VACUUM PUMP WITH TWO HELICAL ROTORS

The invention relates to a vacuum pump comprising a housing (1), a mechanical portion (19) and a pumping portion (22). The pumping portion (22) includes two meshed helical rotors (A, B) each having a helical torsion about a longitudinal axis. The rotors (A, B) are short and held in an offset positio...

Ausführliche Beschreibung

Bibliographische Detailangaben

1. Verfasser:	BARTHOD, BENOIT
Format:	Patent
Sprache:	eng ; fre
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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