OIL-WELL SUCKER-ROD PUMP Russian patent published in 1999 - IPC

Abstract RU 2140571 C1

FIELD: oil industry. SUBSTANCE: device has cylinder, plunger with branch pipe communicating with outer surface of plunger. Rod is coupled with plunger by means of piston pump through its cylinder, piston and rod. Suction space of piston pump has filter-moisture separator, and delivery space is connected with branch pipe. EFFECT: increased service life of pump owing to improved lubrication of plunger pair. 2 dwg

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RU 2 140 571 C1

Authors

Shurinov V.A.

Pykhov S.I.

Kozlovskij A.M.

Bezzubov A.V.

Dates

1999-10-27—Published

1998-12-15—Filed