encapsulated magnet assembly, encapsulated magnetic bearing, purge method, rotary machine and oil / gas installation

摘要

A encapsulated magnet assembly includes at least one pole piece and an encapsulation housing. At least one portion of the encapsulation housing is adjacent to the at least one pole piece. At least one recess is provided in the encapsulation housing next to the housing portion for establishing fluid flow. The at least one recess is so shaped as to facilitate the fluid flow,