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    • 9. 发明授权
    • Airfoil assembly including vortex reducing at an airfoil leading edge
    • 翼型组件包括在翼型前缘处的涡流减少
    • US09091180B2
    • 2015-07-28
    • US13552708
    • 2012-07-19
    • David J. WiebeBruce L. SmithMatthew D. Montgomery
    • David J. WiebeBruce L. SmithMatthew D. Montgomery
    • F01D25/00F01D9/06F01D5/18F01D5/14
    • F01D25/00F01D5/145F01D5/18F01D9/041F01D9/06F05D2240/80Y10T29/49234
    • An airfoil assembly including an endwall and an airfoil extending from the into a gas flow path. The endwall includes upstream and downstream edges, and is defined on a platform structure having a front surface extending radially in a direction of a thickness of the platform structure. At least one fluid injection passage extends through the platform structure in a direction from the upstream edge toward the downstream edge of the endwall. The fluid injection passage has an outlet opening defined at the endwall and an inlet opening in fluid communication with a pressurized fluid source. The fluid injection passage extends at a shallow angle relative to a plane of the endwall wherein the fluid injection passage defines a passage axis passing through the front surface and the endwall for effecting energization of a boundary layer between the outlet opening and the airfoil leading edge.
    • 一种翼型组件,其包括端壁和从所述气流通道延伸的翼型件。 端壁包括上游和下游边缘,并且限定在具有在平台结构的厚度方向上径向延伸的前表面的平台结构上。 至少一个流体喷射通道在从端壁的上游边缘向下游边缘的方向上延伸穿过平台结构。 流体注入通道具有限定在端壁处的出口开口和与加压流体源流体连通的入口开口。 流体喷射通道相对于端壁的平面以较小的角度延伸,其中流体喷射通道限定通过前表面和端壁的通道轴线,以实现出口和翼型前缘之间的边界层的通电。
    • 10. 发明授权
    • Plasma actuator controlled film cooling
    • 等离子执行器控制膜冷却
    • US08500404B2
    • 2013-08-06
    • US12770932
    • 2010-04-30
    • Matthew D. MontgomeryChander Prakash
    • Matthew D. MontgomeryChander Prakash
    • F01D5/18
    • F01D5/186F05D2260/202F05D2270/172
    • 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).
    • 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。