公开(公告)号：EP1082545B1

公开(公告)日：2004-03-03

申请号：EP99922396.9

申请日：1999-05-24

申请人： EBARA CORPORATION ,  UNIVERSITY COLLEGE LONDON

发明人： SAKURAI, Takaki, Ebara Corporation ,  HARADA, Hideomi, Ebara Corporation ,  ASHIHARA, Kosuke, Ebara Research Co., Ltd. ,  ZANGENEH, Mehrdad, University College London ,  GOTO, Akira Ebara Research Co., Ltd.

IPC分类号： F04D29/28 ,  F04D29/22

CPC分类号： F04D29/2277 ,  F04D29/284

摘要： An impeller (2) with splitter blades (5) has a wide operating range without affecting the performance of the turbomachinery. The impeller (2) for a turbomachinery comprises a plurality of splitter blades (5) disposed between the full blades (4) adjacent to each other. Each of the splitter blades (5) is shaped in such a way that a spanwise distribution of a pitchwise position of a leading edge of the splitter blade is determined according to a spanwise and pitchwise non-uniformity distribution of fluid velocity of a fluid flowing into the splitter blade (5).