公开(公告)号：US10808703B2

公开(公告)日：2020-10-20

申请号：US16060215

申请日：2016-12-07

Applicant: GRUNDFOS HOLDING A/S

Inventor： Steen Mikkelsen ,  Niels Due Jensen ,  Brian Lundsted Poulsen

IPC: F04D1/06 ,  F04D29/42 ,  F04D29/62

Abstract: A multistage centrifugal pump has a foot part (2) and a head part (9), between which pump stages are integrated. The head part (9) and the foot part (2) are connected via tie-rods (11) which with one end are fastened on the head part (9) and with the other end are fastened on the foot part (2). The tie-rods (11) at one end comprise a thread (14), with which they are tightened on the head part (9). The tie-rods (11) are formed from sheet metal. At the end opposite the thread, the tie-rods include a recess, with which recess the tie-rods are each positively fixed on the foot part (2), at least in the tensile direction (22).

公开(公告)号：USD884744S1

公开(公告)日：2020-05-19

申请号：US29603371

申请日：2017-05-09

Applicant: Grundfos Holding a/s

Designer： Niels Due Jensen ,  Steen Mikkelsen