Railways – Magnetically suspended car – Propulsion means employed to suspend car
Patent
1992-02-18
1993-06-29
Oberleitner, Robert J.
Railways
Magnetically suspended car
Propulsion means employed to suspend car
B60L 1304
Patent
active
052224376
ABSTRACT:
A levitation system of a magnetically levitated train is provided wherein superconducting magnets are installed in a car body, and the first layer and the second layer of levitation coils are so arranged as to be in a shifted location relative to each other in the moving direction of the train. By making the levitation coils two layers and by arranging the two layers in the shifted location relative to each other in the moving direction, amplitude of higher harmonic waves is reduced to a very small level, substantially to zero.
REFERENCES:
patent: 4779538 (1988-10-01), Fujiwara et al.
LD-89-26 Document of the Linear Drive Study Group of the Institute of Electrical Engineers of Japan, 1989.
Fukumoto Hideshi
Kobayashi Takashi
Maki Naoki
Saitoh Toshio
Shibata Masayuki
Hitachi , Ltd.
Oberleitner Robert J.
Rutherford Kevin D.
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