FIELD: mechanical engineering.
SUBSTANCE: invention relates to the field of mechanical engineering, in particular, to designs of linear electric submersible pumping units, and can be used in the design of a linear electric engine with permanent magnets. The guide tube of the stator with magnetic field concentrators is made of materials with a hardness of at least 50 (hrc) over the contact area. The hardness of the magnetic field concentrators is 0.7 to 0.9 of the hardness of the surface of the guide tube. The magnetic field concentrators are made of a material with nonlinear magnetic permeability, and the relative magnetic permeability of the material of the guide tube of the stator is not above 1.01.
EFFECT: increase in the wear resistance of the elements of a friction pair with the ensured effective operation of the electromagnetic system of a submersible pumping unit.
8 cl, 2 dwg
