FIELD: oil producing industry; oil-well sucker-rod pumps.
SUBSTANCE: invention relates to positive displacement hydraulic machines including hydraulic and pneumatic device used for actuating oil-well sucker-rod pump designed for lifting liquids from depth. Proposed drive contains working cylinder whose piston has unit for connection with lifting device and unit for accumulation of energy provided with flywheel connected with electric motor shaft. Pump is connected with electric motor by clutch coupled with control members, and energy accumulating unit is provided additionally with pneumoaccumulator connected with tight hydraulic tank.
EFFECT: simplified design, increased reliability and economy.
2 cl, 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| LIFTING DEVICE HYDRAULIC DRIVE | 2004 |
|
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