Railways – Magnetically suspended car – Including means to sense or control car position or attitude...
Patent
1996-02-01
1997-08-19
Morano, S. Joseph
Railways
Magnetically suspended car
Including means to sense or control car position or attitude...
104281, 104286, B60L 1306
Patent
active
056576978
ABSTRACT:
Disclosed is a coil of a magnetic levitation apparatus for supporting a moving body without contact by utilizing electromagnetic force produced by electromagnetic induction. Upper and lower stages of a two-stage induction coil arranged vertically with respect to the direction of travel of the moving body are connected so as to have mutually opposing orientations and are arranged in an asymmetrical figure-eight structure in which the heights or the numbers of turns of the upper and lower stages of the induction coil differ from each other. A guidance force large enough to offset lateral displacement of the moving body is produced, generation of a moment in the rolling direction of the moving body is reduced and non-contact support of the moving body in a region of lower velocities is made possible.
REFERENCES:
patent: 4690066 (1987-09-01), Morishita et al.
patent: 4913059 (1990-04-01), Fujie et al.
patent: 5275112 (1994-01-01), Rote et al.
patent: 5388527 (1995-02-01), Thornton
patent: 5517924 (1996-05-01), He et al.
LDIA '95, Nagasaki pp. 37-40, Murai et al.
Morano S. Joseph
Railway Technical Research Institute
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