MAGNETIC LEVITATION TYPE PHOTO-DRIVEN ROTOR

• Main Authors: TAKAGI AKIYUKI, MATSUSHITA OSAMI, OGATA HISANAO, OOTAKE IKUJI, YONEYAMA MITSUO
• Format: Patent
• Language: English
• Published: 09.05.1989
• Subjects: BEARINGS; BLASTING; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; ELEMENTS OR CRANKSHAFT MECHANISMS; ENGINEERING ELEMENTS AND UNITS; FLEXIBLE SHAFTS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; GENERATION; HEATING; LIGHTING; MACHINES OR ENGINES FOR LIQUIDS; MECHANICAL ENGINEERING; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOTOTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISEPROVIDED FOR; OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR; PRODUCING MECHANICAL POWER; ROTARY BODIES OTHER THAN GEARING ELEMENTS; SHAFTS; SPRING, WEIGHT, INERTIA OR LIKE MOTORS; THERMAL INSULATION IN GENERAL; WEAPONS; WIND, SPRING WEIGHT AND MISCELLANEOUS MOTORS

PURPOSE:To prevent reduction in life due to friction, etc., by providing both a magnet that supports a rotor and the superconducting material of magnetic repulsion provided in the rotational center of the rotor. CONSTITUTION:A magnet 2 is fitted in the lower part of a bulb 1 and sealed in vacuum. An impeller 4 is connected to a high temperature superconducting material 3, and a blade 5 is fitted to the tip of the impeller 4, with the front and the back of the blade being colored white and black, respectively. When the whole is cooled until the high temperature superconducting material 3 is allowed to be superconductive, the superconducting material will be subjected to magnetic repulsion against the magnet 2 due to the diamagnetic effect of the high temperature superconducting material 3. When light is applied to the black part of the blade 5, light pressure will produce rotational torque from the black side to the white side, the impeller 4 being allowed to rotate in no contact levitational condition.