Intermediate bearing in electrical submersible pump
US11415138B2 · kind B2 · utility
0Cited by
9References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 5, 2020 |
| Grant date | Aug 16, 2022 |
| Priority date | — |
| Expiry date | Oct 21, 2040 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2260/38
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A submersible well fluid pump has diffusers non-rotatably mounted in a pump housing. A drive shaft rotates an impeller between each of the diffusers. A bearing is positioned between and in abutment with two of the diffusers. An annular recess encircles an outer wall of the bearing. A wave spring has undulations with inward protruding indentations in contact with a base of the recess and outward protruding indentations in engagement with an inner wall of the housing. The wave spring is split and radially compressed between the base of the recess and the housing inner wall.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.