GAS TURBINE ENGINE COMBUSTOR BASKET WITH INVERTED PLATEFINS

摘要

A gas turbine engine combustor basket has nested outer and inner liners that are separated by a gap at their respective distal downstream ends for passage of cooling air between the liners. Radially inwardly projecting platefins formed on an inner circumferential surface of the outer liner maintain the cooling air passage gap. In some embodiments effusion cooling through holes are formed in the inner liner outer circumference, oriented in the air passage gap between the fins, so that cooling air passes through the effusion holes into the cooling air passage gap.

主权项

1. A gas turbine engine combustor basket apparatus, for passage of combustion gas there through, comprising:
nested outer and inner liners, respectively having axial length and radially spaced downstream distal ends, the respective liners forming a gap there between for passage of cooling air; and radially inwardly projecting platefins formed on an inner circumferential surface of the outer liner, for maintaining the cooling air passage gap.