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2 021 546

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C1

(51)

IPC

(21) (22)

Application

4841116/29, 1990-05-23

(22)

Actual filing date

1990-05-23

(45)

Published

1994-10-15

(72)

Inventor

Babajlov B.G.Minenkov V.I.Il'Jashenko Ju.I.

(73)

Holder

Lermontovskoe Proizvodstvennoe Ob"Edinenie

ELECTRIC PUMP Russian patent published in 1994 - IPC

Abstract RU 2021546 C1

FIELD: mechanical engineering. SUBSTANCE: fluid to be pumped fills space of the electric motor when electric motor starts. Bearings made of metal-Teflon belt operate in dry friction regime. Thermosiphon circulation of fluid and pressure drop at inlet and outlet of the pump provides cooling the electric motor in operation. Axial forces is transmitted to a thrust bearing through face surfaces of working wheels and sand kicker. EFFECT: enhanced reliability. 1 dwg

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RU 2 021 546 C1

Authors

Babajlov B.G.

Minenkov V.I.

Il'Jashenko Ju.I.

Dates

1994-10-15—Published

1990-05-23—Filed

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