Eccentric screw pump and use of an eccentric screw pump

The invention relates to an eccentric screw pump for delivering fluid and/or granular media. The pump body of the eccentric screw pump comprises an inlet region, a pump unit and an outlet region. A drive unit is assigned to the inlet region. The pump unit comprises a rotor and a stator, wherein the...

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Bibliographische Detailangaben
Hauptverfasser:	VOLKMANN, ELIMAR, LESSMANN, LORENZ
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING HEATING LIGHTING MECHANICAL ENGINEERING NON-POSITIVE DISPLACEMENT PUMPS 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 invention relates to an eccentric screw pump for delivering fluid and/or granular media. The pump body of the eccentric screw pump comprises an inlet region, a pump unit and an outlet region. A drive unit is assigned to the inlet region. The pump unit comprises a rotor and a stator, wherein the rotor moves eccentrically in the stator. The inlet region constitutes the suction side and the outlet region constitutes the pressure side of the eccentric screw pump. A bypass connection with at least one safety valve is assigned to the eccentric screw pump in order to take up and return back-flowing medium between the pressure side and the suction side of the eccentric screw pump. According to the invention, the bypass connection and the safety valve are integrated into the pump body of the eccentric screw pump. Figure 2 %4 CDr iN rO C) 3 o CC) CCo coo