PUMP

Publication Year: 2020

Application Year: 2018

Priority Year: 2018

Jurisdictions: EP

Status: Withdrawn

Inventors:

Brian Lenstein de Poulsen LUNDSTED POULSEN BRIAN LUNDSTED POULSEN BRIAN LUNDSTED POULSEN BRIAN LUNDSTED POULSEN BRIAN LUNDSTED POULSEN BRIAN LUNDSTED POULSEN BRIAN LUNDSTED POULSEN BRIAN LUNDSTED POULSEN BRIAN Nella Winslow WINTHER LAUE NIELAS WINTHER LAUE NIELAS WINTHER LAUE NIELAS WINTHER LAUE NIELAS WINTHER LAUE NIELAS WINTHER LAUE NIELAS WINTHER LAUE NIELAS WINTHER LAUE NIELAS

Applicants:

Grundfos Holdings AS

[NORA names:

Grundfos

Private Research

Abstract

The present disclosure refers to a pump (1) comprising

- a rotor shaft (13) extending along a rotor axis (R),
- a bearing body (19) circumferentially encompassing the rotor shaft (13) and comprising a radially outer bearing surface (32), and
- a locking ring (25) circumferentially encompassing the rotor shaft (13) and limiting an axial movement of the bearing body (19) relative to the rotor shaft (13),
  wherein the locking ring (25) comprises at least two radially inwardly protruding teeth (49, 51, 53, 55), wherein the locking ring (25) is radially expandable from a locking state to a mounting state against an elastic restoring force of the locking ring (25), wherein the locking ring (25) is, in the mounting state, positionable at a desired axial position on the rotor shaft (13), wherein the teeth (49, 51, 53, 55) are configured to press, in the locking state, against a radial outer surface (31) of the rotor shaft (13) by the elastic restoring force of the locking ring (25).