Abrasion resistant pump thrust bearing
US7575413B2 · kind B2 · utility
34Cited by
20References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 10, 2006 |
| Grant date | Aug 18, 2009 |
| Priority date | — |
| Expiry date | Jun 1, 2027 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D29/047
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.