Regenerative rotodynamic machines

Details Regenerative rotodynamic machines Regenerative rotodynamic machines

1989-06-01

1990-11-27

Price, Carl D.

Rotary kinetic fluid motors or pumps

With means for re-entry of working fluid to blade set

Turbine regenerative pump

415 521, 4151701, F04D 500, F04B 500

Patent

active

049732200

ABSTRACT:
A regenerative rotodynamic compressor has a stator which defines, together with the periphery of an impeller, an annular flow channel of circular cross-section within which is a core ring having a circular cross-section coaxial with and of a diameter at least half the diameter of the flow channel cross-section. The impeller has a ring of curve aerodynamic blades around its periphery that project laterally into the flow channel up to the core ring. The stator, the impeller and blading, and the core ring are all made as die-cast components, the stator being divided on a stepped radial plane so as to the assemblable from two main die cast components and an insert ring, also die-cast, that in part defines the flow channel and is fitted between the two main components, being secured to one of them. Inwardly directed radial pegs on the core ring locate it in the flow channel by being clamped between the insert ring and the main stator component to which it is secured. Inlet and outlet baffles on the core ring extend into the inlet and outlet ports respectively, to guide fluid into and out of the machine with greater efficiency.

REFERENCES:
patent: 3782850 (1974-01-01), Egli et al.
patent: 4261685 (1981-04-01), Egli et al.
patent: 4279570 (1981-07-01), Egli et al.
patent: 4306833 (1981-12-01), Sixsmith et al.
patent: 4325672 (1982-04-01), Sixsmith et al.
patent: 4334821 (1982-06-01), Sixsmith et al.
patent: 4747267 (1988-05-01), Diele

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