Electric motors and related systems for deployment in a downhole well environment
US8587163B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 2, 2009 |
| Grant date | Nov 19, 2013 |
| Priority date | — |
| Expiry date | Feb 14, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K33/16
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Electric motors configured for deployment in a downhole well environment are provided. Downhole well pumping systems including an electric motor are also provided. In one example, an electric motor includes a series of at least three magnets, one of the inner and outer two magnets being movable. A supply of alternating current is configured to alternate the polarity of one of the inner and outer two magnets to thereby cause one of the inner and outer two magnets that is movable to reciprocate and provide linear output to drive an operable production device. In another example, two adjacent, stationary magnets and at least one movable magnet are adjacent to one another. A supply of alternating current is coupled to the magnets so as to alternate the polarity of one of the movable and stationary magnets and to thereby to cause reciprocating linear output to drive the operable production device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.