MAGNETIC FLUID SHAFT SEALING Russian patent published in 2010 - IPC F16J15/43 

FIELD: machine building.

SUBSTANCE: magnetic fluid shaft sealing includes constant magnet, pole attachments, magnetic fluid in the gap, and bearing assembly. Pole attachments have circular cut at the level of external surface of non-magnetic bushing; at that, inner parts of pole attachments are rigidly connected to each other through non-magnetic bushing and housing of bearing assembly, and outer parts of pole attachments and magnet form removable magnetic system. Inner parts of pole attachments and (or) non-magnetic bushing have filling-in holes with plugs. Removable magnetic system consisting of magnet and outer parts of pole attachments is enclosed in sleeve.

EFFECT: invention allows increasing assembly, erection and maintenance manufacturability of magnetic fluid sealings.

1 dwg