REFRIGERATING CYCLE TURBINE

PURPOSE:To restrain the sliding which is generated in the parallel direction and the rectangular direction of a turbine impeller shaft and contrive to increase the rotary output power by a method wherein a turbine impeller composed of an impeller part and a cylindrical part are arranged, the impeller part and the cylindrical part are formed respectively as a magnet in a casing. CONSTITUTION:A short cylinder-shaped recessed part 23 is formed by a partition wall 22 at one side of the central part of a sealed casing 21. A turbine impeller 27 is rotatably supported in the casing 21. The turbine impeller 27 is composed of a disc plate-shaped impeller part 25 provided with a periphery blade part 24 and a cylindrical part 26 which is integrally protruded from the impeller part 25. The impeller part 25 and the cylindrical part 26 are respectively composed as multipolar magnets. A driven rotary body 33 is composed of a cylinder-shaped multipolar magnet 31 and a shaft 32 supporting said multipolar magnet 31. The driven rotary body 33 is arranged in the recessed part 23 in freely rotatable manner with aligning a shaft 28 of the turbine impeller 27 common to a shaft line C. Thereby, the magnetic force of the turbine impeller 27 is respectively affected toward the parallel and rectangular direction of the shaft 28 and 32, accordingly, the sliding in both directions can be restrained.