Rotating turbine stator

Details Rotating turbine stator Rotating turbine stator

1982-11-01

1984-06-19

Marcus, Stephen

Rotary kinetic fluid motors or pumps

Plural runners having different type flow paths

415146, 415147, 415211, 415219A, F01D 900

Patent

active

044551215

ABSTRACT:
Hot spots in the first stage turbine nozzles of small and medium sized engines are eliminated by spinning the nozzle assembly which consists of an annular hub circumscribed by a nozzle diaphragm having an inner and outer shroud ring between which are a multiplicity of symmetrically positioned vanes of airfoil design. Power to turn the nozzle assembly is obtained by connecting it to a rotary-type, vaned diffuser stage which lies in radial alignment with the impeller of the engine compressor. The rotary diffuser and nozzle combination is configured to turn at 50-1,000 rpm enabling the combined assembly to be mounted on unlubricated ceramic bearings.

REFERENCES:
patent: 1097729 (1914-05-01), Rice
patent: 2594042 (1952-04-01), Lee
patent: 3006603 (1961-10-01), Caruso
patent: 3208389 (1965-09-01), Stefan
patent: 3722215 (1973-03-01), Zhdanov
patent: 3868196 (1975-02-01), Lown
patent: 3941501 (1976-03-01), Shank
patent: 4151709 (1979-05-01), Mellonian et al.
patent: 4264272 (1981-04-01), Weiler

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