Electrical submersible pump stage construction
US8066476B2 · kind B2 · utility
10Cited by
10References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 31, 2007 |
| Grant date | Nov 29, 2011 |
| Priority date | — |
| Expiry date | Mar 26, 2030 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2300/43
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A pump stage is disclosed for use with an electrical submersible pump. The stage includes an impeller and diffuser, each having a hub, blades and an outside ring. In such pump stage, the stage flow area is constructed from separate segments manufactured from wear resistant material. Furthermore, each separate segment is retained by the hub using an external compression fit ring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.