VACUUM CLEANER Russian patent published in 2010 - IPC A47L9/16 

FIELD: engines and pumps.

SUBSTANCE: proposed vacuum cleaner comprises electrically driven blower to generate suction force and dust separator consisting of casing top part and casing central part. Casing top part has suction opening for dusty air to be sucked there through by aforesaid electrically driven blower and swirled. Casing central part incorporates hollow cylinder of the first dust filter and has chamber formed on said first dust filter outer surface. Dust collector communicates with dust separator and is arranged at vacuum cleaner bottom to accumulate dust separated by dust separator. Vacuum cleaner has main and auxiliary ducts. Sucked and swirled air is forced down in first filter hollow cylinder and through the first dust filter to reach electrically driven blower via space formed on first filter outer surface. Air sucked from suction opening enters aforesaid space through first dust filter hollow cylinder and dust collector. Note here that dust collector and said space are intercommunicated. Proposed design allows a continuous swirling of airflow in the casing to remove dust in the filter even it gets stuck to it.

EFFECT: provision of sucking airflow.

8 cl, 50 dwg