SHAFT MAGNETIC FLUID SEAL Russian patent published in 2009 - IPC F16J15/43 

Abstract RU 2353840 C1

FIELD: mechanics.

SUBSTANCE: invention is designed to seal rotary shafts. The proposed seal comprises a magnetic system consisting of a permanent magnet and pole add-ons to make, with the shaft, a gap filled with magnetic fluid. The edges of aforesaid add-ons and/or shaft and their elements in contact with magnetic fluid are rounded off to eliminate higher magnetic field intensity zones in the seal gap that cause destruction of magnetic fluid.

EFFECT: higher reliability and longer life, reduced weight and sizes of magnetic fluid seals.

7 dwg

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RU 2 353 840 C1

Authors

Perminov Sergej Mikhajlovich

Dates

2009-04-27Published

2007-10-24Filed