Superconducting electromagnet for levitation and propulsion of a

Details Superconducting electromagnet for levitation and propulsion of a Superconducting electromagnet for levitation and propulsion of a

1994-09-09

1995-12-26

Picard, Leo P.

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

Magnet structure or material

335216, 310 14, 104285, 104286, H01F 300, H01F 100, H02K 4100, B60L 1302

Patent

active

054791456

ABSTRACT:
A superconducting electromagnet for levitation and propulsion of a maglev vehicle running against a rail has a magnetic core having a number of salient poles extending from a surface thereof, thereby forming gaps between adjacent ones of the poles, and facing and in operative proximity with the rail. An excitation coil surrounds each pole and is positioned in the gaps on each side of the pole. A cryostat accommodates the excitation coil and is positioned in the gaps between the conducting coil and the core. A control coil surrounds each pole and is positioned in the gaps on each side of the pole for responding to fast disturbances of short duration with a transient current.

REFERENCES:
patent: 3834318 (1974-09-01), Fellows
patent: 3836799 (1974-09-01), Eastham
patent: 3851594 (1974-12-01), Schwarzler
patent: 3954064 (1976-05-01), Minovitch
patent: 4273054 (1981-06-01), Yamashita
patent: 4640005 (1987-02-01), Mine
patent: 4646651 (1987-03-01), Yamamura
patent: 4953470 (1990-09-01), Yamaguchi
patent: 5094173 (1992-03-01), Tada
patent: 5222437 (1993-06-01), Shibata

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