Abstract

Maglev pump is widely requested for artificial heart or chemical industries. Hybrid magnetic bearing is recognized as high efficient one even with wide airgap and suitable for such applications. This paper proposes two types of hybrid magnetic bearings for canned maglev pump. One is the standard (STD) type and another is the internal permanent magnet (IPM) type. Both types are analyzed using the finite element package and designed. Then the experimental setups are made and their fundamental characteristics are explained. The results show stable levitation and promising characteristics for the practical use.

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