Reduced profile abrasion resistant pump thrust bearing
US8894350B2 · kind B2 · utility
12Cited by
12References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 2, 2010 |
| Grant date | Nov 25, 2014 |
| Priority date | — |
| Expiry date | Sep 26, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S415/901
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.