Pumpenanordnung

Details

Veröffentlichungs-Nr.

EP4198319

Aktenzeichen

EP21215471

Anmeldetag

17. Dezember 2021

Veröffentlichung

19. November 2025

Erteilung

19. November 2025

Rechtsraum

EP

IPC

F16D1/093F04D29/044

Abstract

The present disclosure refers to a pump assembly (1) comprising: - an electric drive motor (5) comprising at least a motor drive shaft (35) and a rotor (41), wherein the motor drive shaft (35) extends along a rotor axis (R) and the rotor (41) is mechanically coupled to the motor drive shaft (35); and - a pump housing (3) enclosing an impeller (13) that is mechanically coupled to a pump drive shaft (33), wherein the pump drive shaft (33) extends along the rotor axis (R), wherein the motor drive shaft (35) is releasably coupled to the pump drive shaft (33) by a drive shaft coupling (37) for transferring torque from the motor drive shaft (35) to the pump drive shaft (33), characterised by the motor drive shaft (35) being hollow from a first axial motor drive shaft end (81) to a second axial motor drive shaft end (83), wherein the pump drive shaft (33) protrudes into the hollow motor drive shaft (35) at the first axial motor drive shaft end (81), wherein the drive shaft coupling (37) is arranged at least partly within the hollow motor drive shaft (35) for transferring torque from the motor drive shaft (35) to the pump drive shaft (33) by frictional connection with a radial inner surface (89) of the hollow motor drive shaft (35) and/or a radial outer surface (93) of the pump drive shaft (33), wherein the drive shaft coupling (37) is accessible by an elongate tool through the second axial hollow motor drive shaft drive end (83) for selectively tightening and releasing the drive shaft coupling (37).

Anmelder

Firma

Grundfos Holding A/S

Land

🇩🇰 Dänemark

Fachgebiete