公开(公告)号：US20120263599A1

公开(公告)日：2012-10-18

申请号：US13437958

申请日：2012-04-03

申请人： Kazuyuki SUGIMURA ,  Hideo Nishida ,  Hiromi Kobayashi ,  Toshio Ito

发明人： Kazuyuki SUGIMURA ,  Hideo Nishida ,  Hiromi Kobayashi ,  Toshio Ito

IPC分类号： F01D5/14 ,  F01D5/02

CPC分类号： F04D29/284 ,  F04D29/30

摘要： An impeller includes a hub plate and a plurality of blades circumferentially disposed at intervals on one surface side of the hub plate. Each blade has a shape formed by piling up a plurality of blade sections in a blade height-wise direction of each blade in a reference impeller in which the hub plate intersects with the blades and which includes a linear element blade in the blade height-wise direction so as to form a curvilinear element blade. In piling up the blade sections, amounts of tangential lean and sweep to be applied to the blade sections are increased as it goes from an end face of at least one of a hub plate side end and a counter hub plate side end toward a span intermediate part of the blade.

摘要翻译： 叶轮包括轮毂板和在毂板的一个表面侧上周向间隔设置的多个叶片。 每个叶片具有通过在参考叶轮中的每个叶片的叶片高度方向上堆叠多个叶片部分而形成的形状，其中轮毂板与叶片相交，并且其包括叶片高度方向上的线性元件叶片 以形成曲线元件叶片。 在堆叠叶片部分时，施加到叶片部分的切向倾斜和扫掠的量随着从毂板侧端部和对置毂板侧端部朝向跨度中间线中的至少一个的端面而增加 部分刀片。