The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 12, 2025
Filed:
Jan. 13, 2023
Alfa Laval Corporate Ab, Lund, SE;
Jesper Raabjerg Jensen, Middelfart, DK;
Poul Anton Daugaard, Kolding, DK;
ALFA LAVAL CORPORATE AB, Lund, SE;
Abstract
A centrifugal pump housing comprises a rear housing part having a drive shaft opening, a front housing part attachable to the rear housing part for forming a pump chamber, and a sealing arrangement for sealing the drive shaft opening. The sealing arrangement comprises a stationary annular seal element that is rotationally locked and that has a stationary plane seal surface facing forwards in the axial direction, and a rotatable annular seal element configured to be rotationally locked. The rotatable annular seal element has a rotatable plane seal surface facing rearwards in the axial direction and configured to sealingly abut against the stationary plane seal surface. Stationary protrusions are integrally formed in the rear housing part or in the sealing retainer, and are located in or adjacent the drive shaft opening for increasing the turbulence of a flow of product fluid in the pump housing adjacent to the sealing arrangement.