Turbine containment system

Rotary kinetic fluid motors or pumps – Runner with annular blade rows or fluid channels spaced on... – Including peripheral blade row

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Details

415 83, 415187, 415188, F01D 506, F01D 902

Patent

active

049175696

ABSTRACT:
A containment system for a radial flow turbine assembly includes a housing assembly, and a turbine rotor journalled for rotation about an axis and having a hub portion and a generally tapering disc portion extending radially outward from the hub portion. An annular nozzle assembly normally secured in the housing assembly against rotation forms a tapered rotor chamber within which the rotor rotates with minimum axial and radial clearance between the rotor and the chamber. A plurality of support struts extend axially inward from the nozzle assembly to a minimal axial and radial clearance with the hub portion of the rotor and forms a first stage of containment. The rotor must first break through the nozzle struts and separate the nozzle assembly. A rotatable nozzle assembly then absorbs some of the force by rotating in the housing assembly and containment ring. An armored containment ring stops the fragments that escape the nozzle assembly and finally, an outer housing provides still further containment.

REFERENCES:
patent: 797058 (1905-08-01), Hedlund
patent: 823526 (1906-06-01), Hachenberg
patent: 995803 (1911-06-01), Patsctke
patent: 1208762 (1916-12-01), Eklund
patent: 3241813 (1966-03-01), Von Flue et al.
patent: 3369737 (1968-02-01), Switzer et al.
patent: 4639188 (1987-01-01), Swadley

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