MULTICYCLONE DUST-COLLECTING UNIT FOR VACUUM CLEANER Russian patent published in 2008 - IPC A47L9/16 

FIELD: personal effects.

SUBSTANCE: invention refers to multicyclone dust-collecting unit for vacuum cleaner. Multicyclone dust-collecting unit incorporates of two cyclone units and element for emission of contaminating units. The first cyclone unit forms airstream of contaminated air, twisting upwards. Partially decontaminated air from the first cyclone unit is moved to the lower part of the second cyclone unit via air-transferring element, where it forms another airstream, twisted upwards for axifugal separation of small contaminating particles. The second cyclone unit is located above the first cyclone unit. The element of contaminating particle emission is installed inside the air-transferring element and designed for emission of small contaminating particles to upper part of air-transferring element. Additionally, the second cyclone unit is installed inside the first cyclone unit, with lower surfaces of both units being located in one horizontal plane. Also, the multicyclone dust-collecting unit contains waste collection chamber, which envelopes the housing of the first cyclone unit and serves to collect contaminating particles emitted from the first cyclone unit housing.

EFFECT: creation of mutlicyclone dust-collecting unit with enhanced operational characteristics and improved environmental protection system.

12 cl, 7 dwg