Patent · US Active

Rotor for an eccentric screw pump and method for the manufacture thereof

US11841016B2 · kind B2 · utility

0Cited by

3References

1Claims

0Family size

Assignee

VOGELSANG GMBH & CO KG · DE

Inventors

Peter Hartogh · Essen, DE
Michael Rolfes · Bridgeton, US
Hugo Vogelsang · Essen, DE

Key dates

Filing date	Jul 18, 2019
Grant date	Dec 12, 2023
Priority date	—
Expiry date	Nov 19, 2039

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P10/25
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A method of manufacturing a metallic rotor of an eccentric screw pump, comprising clamping a workpiece extending along a central longitudinal axis in a workpiece clamping device and removing material from the workpiece by cutting with a cutting tool. The invention further comprises not producing the surface of the rotor in a three-axis whirling process, using the cutting tool to produce the outer surface geometry of the rotor, advancing the cutting tool along an axis of advance that is parallel to the longitudinal axis of the rotor, and rotating the cutting tool about an axis of tool rotation that is parallel to the longitudinal axis of the rotor.

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