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    • 3. 发明授权
    • Convergent divergent nozzle with slot cooled nozzle liner
    • 具有狭缝冷却喷嘴衬管的收敛发散喷嘴
    • US07757477B2
    • 2010-07-20
    • US11676595
    • 2007-02-20
    • Debora F. KehretJorge I. Farah
    • Debora F. KehretJorge I. Farah
    • F02K99/00F02K1/00B05B1/24B63H11/10
    • F02K1/1223F02K1/822Y02T50/675
    • A nozzle system includes a multitude of circumferentially distributed convergent flaps and seals that circumscribe an engine centerline. A cooling liner body cooperates with a cooling liner panel attached to respective convergent flaps and convergent seals to define an annular cooling airflow passageway which is movable therewith. Each cooling liner panels includes an arcuate cooling liner leading edge with a multiple of openings 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.
    • 喷嘴系统包括大量周向分布的会聚翼片和密封件,其围绕发动机中心线。 冷却衬套主体与连接到相应的会聚翼片和会聚密封件的冷却衬套板配合,以限定可随之移动的环形冷却气流通道。 每个冷却衬板包括具有多个开口的弧形冷却衬套前缘,以在其“冷侧”和“外侧”表面之间分配冷却气流。 通过这种背面冷却,在弧形冷却衬套前缘和主冷却衬套主体之间的附接界面处控制热梯度。