Magnetic levitation system for moving objects

Details Magnetic levitation system for moving objects Magnetic levitation system for moving objects

1994-08-01

1998-03-03

Le, Mark T.

Railways

Magnetically suspended car

B60L 1300

Patent

active

057223262

ABSTRACT:
Repelling magnetic forces are produced by the interaction of a flux-concentrated magnetic field (produced by permanent magnets or electromagnets) with an inductively loaded closed electric circuit. When one such element moves with respect to the other, a current is induced in the circuit. This current then interacts back on the field to produce a repelling force. These repelling magnetic forces are applied to magnetically levitate a moving object such as a train car. The power required to levitate a train of such cars is drawn from the motional energy of the train itself, and typically represents only a percent or two of the several megawatts of power required to overcome aerodynamic drag at high speeds.

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patent: 3834317 (1974-09-01), Miericke
patent: 5085149 (1992-02-01), Huson
patent: 5163546 (1992-11-01), Kawada et al.
patent: 5222436 (1993-06-01), Coffey
patent: 5222437 (1993-06-01), Shibata et al.
patent: 5253592 (1993-10-01), Coffey
patent: 5270593 (1993-12-01), Levi et al.

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