Railways – Magnetically suspended car – Including means to sense or control car position or attitude...
Patent
1979-11-14
1981-11-10
Reese, Randolph A.
Railways
Magnetically suspended car
Including means to sense or control car position or attitude...
104281, 104293, 310 12, 318135, B61B 1308
Patent
active
042991730
ABSTRACT:
An improvement in an inductive repulsion type vehicle magnetic levitation and guide system for a curved track in which the vehicle is levitated by an electromagnetic force generated between levitation conductors having the same time constant and laid in two parallel rows on the ground at specific intervals in the direction of travel of the vehicle and levitation superconductive magnets on the vehicle capable of being electromagnetically coupled with the levitation conductors, the magnets being opposed to the levitation conductors at a specific distance from the levitation conductors. The vehicle is guided by an electromagnetic force generated between guide conductors having the same time constant successively positioned at specific intervals in the direction of travel of the vehicle and guide superconductive magnets mounted on the vehicle opposed to the guide conductors at a specific distance from the guide conductors. The electromagnetic force generated between the levitation superconductive magnets and the levitation conductors or between the guide superconductive magnet and the guide conductor on one side of a curved track is made larger than the similar force generated on the other side of the curved tracks, and the differential force counteracts the centrifugal force acting on the vehicle running over the curved track, thus stabilizing the vehicle running at high speed along the curved track.
REFERENCES:
patent: 3828686 (1974-08-01), Steenbeck et al.
patent: 3913493 (1975-10-01), Maki et al.
patent: 4055123 (1977-10-01), Heidelberg
Arima Kazutaka
Kitano Yoshiyuki
Japanese National Railways
Reese Randolph A.
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