PUMPING UNIT Russian patent published in 1996 - IPC

Abstract RU 2056531 C1

FIELD: oil well operation; lifting of liquids from depth. SUBSTANCE: mounted on output shaft of electric motor are cranks with clamps coupled by connecting units, connecting rods, and equalizer with head. Clamp connecting unit is made in form of two screw-nut drives. Nuts are rigidly secured on clamps. Common screw has two unidirectional threads on ends with different pitch of screw cut engaging with nuts. EFFECT: enlarged operating capability and reliability. 4 dwg

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RU 2 056 531 C1

Authors

Bujanov N.I.

Orlov G.K.

Gutchenko I.A.

Dates

1996-03-20—Published

1993-02-01—Filed