Permanent magnetism synchronous non-gear-wheel driving screw pump type oil production machine

The utility model relates to a permanent magnet synchronous gearless traction screw pump oil extractor. The device adopts a radial and direct transmission or flexible closed loop steel wire rope radial transmission mode.The permanent magnet synchronous motor main shaft joints with the oil extraction...

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Bibliographische Detailangaben
Hauptverfasser:	CUI GANGDOU, CUI YUE
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BLASTING EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING ENGINEERING ELEMENTS AND UNITS FIXED CONSTRUCTIONS GEARING GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS THERMAL INSULATION IN GENERAL WEAPONS
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