公开(公告)号：WO2022106089A1

公开(公告)日：2022-05-27

申请号：PCT/EP2021/074820

申请日：2021-09-09

Applicant: HITACHI ENERGY SWITZERLAND AG

Inventor： MISSING, Kim ,  IKAHEIMO, Jouni ,  KANSAKANGAS, Tero ,  DANCI, Alex Michael

IPC: H02K5/132 ,  H02K49/10 ,  H02K21/12 ,  F04D13/02 ,  F04D3/02 ,  F04D13/06 ,  E21B41/00 ,  H01F27/12

Abstract: In at least one embodiment, the liquid circulation system (100) comprises - a rotor (1) located within a tank (3), - a stator (22) having a plurality of coils (23) outside the tank (3), and - an exterior tank wall (30) that is non-magnetic and that is located next to the rotor (1) and between the rotor (1) and the stator (22), wherein - an axis (R) of rotation of the rotor (1) is in parallel with the exterior tank wall (30), - the coils (23) of the stator (22) are arranged along the axis (R) of rotation of the rotor (1) so that the rotor (1) is configured to be rotated by the stator (22) in a touchless manner through the exterior tank wall (30) by means of a varying electromagnetic field driven by the stator (22) to circulate a liquid (4) within the tank (3).