Film cooled slotted wall

Fluid reaction surfaces (i.e. – impellers) – With heating – cooling or thermal insulation means – Changing state mass within or fluid flow through working...

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60755, 60757, 416 96R, F01D 518

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active

056605250

ABSTRACT:
A wall adapted for use in a gas turbine engine between a first and a hotter second fluid includes a first side over which is flowable the first fluid, and an opposite second side over which is flowable the second fluid. An elongate slot extends inwardly from the second side and is disposed in flow communication with a plurality of longitudinally spaced apart holes extending inwardly from the first side. The holes are disposed at a compound angle relative to the second side for discharging the first fluid obliquely into the slot and at a shallow discharge angle from the slot along the second side. The holes are also disposed in converging pairs to impinge together in the slot the first fluid channeled therethrough. In a preferred embodiment, the slot has an aft surface including a plurality of longitudinally spaced apart grooves extending from the holes to the wall second side.

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U.S. Patent Appln. Ser. No. 07/733,892; filed Jul. 22, 1991.
U.S. Patent Appln. Ser. No. 07/968,544; filed Oct. 29, 1992.
U.S. Patent Appln Ser. No. 08/012493; filed Jan. 25, 1993.

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