FIELD: pumps.
SUBSTANCE: invention relates to submersible vane pumps used for oil production. Borehole vane sectional pump comprises housing 1, in inner cavity of which on common shaft there is at least one section consisting of main module 3 and distribution module 4. Module 3 comprises rotor with vanes in its radial slots, stator with two openings for fluid inlet and two for fluid injection, with size commensurable with size of pressure chamber, end discs – lower and upper with openings for fluid inlet and injection. Module 4 comprises housing with two fluid inlet holes, in which there are check valves and two holes for fluid injection into main channel 18 made in housing 1. Housing 1 has cutouts in side surface for fluid inlet, combined with openings in stator. On one side, housing 1 is connected to flange 20, and on the other side – to cover 21.
EFFECT: invention is aimed at efficient increase of submersible vane pump performance.
4 cl, 7 dwg
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