AIR CLEANER Russian patent published in 2009 - IPC B01D46/00 

FIELD: engines and pumps.

SUBSTANCE: filter comprises housing with conical bottom furnished with orifice made in its lower part, purified air outlet union tufted with wire screen and provided with tapered nozzle that has grooves over its outer surface, purified air inlet unions representing tapered subsonic nozzles with curvilinear grooves on their inner surface and metal screens arranged on their inlet side. It includes also condensate trap arranged in aforesaid bottom hole and reflector baffle spring-loaded on aforesaid outlet union. Subsonic nozzle casings are made in bimetal and furnished with circular groove arranged on their inner surface, on the side of metal screens, and jointed to curvilinear grooves that feature a dower tail profile. Grooves on outer surface of outlet union tapered nozzle feature curvature of guides directed clockwise. Conical bottom inner surface helical grooves with curvature of their guides directed counter clockwise.

EFFECT: reduced power consumption.

4 dwg