Patent · US Active

Eccentric screw pump

US11236747B2 · kind B2 · utility

0Cited by

6References

19Claims

0Family size

Assignee

NETZSCH Pumpen & Systeme GmbH · DE

Inventors

Josef Hauck · Mengkofen, DE
Hisham Kamal · Waldkraiburg, DE
Reinhard Denk · Dahme/Mark, DE

Key dates

Filing date	Apr 10, 2018
Grant date	Feb 1, 2022
Priority date	—
Expiry date	Oct 8, 2038

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF05C2225/04
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

An eccentric screw pump for pumping fluids or flowing conveying media from a suction side to a pressure side, which includes a rotor and a stator, the stator being flexible and is connected to the pump housing on one side, in particular on the suction side. The rotor is connected to the drive shaft by means of an articulation. When the eccentric screw pump is in the idle state, there is no sealing contact at least in areas between the rotor and the stator in the sealing areas. When the eccentric screw pump is in the operating state, the stator is surrounded, at least in sections and/or, essentially, on the periphery by the conveying medium. The rotor and the stator are brought into contact with each other in the operating state along the sealing area.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.