Cooled shroud for a gas turbine engine

Details Cooled shroud for a gas turbine engine Cooled shroud for a gas turbine engine

1980-06-17

1982-03-09

Casaregola, Louis J.

Rotary kinetic fluid motors or pumps

With diversely oriented inlet or additional inlet for...

415200, 415214, F02C 712

Patent

active

043186661

ABSTRACT:
A cooled shroud for a gas turbine engine comprises an annular metallic supporting member having holes therethrough for the flow of cooling air and a layered coating on its inner face. The layered coating comprises a first layer of porous material through which the cooling air may permeate, and a second layer of impermeable ceramic covering all but selected areas of the surface of the first layer. In this way the cooling air is largely constrained to flow along the porous material to provide good cooling with relatively low air flow.

REFERENCES:
patent: 2930521 (1960-03-01), Koehring
patent: 3423070 (1969-01-01), Corrigan
patent: 3728039 (1973-04-01), Plemmons et al.
patent: 3825364 (1974-07-01), Halila et al.
patent: 4199300 (1980-04-01), Tubbs

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