MULTISTAGE SUBMERSIBLE CENTRIFUGAL PUMP WITH END FACE SELF-ADJUSTING SEAL Russian patent published in 2005 - IPC

Abstract RU 2249129 C2

FIELD: oil producing industry; submersible pumps.

SUBSTANCE: proposed pump contains set of stages assembled in cylindrical housing and consisting of operating impellers and fixed guide-vane assemblies with bores in journals used as radial supports of pump rotor. Washers pressed by springs to journals of guide-vane assemblies are installed between impellers and guide vane assemblies. Invention provides protection of holes in guide-vane assemblies and protective bushings of shaft from penetration of large abrasive particles into clearances.

EFFECT: increased service life of pump.

1 dwg

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RU 2 249 129 C2

Authors

Volkov V.N.

Bibikov S.V.

Dates

2005-03-27—Published

2002-05-23—Filed