FIELD: oil producing industry. SUBSTANCE: invention relates to multistage oil well pumps designed for pumping out formation fluid. Stage of proposed submersible centrifugal pump has working wheel and guide vane assembly. Diameter of arrangement of leading edges of blades exceeds diameter of outer disk of guide vane assembly. Dihedral non-through recesses are made on outer edge of upper surface of working wheel driving disk. Two ribs of each recess are located on upper surface of working wheel driving disk. Third rib of each recess is located at distance from upper surface of driving disk decreasing from outer edge of driving disk to center of driving disk. EFFECT: facilitated manufacture of working wheel and reduced thickness of wheel. 4 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| STAGE OF OIL-WELL MULTI-STAGE CENTRIFUGAL PUMP | 2001 |
|
RU2196252C2 |
| STAGE OF OIL-WELL MULTISTAGE PUMP | 2001 |
|
RU2201533C2 |
| STAGE OF SUBMERSIBLE CENTRIFUGAL MULTISTAGE PUMP | 2002 |
|
RU2213887C1 |
| STAGE OF OIL WELL CENTRIFUGAL PUMP | 2001 |
|
RU2193692C1 |
| CENTRIFUGAL MULTI-STAGE PUMP IMPELLER | 2001 |
|
RU2196256C2 |
| CENTRIFUGAL MULTI-STAGE PUMP IMPELLER | 2001 |
|
RU2196255C2 |
| IMPELLER OF CENTRIFUGAL MULTI-STAGE PUMP | 2001 |
|
RU2196257C2 |
| DISPERSER OF SUBMERSIBLE CENTRIFUGAL PUMPING UNIT | 2001 |
|
RU2192560C2 |
| MODULE-SECTION OF MULTISTAGE SUBMERSIBLE CENTRIFUGAL PUMP | 2000 |
|
RU2186251C2 |
| CENTRIFUGAL OIL-WELL PUMP STAGE | 2001 |
|
RU2196253C1 |
