Contoured step entry rotor casing

Details Contoured step entry rotor casing Contoured step entry rotor casing

1988-08-12

1989-07-04

Garrett, Robert E.

Rotary kinetic fluid motors or pumps

Working fluid passage or distributing means associated with...

Vane or deflector

415220, 415914, F04D 2944

Patent

active

048446920

ABSTRACT:
A gas turbine engine having a turbine casing with a contoured entry. The contoured entry is located upon the housing such that upon assembly of the engine the contoured entry is located relatively directly prior to the turbine blades. The contoured entry is positioned relatively directly prior to a spacing between the tips of the turbine blades and the housing such that gases are directionally restricted away from the spacing and into the turbine blades.

REFERENCES:
patent: 1554052 (1925-09-01), Weidehoff
patent: 2566525 (1951-09-01), Kort
patent: 2650752 (1953-09-01), Hoadley
patent: 2735612 (1956-02-01), Hausmann
patent: 4311431 (1982-01-01), Barbeau
patent: 4606699 (1986-08-01), Hemsworth
patent: 4645417 (1987-02-01), Wisler
patent: 4662820 (1987-05-01), Sasada et al.
NASA Technical Paper 1032 "Cold-Air Performance of a 12.766-Centimeter-Tip-Diameter Axial-Flow Cooled Turbine", by Haas and Kofskey, Sep. 1977.

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