CYCLONE-TYPE DUST REMOVAL APPARATUS FOR VACUUM CLEANER Russian patent published in 2005 - IPC

FIELD: cyclone-type dust removal equipment for separating and collecting of dust and contaminating substances from air containing dust and contaminating substances by way of centrifugal force created by air vortex.

SUBSTANCE: apparatus has cyclone comprising main cylindrical housing with air admission opening provided in its side surface and air exit opening provided in its upper surface. Cyclone is adapted for creating of air vortex flow from air flow containing contaminating substances, said air flow being drawn through air admission opening. Dust collecting reservoir is detachably connected to cyclone and adapted for receiving of dust and contaminating substances separated from air by way of centrifugal force of air vortex flow generated in cyclone. Grid located within cyclone in the vicinity of air exit opening is designed for preventing dust and contaminating substances separated from air flow from passage through air exit opening. Apparatus is further provided with grid carrier means adapted to support grid for rotation thereof by way of vortex air flow in cyclone. Grid carrier means has carrier member located centrally of air exit opening of main cylindrical housing by means of multiplicity of ribs protruding from internal surface of air exit opening, and rotating member having first end supported for rotation by means of bearing introduced therein, and second end extending through grid and attached to lower part of grid.

EFFECT: increased efficiency in removal of dust and contaminating substances from air flow and maximal separation of purified air from contaminated air.

8 cl, 7 dwg