Patterned porous laminated material

Details Patterned porous laminated material Patterned porous laminated material

1979-06-13

1981-12-01

Garrett, Robert E.

Power plants

Combustion products used as motive fluid

Combustion products generator

F02C 718

Patent

active

043029400

ABSTRACT:
A transpiration air cooled combustor for use with gas turbine engines includes an annular wall of laminated readily deformable metal having plural layers of diffusion bonded material in a combustor wall with inner and outer surfaces; each of the inner and outer surfaces has pores formed therein by a process such as photoetching to provide numerous inlets on the outer surface of the combustor wall for directing cooling air through the wall to a plurality of outlets in the inner surface for flow of cooling air across the inner surface; and wherein at least two surfaces of the layers includes a plurality of continuously formed curvilinear grooves communicating with the inlets and outlets and also intersecting one another to form crossover passages between the grooves for communicating the inlets and outlets and wherein the curved grooves serve to produce minimal surface distortion and stretch marks across curvilinear portions of the outer wall portion of the combustor assembly to prevent formation tears therein whereby the combustor construction has a uniform flow of coolant from the exterior thereof to the interior thereof throughout the full surface extent of the wall of the combustor.

REFERENCES:
patent: 4004056 (1977-01-01), Carroll
patent: 4168348 (1979-09-01), Bhangu et al.

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