MULTICYCLONE DUST EXTRACTOR Russian patent published in 2008 - IPC A47L9/16 

FIELD: personal demand and household items.

SUBSTANCE: multicyclone dust extractor is used for air cleaning in a vacuum cleaner and includes a cyclone body, a top cover and a vent cap. The cyclone body contains the main cyclone and several cyclone cones communicating with the main cyclone, which are fixed around its bottom and capable of injecting air through their bottoms. Each cyclone body is shaped as an inverse cone, with its diameter decreasing when approaching its top end. The top cover is set on the upper part of the cyclone body and has an inlet air line injecting air to the main cyclone. The vent cap is set on the lower part of the main cyclone and used to catch and vent air coming from the cyclone cones. Most of air injected into the upper part of the main cyclone through the inlet air line goes to the lower part of the main cyclone without change of direction to the upward, and then, goes to the said several cyclone bodies.

EFFECT: reduced of losses of drawing-in energy; decreased dust chamber total height; possibility to use dust chamber in vacuum cleaners of small dimension.

8 cl, 6 dwg