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.

Date of Patent:
Feb. 11, 2025

Filed:

Nov. 18, 2021
Applicant:

Fmc Technologies DO Brasil Ltda, Rio de Janeiro, BR;

Inventor:

Nicholas Fletcher, Vancouver, CA;

Assignee:

FMC TECHNOLOGIES DO BRASIL LTDA, RIO DE JANEIRO, BR;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04D 29/041 (2006.01); F04D 29/051 (2006.01);
U.S. Cl.
CPC ...
F04D 29/0416 (2013.01); F04D 29/0516 (2013.01);
Abstract

A pump () is disclosed comprising: an inlet () being in fluid communication with an inlet cavity (); an outlet () being in fluid communication with an outlet cavity (); a motor () being arranged in a motor cavity (); a pump axis () being rotatably drivable by the motor: impellers () being positioned between the inlet cavity and the outlet cavity and being actuatable by the pump axis to cause a differential pressure across the inlet cavity and the outlet cavity; and a balance arrangement () configured to at least partially offset an axial thrust affected upon the axis by the impellers when the pump is in operation, the balance arrangement comprising: a balance cavity (); a balance drum () arranged between the outlet cavity and the balance cavity; and a balance line () extending between and fluidly connecting the balance cavity and the inlet cavity. The inlet is in fluid communication with the inlet cavity via the balance cavity and the balance line. A related method is also disclosed.


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