| 摘要 |
The present invention relates to a superconductive cryogenic pump for forced circulation of a cryogenic refrigerant. According to the present invention, the cryogenic pump for forcedly circulating a cryogenic refrigerant such as helium, hydrogen, neon, argon, nitrogen, methane, and oxygen in a gas or liquid state has a superconductive ring fitted to a rotary shaft thereof upon the rotation, so that an impeller is separated through non-contact magnetic levitation according to the perfect diamagnetism of the superconductivity and thus rotated, without any friction, thus semi-permanently extending the service life of a rotor of the cryogenic pump, optimizing the durability of the pump itself, and remarkably improving the operating efficiency of the cryogenic pump. [Reference numerals] (AA) Heat-shrinkable (ceramic ball, copper alloy) |
