Double wall turbine parts

Rotary kinetic fluid motors or pumps – Working fluid passage or distributing means associated with... – Specific casing or vane material

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Details

416 97R, F04D 2944

Patent

active

058203370

ABSTRACT:
A double wall hot gas path part for turbines, such as an airfoil, combustor, duct or shroud, comprises an outer skin and an inner support wall that are metallurgically bonded to one another. The double wall contains integral channels for passage of cooling air adjacent to the skin. The skin may be a metal alloy skin or a microlaminate structure, including microlaminate composite structures. Microlaminate composites typically have a lower density than that of the material used for the support wall, and a simplified internal geometry, which promote weight reductions in the parts and increases in engine operating efficiency.

REFERENCES:
patent: 5536146 (1996-07-01), Siga et al.
patent: 5601411 (1997-02-01), Usami et al.
patent: 5626462 (1997-05-01), Jackson et al.

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