Title:
REDUCED PROFILE ABRASION RESISTANT PUMP THRUST BEARING
Document Type and Number:
WIPO Patent Application WO/2012/061455
Kind Code:
A3
Abstract:
A centrifugal pump has a stationary diffuser with a bore. A thrust bearing is pressed into the diffuser bore and has a curved interior. A thrust runner having a curved exterior is correspondingly and closely received by the thrust bearing interior. The thrust runner is keyed to a shaft and transmits thrust from a rotating impeller to the diffuser via the thrust bearing. The curved surface of the thrust bearing allows for handling of both axial and radial thrust without the need for multiple thrust bearings. The increased surface area of the curved surface in the thrust bearing can also handle higher loads.
Inventors:
BRUNNER CHRISTOPHER M (US)
CHILCOAT DAVID W (US)
IVES JASON B (US)
CHILCOAT DAVID W (US)
IVES JASON B (US)
Application Number:
PCT/US2011/058886
Publication Date:
June 28, 2012
Filing Date:
November 02, 2011
Export Citation:
Assignee:
BAKER HUGHES INC (US)
BRUNNER CHRISTOPHER M (US)
CHILCOAT DAVID W (US)
IVES JASON B (US)
BRUNNER CHRISTOPHER M (US)
CHILCOAT DAVID W (US)
IVES JASON B (US)
International Classes:
E21B43/12; F04D29/046; F16C17/04
Foreign References:
| US7575413B2 | 2009-08-18 | |||
| US5722812A | 1998-03-03 | |||
| US7552782B1 | 2009-06-30 | |||
| US20100078177A1 | 2010-04-01 |
Attorney, Agent or Firm:
HENDRYX, Thomas, N. et al. (P.O. Box 4740Houston, Texas, US)
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