FIELD: engines and pumps.
SUBSTANCE: invention may be used primarily in petroleum industry, in particular, in pump units intended for pumping over viscous liquids, for example, for forcing preflush fluids into the well. The drive housing accommodates a transmission and main shafts. A pair of driving gears is fitted on the transmission shaft engaged with toothed rims of composite driven gears with their hubs made integral with the cams and fitted on the main shaft. Note that the connecting rods greater journals run in the bearings supported by the said cams. The said hubs are jointed together with a cylindrical fit at the hub central part aligned with corresponding cam. Every connecting rod is linked via a slipper with the corresponding hydraulic cylinder piston rod.
EFFECT: higher reliability of the piston pump and higher manufacturability.
5 cl, 4 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| INTERNAL COMBUSTION ENGINE | 1997 |
|
RU2146010C1 |
| HYDRAULICALLY-OPERATED RECIPROCATING DOUBLE-ACTING PUMP | 2004 |
|
RU2258156C1 |
| GAS AND GAS-LIQUID INJECTION UNIT | 2009 |
|
RU2395717C1 |
| COMPRESSOR WITH POSSIBILITY OF WORKING CYLINDERS REPLACEMENT | 2023 |
|
RU2819971C1 |
| THREE-PISTON DRILLING MACHINE OF UNILATERAL ACTION | 2020 |
|
RU2739103C1 |
| METHOD FOR OBTAINING MECHANICAL ENERGY FROM ACTION OF GAS PRESSURE AND PISTON EXPANDER FOR ITS IMPLEMENTATION | 2023 |
|
RU2814992C1 |
| MULTICYLINDER PUMP DRIVE | 2006 |
|
RU2307952C1 |
| THREE PISTON SINGLE ACTION DRILLING PUMP | 2021 |
|
RU2770342C1 |
| VANED INTERNAL COMBUSTION ENGINE | 2017 |
|
RU2659602C1 |
| THREE-PISTON SINGLE-ACTING MUD PUMP IN MOTOR TRANSPORT VERSION | 2023 |
|
RU2824096C1 |
