Threaded connection for tandem motors of electrical submersible pump
US10458415B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 19, 2018 |
| Grant date | Oct 29, 2019 |
| Priority date | — |
| Expiry date | Apr 20, 2038 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2250/281
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An electrical submersible pump assembly has modules including a pump, at least one motor, and a pressure equalizer coupled to the motor. First and second ones of the modules have a threaded connection including a first adapter having threads. A second adapter mounted to the second module has a tubular body, a neck of smaller diameter than the body, an external shoulder at a base of the neck, a rim on the neck, and an external groove between the external shoulder and the rim. A collar is rotatably carried and axially movable on the neck, the collar being in threaded engagement with the threads of the first adapter, the collar having an internal groove. A split shoulder ring carried partly in the external groove and partly in the internal groove retains the collar on the neck and is biased into one of the grooves.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.