FAN Russian patent published in 2018 - IPC F04D25/08 

FIELD: ventilation.

SUBSTANCE: invention relates to a fan for air flow creation containing a body that comprises inlet air duct and nozzle connected to the body. Nozzle has inner passage to receive air flow from the body and air outlet hole through 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, and also includes impeller installed in the channel and allowing air flow through the duct and electric motor driving 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: fan is proposed to create airflow.

26 cl, 11 dwg