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    • 4. 发明申请
    • EJECTOR COOLED NOZZLE
    • 喷嘴冷却喷嘴
    • US20050235628A1
    • 2005-10-27
    • US10828643
    • 2004-04-21
    • Darrell Senile
    • Darrell Senile
    • B64D33/04F02K1/00F02K1/12F02K1/36
    • F02K1/1292B64D33/04F02K1/1223F02K1/36F05D2260/20F05D2260/601Y02T50/675
    • A gas turbine engine exhaust nozzle includes a divergent section located aft of a convergent section and a throat therebetween. An exterior fairing is spaced radially outwardly of the divergent section. An ejector cooling air flowpath leads from an ejector cooling air inlet in an aft portion of the fairing to a cooling air ejector in the nozzle. An annular nozzle plenum may be disposed between the divergent section of the nozzle and the external fairing and be part of the ejector cooling air flowpath between the ejector cooling air inlet and the ejector. A plurality of divergent flaps and divergent seals in the divergent section may employ cooling air passages, such as slots, to serve as the ejector. The fairing may include a plurality of circumferentially adjacent exterior flaps and exterior seals and employ truncated ends of or apertures in the exterior seals as the ejector cooling air inlet.
    • 燃气涡轮发动机排气喷嘴包括位于其间的收敛部分和喉部后方的发散部分。 外部整流罩在发散部分的径向外侧间隔开。 喷射器冷却空气流路从整流罩的后部的喷射器冷却空气入口引导到喷嘴中的冷却空气喷射器。 环形喷嘴增压室可以设置在喷嘴的发散部分和外部整流罩之间,并且是喷射器冷却空气入口和喷射器之间的喷射器冷却空气流路的一部分。 发散部分中的多个发散的翼片和发散的密封件可以使用诸如槽的冷却空气通道来用作喷射器。 整流罩可以包括多个周向相邻的外部翼片和外部密封件,并且在外部密封件中使用截顶端或孔口作为喷射器冷却空气入口。