Railways – Magnetically suspended car
Patent
1980-05-19
1981-12-29
Bertsch, Richard A.
Railways
Magnetically suspended car
105164, B61B 1308
Patent
active
043076688
ABSTRACT:
A vehicle-suspension type of permanent magnet-levitation transportation system has an elevated track structure defining a bed with a ferromagnetic levitation track on the underside thereof and a spaced parallel control track composed of ceramic magnetic material having transverse polarity orientation also running on the underside of the bed. A vehicle for traveling along the track has a series of spaced cobalt-rare earth levitation magnets positioned under the ferromagnetic track and a series of spaced cobalt-rare earth control magnets positioned under the control track in magnetic repulsion mode with the ceramic magnets. In levitated position the attraction of the levitation magnets for the ferromagnetic track is balanced by the repulsion between the control magnets and the ceramic track. Hydraulic, mechanical and electromagnetic means for positioning the levitation and control magnets in proper vertical relationship to maintain levitation of the vehicle are described.
REFERENCES:
patent: 3460485 (1969-08-01), Eastov
patent: 4181080 (1980-01-01), Miller
patent: 4217829 (1980-08-01), Heidelberg
Bertsch Richard A.
Braddock Allard A.
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