Magnetic bearing bushing

Details Magnetic bearing bushing Magnetic bearing bushing

1990-06-19

1991-10-22

Hannon, Thomas R.

Bearings

Rotary bearing

Plain bearing

384114, 384125, 384397, F16C 3310, F16C 2702

Patent

active

050590391

ABSTRACT:
A bearing bushing incorporating a sleeve (1) of magnetizable material forming the sliding surface of the bearing, a shaft (2) mounted in said sleeve (1) and a lubricant in the form of a magnetic fluid (3) between the sliding surface of the sleeve (1) and the shaft (2), whereby the sleeve (1) is magnetized in axial direction. For causing a hydrodynamic lubrication and an increased cooling effect the sleeve (1) on the inner side has axial channels (7) and axial recesses (9) on the outer side thus that the magnetic fluid (3) by the axial magnetic field around the sleeve (1), can be given a circulating motion along the inner and outer side of the sleeve.

REFERENCES:
patent: 3746407 (1973-07-01), Stiles et al.
patent: 4694213 (1987-09-01), Gowda et al.
patent: 4883367 (1989-11-01), Maruyama
patent: 4938611 (1990-07-01), Nii et al.

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