Abrasion resistant pump thrust bearing

USRE43363E1 · kind E1 · reissue

Assignee

• Baker Hughes Holdings LLC · US

Inventors

• Ryan P. Semple · Owasso, US
• Robert Charles De Long · Tulsa, US
• Christopher Brunner · Owasso, US
• Arturo Luis Poretti · Claremore, US
• Terry W. Shafer · Broken Arrow, US

Key dates

• Filing date: Mar 31, 2011
• Grant date: May 8, 2012
• Expiry date: Mar 31, 2031

Classification

• Technology area (CPC —): General

Abstract

A centrifugal pump has a stationary diffuser with a bore. A thrust bearing has a tubular portion that inserts into the bore. The thrust bearing has an external shoulder that contacts a support surface in the bore of the diffuser for transmitting downward thrust from an upstream impeller to the diffuser. The thrust bearing has an internal shoulder for transmitting upward thrust from a downstream impeller to the diffuser.