Passive magnetic bearing element with minimal power losses

Details Passive magnetic bearing element with minimal power losses Passive magnetic bearing element with minimal power losses

1995-11-03

1998-12-08

LaBalle, Clayton E.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 68R, 310103, 310156, H02K 709

Patent

active

058474803

ABSTRACT:
Systems employing passive magnetic bearing elements having minimal power losses are provided. Improved stabilizing elements are shown, employing periodic magnet arrays and inductively loaded circuits, but with improved characteristics compared to the elements disclosed in U.S. Patent No. 5,495,221 entitled "Dynamically Stable Magnetic Suspension/Bearing System." The improvements relate to increasing the magnitude of the force derivative, while at the same time reducing the power dissipated during the normal operation of the bearing system, to provide a passive bearing system that has virtually no losses under equilibrium conditions, that is, when the supported system is not subject to any accelerations except those of gravity.

REFERENCES:
patent: 5117448 (1992-05-01), Penato et al.
patent: 5302874 (1994-04-01), Pinkerton
patent: 5345128 (1994-09-01), Pinkerton et al.
patent: 5451825 (1995-09-01), Strohm
patent: 5495221 (1996-02-01), Post
patent: 5547338 (1996-08-01), Conrad et al.

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