MULTIPOLAR MAGNETIC SYSTEM Russian patent published in 2012 - IPC H01F7/02 H02K1/27 

FIELD: electricity.

SUBSTANCE: multipolar magnetic system in the form of a circular cylinder comprises 2·P external pole magnets, 2·P internal pole magnets and 2·P interpolar magnets, connected into a mosaic structure, where P is a number of pole pairs. Interpolar magnets are magnetised tangentially, and external and internal pole magnets - radially. According external and internal magnets are magnetised in opposite directions. Interpolar and pole magnets adjoin each other with opposite poles. The cross section of an external pole magnet represents a figure limited with an external arc with a central angle α=360°/(2·P) of the ring and two chords, drawn from arc ends and crossing on the bisector of the angle α. The cross section of an internal pole magnet represents a figure limited with an internal arc with a central angle α=360°/(2·P) of the ring and two chords, drawn from arc ends and also crossing on the bisector of the angle a. Interpolar magnets are made so that they supplement external and internal pole magnets to the circular cylinder.

EFFECT: production of a maximum value of workflow induction at specified dimensions along both sides in a radial direction.

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