CYCLONE DUST-ENTRAPPING DEVICE (VERSIONS) Russian patent published in 2008 - IPC A47L9/16 

FIELD: vacuum cleaners.

SUBSTANCE: proposed cyclone dust-entrapping device for vacuum cleaners makes it possible to reduce pressure losses in vacuum cleaner and maintain constant suction force without jump reduction. Device contains housing with air intake, cyclone unit made at one side of cyclone unit and designed for accumulating separated duct, and air outlet through which air cleaned from duct is let out. Housing is provided with cover in upper part installed to form duct channel between cyclone unit and dust trap unit. Outlet cover is installed for opening on lower part of housing. Device is furnished with filtering unit installed for removal on side of housing where air outlet is made which provides filtering out of fine dust from air passing through air outlet. Cyclone unit contains intake guide tube of spiral curved form which directs all outside air sucked through air intake to cyclone unit. Air intake is connected to intake guide tube to pass air sucked through air intake to cyclone unit. According to other design version, device contains housing with front and rear parts, air intake arranged in housing in center of front part to take in outside air, cyclone unit in housing at first side of air intake designed for centrifuging dust from outside air, duct trap unit arranged in housing at second side of air intake and designed for collecting dust separated from air, air outlet arranged in rear part of housing through which air cleaned from duct is let out, housing cover arranged on its upper part forming channel for dust between cyclone unit and dust trap unit and intake guide tube of spiral curved form connected to air intake to provide delivery of outside air to cyclone unit.

EFFECT: reduced pressure losses, provision of constant suction pressure.

20 cl, 8 dwg