VACUUM CLEANER Russian patent published in 2009 - IPC A47L9/00 

FIELD: individual supplies.

SUBSTANCE: invention relates to quite vacuum cleaner. The vacuum cleaner consists of a body inside of which a collector of dirt, fan motor and discharge port connected with the fan motor by flow system are placed. The cross section of the discharge port has a rectangular shape and its long is longer twofold of the short side. An outlet is made in one end of the discharge port towards the direction perpendicular to one of air flow inside of the outlet port. An acoustic dissipation element the width of which is less than the length of the short side of section in the outlet port is placed towards the direction of air flow. Portion of air discharged from the fan motor flows through the inner space of the discharge port in which the acoustic dissipation element is absent, and another portion of air flows through the acoustic dissipation element, thereafter air is blown out of the vacuum cleaner body through the outlet of the discharge port. A cover enclosing the collector is placed inside of the body of vacuum cleaner. The cover of the collector is joined with an engine casing providing flow of air discharged from the fan motor towards a bottom surface of the vacuum cleaner body. The discharge port is made by both side surfaces of the collector's cover and both side surfaces of the vacuum cleaner body.

EFFECT: reduction of noise made when air discharging due to smooth blow-off from the inside of vacuum cleaner.

12 cl, 9 dwg