Integrated motor and blower apparatus

A blower unit, comprising:

• an elongate main mounting member;
• a stator comprising a stator core and stator windings, said stator being secured to said main mounting member;
• and
• a fan assembly comprising first and second integral fan subassembly units,
• the first integral fan subassembly unit including a rotor and a plurality of vanes, said rotor comprising a substantially cylindrical iron ring, a magnetic portion having a substantially cylindrical shape, said magnetic portion being secured within an inner diameter of said iron ring and defining a rotor bore, said stator being located in said rotor bore and concentric with respect to said rotor, said rotor being coupled to said plurality of vanes of said first integral fan subassembly so that said vanes of said first integral fan subassembly rotate with said rotor,
• said second integral fan subassembly unit comprising a plurality of vanes and having a cutout portion for receiving said rotor, said rotor being coupled to said plurality of vanes so that said vanes of said second integral fan subassembly rotate with said rotor, and
• a shroud for partially enclosing said plurality of vanes of the first and second integral fan subassembly units.