Axial electromagnetic bearing for a shaft rotating at high speed

Details Axial electromagnetic bearing for a shaft rotating at high speed Axial electromagnetic bearing for a shaft rotating at high speed

1978-01-06

1979-12-25

Skudy, R.

Cutlery

F16C 3900

Patent

active

041802969

ABSTRACT:
An axial electromagnetic bearing for supporting the end of a shaft rotating a high speed of the type comprising an armature in the form of a disc attached to the shaft and a fixed annular armature disposed facing the disc armature a short distance from the former so as to define a small axial air gap therebetween, the said fixed armature comprising excitation windings and a ferromagnetic core, the bearing being characterized in that radial grooves are provided in the peripheral portion of the disc and situated facing the annular fixed armature.
The arrangement causes a reduction in the effect of Eddy currents without detracting from the mechanicl strength of the bearing.

REFERENCES:
patent: 2550571 (1951-04-01), Litman
patent: 3230406 (1966-01-01), Henry-Baudot
patent: 3746407 (1973-07-01), Stiles
patent: 3779618 (1973-12-01), Soglia
patent: 3929390 (1975-12-01), Simpson

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