AXIAL FAN Russian patent published in 2015 - IPC F04D29/26 

FIELD: engines and pumps.

SUBSTANCE: invention relates to axial fans. The fan contains an electric motor comprising a housing, a rotor rotating in the housing around a rotation axis (R), a shaft integrated with a rotor and with, at least, one end section, protruding from the housing. The fan contains a propeller fitted with a set of blades, a hub for mounting of blades containing a lower wall for connection with the shaft and, at least, one section along the perimeter stretching from the lower wall with formation of the base for connection of blades. The hub is formed by a rigid disk and contains multiple bases (11a) which are stretched from the lower wall for each blade with formation of the connecting surface for connection of each blade with the lower wall.

EFFECT: invention is aimed at creation of the fan minimising the deposition of dirt that results in propeller stop.

19 cl, 13 dwg