DISCHARGE APPARATUS FOR ELECTRIC ENGINE AND VACUUM CLEANER COMPRISING THE SAME Russian patent published in 2007 - IPC A47L9/00 A47L9/22 

FIELD: mechanical engineering, in particular, discharge apparatus for electric engine creating suction force and having air outlet for vacuum cleaner.

SUBSTANCE: discharge apparatus has casing for accommodation of electric engine and essentially designed for at least enclosing electric engine. Casing has air discharge opening being in fluid communication with air outlet, discharge passageway defined at least partly by engine casing and being in fluid communication with air outlet opening, and porous anti-noise panel positioned within discharge passageway. At least first portion of air delivered from air outlet passes through porous anti-noise panel. One or each of other parts of electric engine casing has porous anti-noise part. At least one second air portion delivered from said air outlet passes through porous anti-noise part. Vacuum cleaner has housing with dust-catching chamber and chamber for accommodation of electric engine, brush unit connected to dust-catching chamber for providing flow-through communication and having inlet opening for dust-laden air, and electric engine positioned within chamber for electric engine and adapted for creating of suction force and equipped with air outlet. Electric engine housing essentially encloses at least electric engine and is equipped with air discharge opening for air discharged from air outlet. Electric engine housing defines discharge passageway wherein porous anti-noise panel is positioned.

EFFECT: increased efficiency owing to reduction of noise and loading of electric engine.

14 cl, 9 dwg