×

Electrical generator and electric motor for downhole drilling equipment

  • US 10,240,435 B2
  • Filed: 06/14/2013
  • Issued: 03/26/2019
  • Est. Priority Date: 05/08/2013
  • Status: Active Grant
First Claim
Patent Images

1. An electrical generator positionable in a wellbore, the electrical generator comprising:

  • a tubular housing having a first longitudinal end and a second longitudinal end, said tubular housing having an internal passageway, said passageway having a plurality of layers positioned therein, said layers comprising at least a first protective layer, a second protective layer, and an electrically conductive layer positioned between the first and second protective layers, said layers defining an internal fluid cavity with a longitudinal axis, said electrically conductive layer electrically coupled at a first end to a first electrical end conductor positioned proximal to the first longitudinal end of the tubular housing and electrically coupled at a second end to a second electrical end conductor positioned proximal to the second longitudinal end of the tubular housing, anda shaft with two or more magnetic inserts positioned at different longitudinal locations along a length thereof, said shaft movable longitudinally in the internal fluid cavity of the housing;

    wherein the electrically conductive layer comprises one or more conductive strips configured as one or more spirals formed about an inner surface of the tubular housing, the one or more conductive strips configured as one or more spirals positioned proximate the two or more magnetic inserts.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×