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Invention Grant
US07946808B2 Seal between rotor blade platforms and stator vane platforms, a rotor blade and a stator vane 有权
转子叶片平台和定子叶片平台之间的密封，转子叶片和定子叶片

Seal between rotor blade platforms and stator vane platforms, a rotor blade and a stator vane
Abstract:
A rotor and a stator assembly, wherein the rotor (30) comprises at least one stage of rotor blades (32) and the stator (34) comprises at least one stage of turbine stator vanes (36). The rotor blades (32) have aerofoils and platforms (42) and the turbine stator vanes (36) having aerofoils and platforms (48). A seal (43,45) is defined between the rotor blade (32) platforms (42) and the stator vane (36) platforms (48) wherein a portion (42B) of the rotor blade platforms (42) and/or a portion (48B) of the stator vane (36) platforms (48) comprise a shape memory alloy member or a bimetallic member. The shape memory alloy member, or bimetallic member, controls the flow of cooling air through the seals (43,45) allowing a greater cooling flow at higher temperatures than at lower temperatures.
Abstract(Chinese):

转子和定子组件，其中所述转子（30）包括至少一级的转子叶片（32），并且所述定子（34）包括至少一级的涡轮定子叶片（36）。 转子叶片（32）具有机翼和平台（42）和具有机翼和平台（48）的涡轮机定子叶片（36）。 在转子叶片（32）平台（42）和定子叶片（36）平台（48）之间限定了密封件（43,45），其中转子叶片平台（42）的一部分（42B）和/ 定子叶片（36）平台（48）的外壳（48B）包括形状记忆合金构件或双金属构件。 形状记忆合金构件或双金属构件控制通过密封件（43,45）的冷却空气的流动，允许在比较低温度更高的温度下更大的冷却流动。

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