公开(公告)号：US20240339897A1

公开(公告)日：2024-10-10

申请号：US18602254

申请日：2024-03-12

Applicant: ROLLS-ROYCE plc

Inventor： Alexis LAMBOURNE ,  Christopher D. RILEY

IPC: H02K15/00 ,  H01F13/00 ,  H02K11/01 ,  H02K1/2783

CPC classification number: H02K15/0006 ,  H01F13/003 ,  H02K11/012 ,  H02K1/2783

Abstract: A method of magnetising or demagnetising an annular component for a rotary machine, a flux arrangement for performing a magnetising or demagnetising method, and a flux assembly for such a flux arrangement; wherein, the annular component includes an alternating arrangement of radial elements and angular elements for forming a Halbach array. A magnetizer is caused to induce magnetic flux in a primary set of elements of the annular component including a primary radial element and an adjacent primary angular element. A shield element shields a secondary angular element of the annular component from magnetic flux from the magnetizer.