Patent ID: 6132182
Filing Date: 2000-10-17
Classification: F04D

Abstract:
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; anda fan subassembly comprising first and second integral fan subassembly units,the first integral fan subassembly unit including a first boss, a rotor and a plurality of vanes, said rotor having 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 second boss and a plurality of vanes and having a cutout portion for receiving said rotor, said rotor being coupled to said plurality of vanes of said second integral fan subassembly so that said vanes of said second integral fan subassembly rotate with said rotor,said first and second bosses configured to securely maintain said first and second integral fan subassembly units in alignment.