SUPERCONDUCTIVE COIL EQUIPMENT

摘要

PURPOSE:To reduce the distance between the superconductive coil for mounting on a magnetic levitation type vehicle and a coil on the ground, and to contrive effectively using energy by making the cross section of the straight portion of an inner tank which stores liquid helium a circular arc like D-shape exterior at the top and a rectangular exterior at the bottom. CONSTITUTION:The cross section of the bottom 22 of an inner tank 20 which houses a superconductive coil 1 is made a rectangular shape and the thickness h2 of the plate which covers the outside of the coil is made thicker than the thickness of plate of the other part. The cross section of the top 21 of the inner tank is made a circular arc like D-shape exterior. The superconductive coil 1 is supported by plural D-shaped supporting members 31 at the top and by plural support members 32 and the bottom 22 of the inner tank at the bottom. Within these coil supporting members, easily sliding spacers 5 made of a material such as polyimide are inserted. The electromagnetic force (q) generated at the cross section of the straight portion of the lower coil facing to a coil on the ground prevents the stress and the flexure of the superconductive coil 1 by the flexural ridigity of the thicker outside plate of the bottom 22.