| 摘要 |
PROBLEM TO BE SOLVED: To provide a magnetic levitation rotation apparatus in which a deterioration in the capability of a refrigerator is prevented even in the case where high-speed stirring is required, regarding a non-contact stirring apparatus comprising the refrigerator unitedly configured with a superconductive bulk body for levitating and rotating stirrer. SOLUTION: The magnetic levitation rotation apparatus comprises a stirrer 1 provided with a stirring blade 2 and configured in a manner of forming an uneven magnetic flux distribution on a concentric circumference with a rotary shaft P, a magnetic polar structural object 5 for levitating and rotating the stirrer 1, and a rotating power source 23 for rotating the magnetic polar structural object 5. The magnetic polar structural object 5 is unitedly composed of a superconductive bulk body 6, a cooling body 7 for cooling the superconductive bulk body 6, a refrigerator 8 for cooling the cooling body 7, and a compressor 9 for compressing and supplying a refrigerant to the refrigerator 8. The compressor 9 comprises a piston 51 reciprocating along the drive shaft P and the drive shaft P of the piston 51 and the rotary shaft P of the magnetic polar structural object 5 are conformed with each other. COPYRIGHT: (C)2009,JPO&INPIT
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