Patent ID: 6779964
Filing Date: 2004-08-24
Classification: F01D,F04D,Y10S

Abstract:
An impeller assembly, comprising:(a) a central hub; (b) a first reinforcing backing plate fixedly connected to the central hub; (c) a stacked array of parallel discs fixedly connected to the first reinforcing backing plate, wherein the each disc possesses a central aperture, and wherein the discs are inter-spaced along a parallel axis; (d) at least two rods to fixedly connect the central hub, the first and second reinforcing backing plates and the stacked array of discs; (e) a support frame attached to one end of the rods; (f) a second reinforcing backing plate fixedly attached to the stacked array of parallel discs, wherein the second reinforcing backing plate possesses a central aperture; and (g) a central cavity formed by the central apertures, the central cavity being devoid of a shaft, whereby, upon radial movement of the central hub, a fluid flows through the central apertures of the second reinforcing backing plate and the stacked array of discs and the spaces between the discs.