Vacuum pump

The utility model relates to the technical field of vacuum pumps, in particular to a vacuum pump. The sealing structure of the vacuum pump comprises an exhaust end oil sealing ring and a cavity side sealing spiral shaft sleeve which are sequentially arranged in the axial direction of a rotor, and th...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	SHANG YUNKUN, QIAO ZHONGTAO, DING DEJIA, FAN TINGRUI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BLASTING HEATING LIGHTING MECHANICAL ENGINEERING 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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