F - Mech Eng,Light,Heat,Weapons – 23 – R
Patent
F - Mech Eng,Light,Heat,Weapons
23
R
60/174
F23R 3/60 (2006.01) F23R 3/00 (2006.01)
Patent
CA 1134631
D-3613 IMPROVED POROUS LAMINATED MATERIAL C-3162 Abstract of the Disclosure 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 preformed hole patterns therein so as to maintain full coolant flow from exteriorly of the porous laminated fabrication to an inner surface thereon.
353867
General Motors Corporation
Gowling Lafleur Henderson Llp
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