Linear electric motor for an oilfield pump

Linear electric motor for an oilfield pump

  • CN 101,382,123 A
  • Filed: 04/28/2008
  • Published: 03/11/2009
  • Est. Priority Date: 04/26/2007
  • Status: Active Application
First Claim
Patent Images

1. oil field pump assembly comprises:

  • Plunger with respect to the cavity to-and-fro motion, leaves cavity with the guiding fluid;

    WithLinear electric motor are connected to plunger, are used for described to-and-fro motion.

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