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2 122 653

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IPC

(21) (22)

Application

98106050/06, 1998-04-09

(22)

Actual filing date

1998-04-09

(45)

Published

1998-11-27

(72)

Inventor

Jalovega S.N.Jalovega N.V.Belanov K.A.

(73)

Holder

Jalovega Sergej NikolaevichJalovega Nikolaj Vasil'EvichBelanov Konstantin Aleksandrovich

SUBMERSIBLE ELECTRIC PUMPING UNIT Russian patent published in 1998 - IPC

Abstract RU 2122653 C1

FIELD: lifting oil or water from wells, reservoirs and water basins. SUBSTANCE: submersible electric pumping unit includes parametric submersible electric motor and multi-stage module-type submersible pump. Impellers fitted on pump shaft have closed passages located radially. Cross section of these passages smoothly reduces from center to periphery. Outlet holes of passages are turned in way of inlet of impeller of next module of pump. EFFECT: reduction of hydraulic losses; increased pressure head in pump not provided with guide apparatus. 4 cl, 4 dwg

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RU 2 122 653 C1

Authors

Jalovega S.N.

Jalovega N.V.

Belanov K.A.

Dates

1998-11-27—Published

1998-04-09—Filed