SUBMERSIBLE CENTRIFUGAL HIGH-LIFT ELECTRIC PUMP FOR LIFTING LIQUID FROM WELLS Russian patent published in 1996 - IPC

Abstract RU 2065531 C1

FIELD: submersible centrifugal electric pumps for pumping petroleum out of wells. SUBSTANCE: provided in upper portion of casing at level of upper bandage tightly pressing the diaphragm to compensator base and above this bandage are through radial holes for communicating the interior between compensator diaphragm and its casing with hole clearance. EFFECT: enhanced reliability. 2 dwg

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RU 2 065 531 C1

Authors

Snisarenko Grigorij Nikolaevich

Dates

1996-08-20—Published

1995-09-07—Filed