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    • 9. 发明申请
    • SHROUDS FOR GAS TURBINE ENGINES AND METHODS FOR MAKING THE SAME
    • 燃气轮机发动机及其制造方法
    • WO99037888A1
    • 1999-07-29
    • PCT/US1999/001401
    • 1999-01-22
    • F01D5/22
    • F01D5/225F04D29/023F04D29/321F05D2300/522Y02T50/672Y02T50/673
    • A rotatable assembly for use with a gas turbine engine comprises a rotatable disk (29), and a plurality of blades (24) for affecting a flow of air passing thereover during use. The blades (24) are attached to the rotatable disk (29), and each one of the plurality of blades has a blade root and a blade tip (25) disposed opposite said blade root. A first ring (30) is disposed adjacent a first portion of each of the blade tips (25), the first ring (30) being in interfering contact with the first portion of each blade tip (25) when the rotatable disk is stationary. The interfering contact is preferably between about 0.01 inches and about 0.1 inches. The first ring can be provided over a portion of the blade tips or can extend from about the leading edge of each blade to about its trailing edge. A second ring in interfering contact with the blade tips can also be provided.
    • 与燃气涡轮发动机一起使用的可旋转组件包括可旋转盘(29)和用于在使用期间影响通过其中的空气流的多个叶片(24)。 叶片(24)附接到可旋转盘(29),并且多个叶片中的每一个叶片具有叶片根部和与叶片根部相对设置的叶片尖端(25)。 第一环(30)设置在每个叶片尖端(25)的第一部分附近,当可旋转盘静止时,第一环(30)与每个叶片尖端(25)的第一部分干涉接触。 干涉接触优选为约0.01英寸至约0.1英寸。 第一环可以设置在叶片尖端的一部分上,或者可以从每个叶片的前缘延伸到其后缘。 还可以提供与叶片尖端干涉接触的第二环。