Patent · US Active

Electrical submersible pump with equally loaded thrust bearings and method of pumping subterranean fluid

US7987913B2 · kind B2 · utility

15Cited by

22References

15Claims

0Family size

Assignee

Baker Hughes Holdings LLC · US

Inventors

Larry J. Parmeter · Broken Arrow, US
Scott C. Strattan · Broken Arrow, US
David Chilcoat · Oklahoma City, US

Key dates

Filing date	Sep 26, 2008
Grant date	Aug 2, 2011
Priority date	—
Expiry date	Feb 25, 2029

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16C2352/00
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A rotary pump having thrust bearings includes a system for equalizing the loading on the thrust bearings. The thrust bearings are each supported on pistons that are in fluid communication with a hydraulic circuit. The hydraulic circuit has substantially the same pressure throughout, thereby floating each piston at the same pressure to provide an equal support force to each thrust bearing via each piston.

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