fan for boiler combustion gas seal with unacarcassa pressofusa acquiring little league of aluminium

摘要

This invention relates to a fan for gas boilers with proof combustion, comprising a centrifuge rotor housed inside a spiral made up of two die-cast aluminum semi-shells, of which one is externally provided with a bracket for the support and centering of the motor-rotor assembly made from one die cast piece together with its semi-shell. IMAGE