DUST SEPARATION DEVICE AND VACUUM CLEANER WITH SUCH DEVICE Russian patent published in 2008 - IPC A47L9/16 

FIELD: dust separation device that may be mounted in installation chamber of vacuum cleaner with possibility of dismounting.

SUBSTANCE: device includes casing, cyclone unit arranged in casing and used for filtering contaminations of sucked air and for discharging cleaned air; dust trap arranged in parallel relative to cyclone unit in casing in such a way that it is surrounded by inner wall of casing and by outer wall of cyclone body and used for trapping contaminations separated from air by means of cyclone unit. Casing is semicircular one according to chamber of vacuum cleaner. Cyclone unit includes cyclone body forming cyclone chamber and having height less than height of casing; opening for air inlet and opening for discharging air, both openings are formed on lower surface of cyclone body. Dust trap is formed on outer peripheral surface of cyclone body and it surrounds cyclone body. Vacuum cleaner has housing and arranged in said housing installation chamber where dust separation device is mounted with possibility of dismounting in such a way that dust trap may use dead zone between cyclone unit and installation chamber.

EFFECT: increased volume of trapped dust, increased time period of vacuum cleaner operation without discharge of dust, enhanced efficiency of dust separation due to possibility of increasing diameter of cyclone unit at constant volume of dust trap promoting increase of centrifugal force acting in cyclone upon dust of cleaned air.

8 cl, 6 dwg