Patent · US Active

Coupling element for an eccentric screw rotor

US10760571B2 · kind B2 · utility

0Cited by

4References

15Claims

0Family size

Assignee

NETZSCH Pumpen & Systeme GmbH · DE

Inventors

Mikael Tekneyan · Waldkraiburg, DE
Philipp Nübl · Haag in Oberbayern, DE
Stefan Weigl · Mühldorf a. Inn, DE
Helmuth Weber · Aschaffenburg, DE
Markus Rosam · Aschau am Inn, DE

Key dates

Filing date	Jun 9, 2016
Grant date	Sep 1, 2020
Priority date	—
Expiry date	Jan 21, 2037

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF04C2240/805
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A coupling element for connecting a helix-shaped eccentric screw pump rotor to a drive shaft, with a drive shaft receiving portion and a rotor connecting portion arranged at an opposite end of the coupling element from the drive shaft receiving portion, the rotor connecting portion is constituted as a hollow cylinder for receiving a rotor end of the screw pump rotor, wherein the hollow cylinder has at least two inner circumferential surfaces which are complementary to the rotor and have a radius which is fixed with respect to the cross-sectional center of the hollow cylinder.

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