Electric motors and related systems for deployment in a...

Details Electric motors and related systems for deployment in a... Electric motors and related systems for deployment in a...

E - Fixed Constructions

21

B

E21B 4/04 (2006.01)

Patent

CA 2715731

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.

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