Abstract: A fan rotor comprises a housing defining an interior air chamber and includes air inlet openings and an air outlet opening. A rotor blade is rotatably mounted within the chamber and includes a polygonal rotor plate disposed in parallel relation to the sidewalls of the housing and a plurality of channel-shaped blade members secured in perpendicular relation to the perimeter of the rotor plate. The rotor assembly is mounted upon a drive shaft which is rotatably connected to a power source. During rotation of the rotor assembly, air is drawn into the chamber through the inlet openings at a first velocity and is expelled through the outlet opening at a second increased velocity. The increased pressure upon the blade members helps to hold the blades in place upon the perimeter of the rotor plate. A plurality of arcuate air deflection shields extend between the side walls of the housing so as to form a cylindrical cage within the chamber for directing the flow of the air therein.

Abstract: A fan rotor means comprising a plurality of blade elements rotatably mounted within a cylindrical shaped cage of L-shaped baffle members attached to and extending between a pair of ring shaped rims. The blade elements are securely attached at one end to a circular plate rotatably mounted within the cylindrical cage with the blade elements extending from the inside circumference of the rims toward the longitudinal center line of the cage and terminating prior to the center line so as to form a cylindrical bore within the cage. The cylindrical cage and blade members are mounted within the center chamber of a three chamber support structure with the rims securely attached to the interior walls of the center chamber. Bushings containing air inlet apertures are located within the walls such that the air inlets are in alignment with the bore and provide passageways between the outer chambers and the bore.