Insulation shell in a new induction shaft coupling is a main element to solve leakiness of magnet pump, it often works in changing magnetic field so that eddy current is produced, and eddy current results in wastage and decreasing the efficiency.

• 摘要磁力联轴器中内外转子间的隔离套是磁力泵实现无泄漏的主要零件，由于磁力联轴器工作时，隔离套便处在变化的磁场中，则其内部将产生涡流，导致涡流损耗和传递效率降低。