| 摘要 |
PCT No. PCT/JP92/01394 Sec. 371 Date Jun. 9, 1994 Sec. 102(e) Date Jun. 9, 1994 PCT Filed Oct. 28, 1992 PCT Pub. No. WO93/09589 PCT Pub. Date May 13, 1993A completely novel rotary apparatus is provided which can rotate a composite rotor at a high speed by utilizing the magnetic force, the composite rotor being comprised of a plurality of ring-shaped rotors arranged concentrically with each other. The rotary apparatus has the feature that a central rotor is centrally arranged so as to be rotatable; a plurality of ring-shaped rotors are arranged concentrically with said central rotor in a relationship spaced apart from each other so as to be rotatable coaxially with said central rotor about its rotational axis; a group of magnetic poles are disposed on a surface of each rotor on the side facing a surface of the adjacent rotor; a group of the magnetic poles disposed on the surface of each rotor is so arranged as to make each of the magnetic poles equal in polarity to another group of the magnetic poles disposed on the surface of the adjacent rotor; and each magnetic pole of the group of the magnetic poles of each rotor is arranged alternately in the rotational direction with each respective magnetic pole of the another group of the magnetic pole of the adjacent rotor.
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