FAN Russian patent published in 2016 - IPC F04D29/66 

FIELD: personal use and household items.

SUBSTANCE: invention relates to a fan for generating an air current includes a body having an air inlet, and a nozzle connected to the body. Nozzle includes an interior passage for receiving an air flow from the body and an air outlet from which the air flow is emitted from the fan. Internal passage extends around the hole or channel through which outside air is sucked by the air emitted from the air outlet hole. Body has a channel with an air inlet hole and air outlet hole, it also contains an impeller that is installed in the channel and allows the movement of air flow through the channel, and a drive motor that drives the impeller. Noise-suppressing cavity is located under the air intake channel opening. Inlet opening of the cavity is located at, preferably aligned with, the air intake channel opening.

EFFECT: invention is aimed at reducing noise produced by the fan.

24 cl, 11 dwg