公开(公告)号：EP2791513B1

公开(公告)日：2016-09-28

申请号：EP12809937.1

申请日：2012-12-13

申请人： Xylem IP Holdings LLC

发明人： BURMAN, Joergen

IPC分类号： F04D3/02 ,  F04D29/52 ,  F04D29/54

CPC分类号： F04D3/00 ,  F04D3/02 ,  F04D29/528 ,  F04D29/548

公开(公告)号：EP2791513A2

公开(公告)日：2014-10-22

申请号：EP12809937.1

申请日：2012-12-13

申请人： Xylem IP Holdings LLC

发明人： BURMAN, Joergen

IPC分类号： F04D3/02 ,  F04D29/52 ,  F04D29/54

CPC分类号： F04D3/00 ,  F04D3/02 ,  F04D29/528 ,  F04D29/548

摘要： According to a first aspect, the present invention relates to a propeller pump comprising a pump housing and a pump core that is arranged in the pump housing and has a propeller, which together delimit a channel, and which are connected by means of a guide vane. The propeller pump is characterized in that a cross-sectional area (A2) of the channel (27) at the rear edge (30) of the guide vane (13) has a measure that is greater than, and that is less than a factor of 1,1 times, a cross-sectional area (A1) at the rear edge (29) of the blades (21) of the propeller, and that the specific rotational speed of the propeller pump is greater than 200 and less than 300. According to a second aspect, the present invention relates to a pump station comprising such a propeller pump.