公开(公告)号：US20170175749A1

公开(公告)日：2017-06-22

申请号：US15384603

申请日：2016-12-20

Applicant: GRUNDFOS HOLDING A/S

Inventor： Erik Bundesen SVARRE ,  Jan Carøe AARESTRUP ,  Peter ELVEKJÆR ,  Flemming MUNK

IPC: F04D27/00 ,  F04D15/00 ,  F04D17/08 ,  F01D5/02 ,  F04D29/053 ,  F04D29/22 ,  F04D29/28 ,  F04D1/06 ,  F04D29/043

Abstract: A centrifugal pump includes at least one pump stage (14). This pump stage (14) includes an impeller (18) which is mounted rotationally fixed on a pump shaft (26). Apart from the pump stage (14), the centrifugal pump is equipped with a turbine wheel (32) which is arranged on the pump shaft (26), without a movement coupling to the pump shaft, in the delivery flow of the centrifugal pump. This turbine wheel (32) forms a transducer of a flow measuring device. A blading of the turbine wheel (32) is such that a torque exerted by the delivery flow onto the turbine wheel (32′) is directed counter to a torque exerted via the pump shaft (26) onto the impeller (18).