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The compressor has sealing rings (24, 25) are provided for the two pump shafts (5, 6) to separate the work and gear regions (2, 11), and also for the pump shaft (6) protruding from the gear region (11) to separate this region from the surrounding atmosphere. Each sealing ring has a lip in contact wi...

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Bibliographische Detailangaben
Hauptverfasser:	AMLINGER, HEINRICH, ROTH, HERBERT
Format:	Patent
Sprache:	ger
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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Beschreibung
Zusammenfassung:	The compressor has sealing rings (24, 25) are provided for the two pump shafts (5, 6) to separate the work and gear regions (2, 11), and also for the pump shaft (6) protruding from the gear region (11) to separate this region from the surrounding atmosphere. Each sealing ring has a lip in contact with the shaft and oriented towards the work region (2) of the compressor. Two parallel pump shafts extend through the gear, neutral and work regions, both shafts being provided with a rotor (3, 4) inside the work region. A labyrinth seal (17-20) is provided for the pump shafts in between the work and neutral regions. An Independent claim is also included for a method of operating the above compressor, by providing a pressure in the neutral region which is lower than that in the work region, and providing a pressure in the gear region which is less than that in the work region but greater than atmospheric pressure.