FAN Russian patent published in 2014 - IPC F04D25/08 

FIELD: heating, ventilation.

SUBSTANCE: fan designed for creating the air flow and comprising a base with a hole for air inlet and a hole for air outlet, at that in the base there is an impeller and a motor for rotating the impeller to create an air flow from the hole for air inlet to the hole for air outlet. In addition, the fan comprises a vertical elongated annular nozzle comprising an inner channel having a hole for air inlet, designed for receiving air flow from the base, and an outlet part designed for outlet of the air flow, at that the nozzle defines the hole through which the air flow exiting from the outlet part, sucks the air outside the fan.

EFFECT: invention is aimed at creation of the fan with smaller radial size, without loss of capacity.

32 cl, 14 dwg