Machine and pump integrated all-metal screw pump oil extraction device with external rotor

The invention relates to a screw pump oil extraction device, in particular to a machine and pump integrated all-metal screw pump oil extraction device with an external rotor, and belongs to the technical field of oil extraction machinery. The device comprises a shell, a machine-pump integrated all-m...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	TAN LIPING, WANG HONGYAN, ZHOU YUFU, CUI JUNGUO, GAO XIANG, QIN HAOZHI, MEI LIANPENG, LI CHANGJIANG, KANG YONGTIAN, LIU ZHANPENG, LIU QI, XIAO WENSHENG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BLASTING EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS 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 FOR LIQUIDS OR ELASTIC FLUIDS ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTMACHINES FOR LIQUIDS ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTPUMPS WEAPONS
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