Patent ID: 6361270
Filing Date: 2002-03-26
Classification: F04D

Abstract:
A centrifugal turbo machine for increasing the pressure of a fluid, comprising:a) a housing having a fluid inlet port for receiving fluid at an initial pressure and an interior chamber defining a central axis; b) an impeller disk disposed within the interior chamber of the housing and mounted for rotation about the central axis, the impeller disk defining first and second inlet areas and having opposed, upper and lower disk surfaces, the upper surface having a plurality of circumferentially spaced apart channels formed therein for conducting fluid from the inlet areas in a radially outward direction upon rotation of the impeller disk so as to increase fluid pressure, wherein the plurality of circumferentially spaced apart channels are defined between the upper and lower disk surfaces; c) a first collector formed by the housing for receiving the fluid from the first inlet area via the channels at a first elevated pressure relative to the initial pressure; d) a second collector formed by the housing for receiving fluid from the second inlet area via the channels at a second elevated pressure relative to the first elevated pressure; e) a cross-over conduit formed by the housing for conducting fluid from the first collector to the second inlet area of the impeller disk; and f) an outlet formed by the housing for conducting fluid from the second collector.