Fluid-handling, bladed rotor
    4.
    发明授权
    Fluid-handling, bladed rotor 失效
    流体处理,叶片转子

    公开(公告)号:US5020970A

    公开(公告)日:1991-06-04

    申请号:US379315

    申请日:1989-07-13

    IPC分类号: F01D5/14

    摘要: The rotor has a body with recesses formed therein in which airfoil-type blades are secured. The blades have platforms which abut one another to define an annular wall which circumscribes the rotor body. One edge of each of the platforms, which abuts an adjacent platform, has a rectilinear cut-out formed therein. The resulting void constitutes a slot which extracts fluid therethrough, and each void has an evacuating duct in communication therewith for venting the extracted fluid. The voids and ducts bleed off a minimal volume of the fluid handled by the rotor, principally the volume which comprises the secondary flows. These are the secondary flows which, otherwise, would result in the formation of eddies and vortices which are susceptible of eroding the roots of the blades.

    摘要翻译: 转子具有形成在其中的凹部的主体,翼型叶片被固定在其中。 叶片具有彼此邻接以限定环绕转子体的环形壁的平台。 每个平台的邻接邻近平台的一个边缘具有形成在其中的直线切口。 所产生的空隙构成通过其提取流体的槽,并且每个空隙具有与之连通的排气管,用于排出提取的流体。 空隙和管道渗出由转子处理的流体的最小体积,主要是包括二次流的体积。 这些是二次流动,否则将导致容易腐蚀叶片根部的漩涡和漩涡的形成。