公开(公告)号：US20180212500A1

公开(公告)日：2018-07-26

申请号：US15321453

申请日：2015-05-27

Applicant: GRUNDFOS HOLDING A/S

Inventor： Flemming Buus BENDIXEN ,  Peter KJELDSTEEN ,  Allan Ivo SØGAARD

IPC: H02K16/00 ,  F04D13/02 ,  H02K1/02 ,  H02K7/16 ,  H02K15/03 ,  H01F13/00

CPC classification number: H02K16/005 ,  F04D13/025 ,  F04D13/027 ,  H01F13/003 ,  H01F41/028 ,  H02K1/02 ,  H02K7/16 ,  H02K15/03 ,  H02K49/106

Abstract: A magnetic coupling includes an inner rotor (11) and an outer rotor (9) which at least partly surrounds the inner rotor (11). These rotors (11, 9) each are formed of magnetic material (18) and are coupled to one another by way of magnetic forces. The inner rotor (11) and/or the outer rotor (9) contain powdery, magnetizable material (18). The powdery, magnetizable material (18) is magnetized at a side lying opposite the other rotor at several locations distributed over the periphery.