aspiration air in recirculation systems; removal of dust and chips from abrasive wheels and metal-working machines and units. SUBSTANCE: dust collector includes cyclone, centrifugal fan, filter and gills mounted between centrifugal fan and cyclone. Gills are made in form of two cylinders located concentrically; inner cylinder is provided with longitudinal gills which are open towards outer cylinder in way of rotation of air flow. Gills are bent tangentially. EFFECT: enhanced efficiency of air cleaning due to reduced contamination of dust collector filter. 2 cl, 3 dwg