公开(公告)号：US20120315136A1

公开(公告)日：2012-12-13

申请号：US13483377

申请日：2012-05-30

申请人： Toyotaka Sonoda ,  Toshiyuki Arima ,  Giles Endicott ,  Markus Olhofer ,  Bernhard Sendhoff

发明人： Toyotaka Sonoda ,  Toshiyuki Arima ,  Giles Endicott ,  Markus Olhofer ,  Bernhard Sendhoff

IPC分类号： F01D9/04

CPC分类号： F04D29/526 ,  F01D5/143 ,  F01D5/145 ,  F01D25/162 ,  F04D29/544 ,  F05D2220/36

摘要： A generating line of a casing surrounding an outer periphery of vanes of a stator disposed downstream of a rotor of the axial-flow compressor includes: a recessed region recessed outward in a radial direction from a position forward of a front edge of each of the vanes to a position rearward of a rear edge of the vane; and a protruding region bulging inward in the radial direction at an intermediate position of the recessed region in a front-rear direction thereof. Thus, a distribution of static pressure in the radial direction on a surface of the vane is improved by a first recessed portion forward of the protruding region, and the static pressure on the tip side is raised by a second recessed portion rearward of the protruding region.

摘要翻译： 围绕设置在轴流式压缩机的转子下游的定子的叶片的外周围的壳体的发生线包括：从每个叶片的前边缘的前方的前方的位置沿径向向外凹陷的凹陷区域 到达叶片的后边缘的后方的位置; 以及在凹部区域的前后方向的中间位置沿径向向内凸出的突出区域。 因此，通过突出区域的前方的第一凹部来提高在叶片的表面上的径向上的静压力的分布，并且尖端侧的静压由突出区域的后方的第二凹部上升 。