ROTARY ELECTRIC MACHINE, AND COMPRESSOR

PROBLEM TO BE SOLVED: To prevent electric erosion of a bearing by making a cyclic current that used to flow bearings at both ends of a shaft caused by magnetic unbalance around a rotor shaft flow into a path other than the bearing and provide a rotary electric machine having excellent maintainabilit...

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Bibliographische Detailangaben
Hauptverfasser:	OHATA KOJI, MIYAKE SHIGEJI, OTAWARA MASARU, TSUCHIYA TAKESHI
Format:	Patent
Sprache:	eng
Schlagworte:	BEARINGS BLASTING CONVERSION OR DISTRIBUTION OF ELECTRIC POWER DYNAMO-ELECTRIC MACHINES 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 MECHANICAL ENGINEERING ROTARY BODIES OTHER THAN GEARING ELEMENTS SHAFTS THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To prevent electric erosion of a bearing by making a cyclic current that used to flow bearings at both ends of a shaft caused by magnetic unbalance around a rotor shaft flow into a path other than the bearing and provide a rotary electric machine having excellent maintainability.SOLUTION: A rotary electric machine includes: a shaft 6; a rotor 4 that rotates by a rotation of the shaft 6; a housing 10 that accommodates the rotor 4 and a stator 2; and bearings 15, 16 that rotatably support the shaft 6. A current path 19 through which an induction current generated by unbalance of magnetic flux around the shaft 6 is formed in the shaft 6 without providing a brush, so that no induction current flows through the bearings 15, 16 by the current path 19.