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    Variable area nozzle assembly for an aircraft propulsion system
    66.
    发明授权
    Variable area nozzle assembly for an aircraft propulsion system 有权

    公开(公告)号：US12110839B1

    公开(公告)日：2024-10-08

    申请号：US18394655

    申请日：2023-12-22

    申请人： RTX Corporation

    发明人： Michael G. McCaffrey ,  Nathan L. Messersmith

    IPC分类号： F02K1/08 ,  F02K1/18 ,  F02K1/80

    CPC分类号： F02K1/08 ,  F02K1/18 ,  F02K1/805 ,  F05D2220/323 ,  F05D2240/1281

    摘要： A variable area nozzle assembly includes a fixed center plug, a fixed outer nozzle, and an inner nozzle. The fixed center plug includes a seal. The inner nozzle is disposed between the fixed center plug and the fixed outer nozzle. The inner nozzle includes an inner nozzle body. The inner nozzle body forms a primary duct between the inner nozzle and the fixed outer nozzle. The inner nozzle body forms a secondary duct and a gap. The gap is a nozzle outlet of the secondary duct. The secondary duct is disposed between the inner nozzle body and the fixed center plug upstream of the seal. The inner nozzle body forms a plurality of apertures. The inner nozzle body is translatable between a first position and a second position. In the first position, the primary duct has a first cross-sectional area and the plurality of apertures are isolated from the gap by the seal. In the second position, the primary duct has a second cross-sectional area and the plurality of apertures are connected in fluid communication with the gap.