CYCLONE-TYPE DUST CATCHER FOR VACUUM CLEANER Russian patent published in 2004 - IPC

FIELD: equipment for collecting of various kinds of contaminants, such as dust.

SUBSTANCE: cyclone-type dust catcher has cyclone casing, air inlet channel tangentially connected to mid portion of outer periphery of cyclone casing, dust discharge channels tangentially connected to both ends of outer periphery of cyclone casing, dust collector made in the form of dust box connected to dust discharge channels and adapted for collecting of dust delivered through dust discharge channels, and air discharge pipes adapted for discharge of air delivered into cyclone casing and for dividing of air into two or more parts. According to other version, cyclone dust catcher has cylindrical cyclone casing, air inlet channel arranged at one end of outer peripheral surface of cyclone casing and adapted for tangential sucking of air and contaminating substances into cyclone casing, air discharge pipe arranged in central part of cyclone casing and having two inlets and one outlet and adapted for discharge of air and contaminating substances sucked into cyclone casing, dust discharge channel connected to other end of outer peripheral surface of cyclone casing and adapted for discharge of contaminating substances separated by centrifugal force from air and contaminating substance mixture sucked into cyclone casing, and dust collector made in the form of dust box and detachably connected to dust discharge channel and adapted for collecting dust to be further removed. According to another version, cyclone dust catcher has cylindrical horizontal cyclone casing, air discharge channel tangentially connected to cyclone casing and adapted for directing of air flow, dust discharge channels arranged at both sides of cyclone casing, dust collectors made in the form of boxes and connected to dust discharge channels, and air discharge pipe arranged in central part of cyclone casing and equipped with two inlets open in opposite directions, and one outlet for discharge of air from cyclone casing. Air is introduced through two inlets and united into single flow. Cyclone dust catcher may be equipped with elongated cylindrical cyclone casing, air inlet channel adapted for directing of air tangentially to cyclone casing, dust discharge channels and dust collectors made in the form of boxes, connected to dust discharge channels and arranged at both ends of cyclone casing for collecting of dust type contaminants separated from air, and air discharge pipe equipped with at least two outlets for dividing of air flow into two parts.

EFFECT: reduced pressure losses and decreased air discharge force allowing finely dispersed dust to be prevented from discharge into ambient air, and increased effectiveness of dust removal.

19 cl, 14 dwg