Thermally valved cooling system for exhaust nozzle systems
    2.
    发明授权
    Thermally valved cooling system for exhaust nozzle systems 失效
    排气喷嘴系统的热阀式冷却系统

    公开(公告)号:US5131222A

    公开(公告)日:1992-07-21

    申请号:US621695

    申请日:1990-11-28

    IPC分类号: F02K1/82

    CPC分类号: F02K1/822 Y02T50/675

    摘要: Flow rate of coolant air is increased upon elevated nozzle gas temperatures to increase nozzle liner cooling effect. A hot side curved plate is superposed over a cold side curved plate which overlays a pressurized cooling air cavity. First and second sets of apertures are formed through the first and second plates respectively. At low temperature operation, the gap between the plates is small and the staggering of the apertures restricts the flow rate of cooling gas through the plates. As temperatures rise, the hot side plate thermally expands and the gap between the plates increases to reduce the mechanical impedance effect of the staggering and to thus increase coolant flow rates.

    摘要翻译: 在喷嘴气体温度升高时,冷却剂空气的流量增加,从而增加喷嘴衬套的冷却效果。 热侧弯曲板叠加在覆盖加压冷却空气腔的冷侧弯曲板上。 分别通过第一和第二板形成第一和第二组孔。 在低温运行时,板间的间隙很小,孔的交错限制了冷却气体通过板的流量。 随着温度升高,热侧板热膨胀并且板之间的间隙增加以减小交错的机械阻抗效应并因此增加冷却剂流速。

    Gas turbine nozzle construction
    3.
    发明授权
    Gas turbine nozzle construction 失效
    燃气轮机喷嘴结构

    公开(公告)号:US5388765A

    公开(公告)日:1995-02-14

    申请号:US510758

    申请日:1990-04-18

    IPC分类号: F02K1/12 F02K1/82 F02K1/38

    CPC分类号: F02K1/12 F02K1/822 Y02T50/675

    摘要: A planar top plate (32) has film cooling slots (34) therein. A rigid honeycomb structure (38) sealingly joins this top plate with bottom plate (36). Cooling air distributed by openings (50) impinges on the top plate and passes through metering openings (48) to the slots. A flat wall surface with reduced aerodynamic losses is maintained and the uniform support of the top plate avoids local distortion which would crack any heat resistant coating applied thereto.

    摘要翻译: 平面顶板(32)中具有薄膜冷却槽(34)。 刚性蜂窝结构(38)将该顶板与底板(36)密封连接。 由开口(50)分布的冷却空气撞击在顶板上并通过计量开口(48)到槽。 保持具有降低的空气动力学损失的平坦壁表面,并且顶板的均匀支撑避免了局部变形,这会使施加到其上的任何耐热涂层开裂。

    Surface cooling system
    5.
    发明授权
    Surface cooling system 失效
    表面冷却系统

    公开(公告)号:US4800718A

    公开(公告)日:1989-01-31

    申请号:US946541

    申请日:1986-12-24

    摘要: A cooling system for providing a layer of relatively cool gas (28) adjacent the surface of a duct (24) carrying a flow of relatively hot gas (22) includes an elongated louver nozzle (32), an elongated plenum (40) and one or more crosswise dividers (42) for separating the plenum and nozzle into a plurality of individual segments (40, 40a; 32, 32a) having sized supply orifices (44, 44a) disposed therein.

    摘要翻译: 用于提供相邻冷气体(28)的冷却系统,所述冷却气体邻近运送相对热气体(22)的管道(24)的表面,包括细长百叶窗喷嘴(32),细长的气室(40)和一个 或更多的横向分隔件(42),用于将集气室和喷嘴分离成具有设置在其中的具有尺寸的供给孔(44,44a)的多个单独段(40,40a,32,32a)。