| 摘要 |
<p>The inventive device comprises a submerged electric motor provided with a hydroprotection and cinematically connected to a driven pump, an operating pump actuated by a hydraulic engine which comprises a reciprocating mechanism for moving the rod of the operating pump, a hydraulic control valve connected to a control unit for the driven pump by means of a pipeline and the compensator ofa hydraulic actuator. The reciprocating mechanism for moving the rod of the operating pump comprises power and return hydraulic cylinders which are connected by means of rods and embodied in such a way that it is possible to switch over the positions of the hydraulic control valve at the end-of-travel of the rod of the hydraulic engine. In addition, the control unit for the driven pump comprises a unit for protection the hydraulic actuator against the reverse rotation of the electric motor shaft. The compensator of the hydraulic actuator is arranged in the top part of the device above the operating pump.</p> |
