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公开(公告)号：US5503527A
公开(公告)日：1996-04-02
申请号：US329750
申请日：1994-12-19
CPC分类号： F01D5/20 , Y02T50/673
摘要： A gas turbine engine rotor blade includes an airfoil having first and second sidewalls joined together at leading and trailing edges. First and second tip walls extend from adjacent the leading edge along the respective first and second sidewalls to adjacent the trailing edge and are spaced apart to define a tip cavity therebetween. A first notch is disposed in the first tip wall adjacent to the leading edge for channeling into the tip cavity a portion of combustion gases flowable over the airfoil for reducing the heating effect of the gases on the blade tip. In a preferred embodiment, a second notch is disposed adjacent to the trailing edge for promoting flow through the tip cavity from the first notch.
摘要翻译： 燃气涡轮发动机转子叶片包括具有在前缘和后缘处连接在一起的第一和第二侧壁的翼型件。 第一和第二尖端壁沿着相应的第一和第二侧壁的相邻前缘延伸到邻近的后缘并且间隔开以限定其间的尖端腔。 第一凹口设置在与前缘相邻的第一末端壁中，用于将一部分可在翼型上流动的燃烧气体引导到尖端腔中，以减少气体在叶片尖端上的加热效应。 在优选实施例中，第二凹口设置成与后缘相邻，用于促进从第一凹口流过尖端空腔。
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公开(公告)号：US5458461A
公开(公告)日：1995-10-17
申请号：US354194
申请日：1994-12-12
IPC分类号： F01D5/18
CPC分类号： F01D5/186 , F05D2260/202
摘要： A wall adapted for use in a gas turbine engine between a first fluid and a second hotter fluid includes a first side over which is flowable the first fluid, and an opposite second side over which is flowable the second fluid. An elongate slot extends partly inwardly and perpendicularly from the second side toward the first side and is provided with the first fluid through a plurality of longitudinally spaced apart holes. The holes are aligned coplanar with the slot and longitudinally inclined to effect longitudinal overlapping of the first fluid inside the slot prior to discharge therefrom as a substantially continuous film.
摘要翻译： 适于在第一流体和第二热流体之间的燃气涡轮发动机中使用的壁包括可流过第一流体的第一侧和可流动第二流体的相对的第二侧。 细长槽从第二侧向第一侧部分地向内并垂直延伸，并且通过多个纵向间隔开的孔设置有第一流体。 孔与槽对齐并且纵向倾斜以在将槽排出之前的第一流体作为基本上连续的膜进行纵向重叠。
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公开(公告)号：US08500404B2
公开(公告)日：2013-08-06
申请号：US12770932
申请日：2010-04-30
IPC分类号： F01D5/18
CPC分类号： F01D5/186 , F05D2260/202 , F05D2270/172
摘要： A film cooling apparatus with a cooling hole (46) in a component wall (40). A first surface (42) of the wall is subject to a hot gas flow (48). A second surface (44) receives a coolant gas (50). The coolant flows through the hole, then downstream over the first surface (42). One or more pairs of cooperating electrodes (60-61, 62-63, 80-81) generates and accelerates a plasma (70) that creates a body force acceleration (71, 82) in the coolant flow that urges the coolant flow to turn around the entry edge (57) and/or the exit edge (58) of the cooling hole without separating from the adjacent surface (47, 42). The electrodes may have a geometry that spreads the coolant into a fan shape over the hot surface (42) of the component wall (40).
摘要翻译： 一种在组件壁（40）中具有冷却孔（46）的薄膜冷却装置。 壁的第一表面（42）经受热气流（48）。 第二表面（44）接收冷却剂气体（50）。 冷却剂流过孔，然后流过第一表面（42）的下游。 一对或多对配合电极（60-61,62-63,80-81）产生并加速等离子体（70），其产生在促使冷却剂流转向的冷却剂流中的体力加速度（71,82） 围绕冷却孔的入口边缘（57）和/或出口边缘（58），而不与相邻表面（47,42）分离。 电极可以具有将冷却剂扩散到组件壁（40）的热表面（42）上的扇形形状的几何形状。
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公开(公告)号：US20110268556A1
公开(公告)日：2011-11-03
申请号：US12770932
申请日：2010-04-30
IPC分类号： F04D29/58
CPC分类号： F01D5/186 , F05D2260/202 , F05D2270/172
摘要： A film cooling apparatus with a cooling hole (46) in a component wall (40). A first surface (42) of the wall is subject to a hot gas flow (48). A second surface (44) receives a coolant gas (50). The coolant flows through the hole, then downstream over the first surface (42). One or more pairs of cooperating electrodes (60-61, 62-63, 80-81) generates and accelerates a plasma (70) that creates a body force acceleration (71, 82) in the coolant flow that urges the coolant flow to turn around the entry edge (57) and/or the exit edge (58) of the cooling hole without separating from the adjacent surface (47, 42). The electrodes may have a geometry that spreads the coolant into a fan shape over the hot surface (42) of the component wall (40).
摘要翻译： 一种在组件壁（40）中具有冷却孔（46）的薄膜冷却装置。 壁的第一表面（42）经受热气流（48）。 第二表面（44）接收冷却剂气体（50）。 冷却剂流过孔，然后流过第一表面（42）的下游。 一对或多对配合电极（60-61,62-63,80-81）产生并加速等离子体（70），其产生在促使冷却剂流转向的冷却剂流中的体力加速度（71,82） 围绕冷却孔的入口边缘（57）和/或出口边缘（58），而不与相邻表面（47,42）分离。 电极可以具有将冷却剂扩散到组件壁（40）的热表面（42）上的扇形形状的几何形状。
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