MAGNETIC FLUID AXIS SEALING FOR ENVIRONMENTS WITH MAGNETIC INCLUSIONS (VARIANTS) Russian patent published in 2008 - IPC F16J15/53 

FIELD: engineering industry; axis sealers.

SUBSTANCE: magnetic fluid axis sealing contains circular magnetic system with polar add-on devices, forming the gap with the axle, filled with magnetic fluid. On side of sealed environment sealing has secure facility from entry of the sealing surface magnetic particles into the seal operating gap. Secure facility is placed in space of sealing leakage flux. It is designed as nonmagnetic disk fixed at the pole add-on device, which part is located in radial axle slot. The variants of nonmagnetic disk location are described.

EFFECT: reliability improvement and endurance.

5 cl, 6 dwg