Compressor bleed system
    2.
    发明授权
    Compressor bleed system 失效
    压缩机排气系统

    公开(公告)号:US4008977A

    公开(公告)日:1977-02-22

    申请号:US614807

    申请日:1975-09-19

    IPC分类号: F02C7/18 F04D27/02 F01D25/12

    摘要: Methods and apparatus for flowing cooling air from the compressor section to the turbine section of a gas turbine engine are disclosed. Cooling air from the compressor is flowed radially inward through the compressor drum cavity and thence axially rearward along the rotor shaft to the turbine. Vortex pressure losses in the drum cavity are diminished to enable effective utilization of a lower pressure, lower temperature cooling air source. The use of air from the lower pressure, lower temperature source improves the overall engine operating efficiency while maintaining turbine cooling rates which are consonant with durable operation of the engine.

    摘要翻译: 公开了将冷却空气从压缩机部分流向燃气涡轮发动机的涡轮部分的方法和装置。 来自压缩机的冷却空气径向向内流过压缩机鼓空腔,从而沿着转子轴向后流动到涡轮机。 鼓腔中的涡流压力损失减小,能够有效利用较低压力,较低温度的冷却空气源。 来自较低压力,较低温度源的空气的使用提高了整体发动机的运行效率,同时保持了与发动机的耐用操作相符合的涡轮冷却速率。