Convergent divergent nozzle with slot cooled nozzle liner

摘要

A nozzle system (10) includes a multitude of circumferentially distributed convergent flaps (12) and seals (23) that circumscribe an engine centerline (A). A cooling liner body (16) cooperates with a cooling liner panel (36, 38) attached to respective convergent flaps (12) and convergent seals (23) to define an annular cooling airflow passageway (28) which is movable therewith. Each cooling liner panel (36, 38) includes an arcuate cooling liner leading edge (42, 44) with a multiple of openings (48) to distribute cooling airflow over both the inner "cold-side" and outer "hot-side" surfaces thereof. Through this backside cooling, thermal gradients are controlled at the attachment interface between the arcuate cooling liner leading edge and the main cooling liner body.