Power plants – Combustion products used as motive fluid – Combustion products generator
Patent
1979-10-17
1981-10-27
Garrett, Robert E.
Power plants
Combustion products used as motive fluid
Combustion products generator
219101, F02C 718
Patent
active
042966060
ABSTRACT:
A porous, laminated metal fabrication includes first and second porous walls, each having laminae therein with a free edge portion across at least one end thereof; each of the first and second walls including an outer lamina with a first preformed hole pattern therein, each of the first and second walls further including an inner lamina having a second preformed hole pattern therein combined to form a tortuous air flow path through the first and second walls for cooling the metal therein; and each of the lamina in the laminae including a solid metal annulus therein of uniform density for welding; the annulus being located between the hole patterns and the free edge portions to define a weldable region between the first and second walls having an axial width limited to the axial width of the solid metal annulus whereby air flow through the first and second walls will flow freely throughout the full extent of all the performed hole patterns therein so as to maintain full coolant flow from exteriorly of the porous laminated fabrication to an inner surface thereon.
REFERENCES:
patent: 2999146 (1961-09-01), Kaplan et al.
patent: 3584972 (1971-06-01), Bratkovich et al.
patent: 4180972 (1980-01-01), Herman et al.
patent: 4213024 (1980-07-01), Costley
Nealy, D. A. et al., "Evaluation of Laminated Porous Wall Materials for Combustor Liner Cooling," Journal of Engin. for Power, Apr., 1980, pp. 268-276.
Evans J. C.
Garrett Robert E.
General Motors Corporation
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