FIELD: engines and pumps.
SUBSTANCE: unit includes housings 10, 22, 23, 26, centrifugal screw pump, screw 14 and turbine 2. Pump includes centrifugal impeller 4 with hub 5 having inner cavity 32, and installed on outer shaft 3 which is installed in bearing 7 protected with seal 45. Turbine 2 includes two stages 15, 16 with guide vanes 21, 22 and impellers 17, 18. Inner shaft 11 is installed inside shaft 3 on bearings 12, 13. Turbine 2 is birotary. Impellers 17, 18 of turbine 2 are installed on outer and inner shafts 3, 9 respectively, and screw 14 is installed on outer shaft 3.
EFFECT: improving cavitation properties of pump included in turbo-pump unit, and removing axial forces from inner and outer shafts.
3 cl, 6 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| TURBINE-DRIVEN PUMP ASSEMBLY | 2009 |
|
RU2414627C1 |
| TURBO-PUMP UNIT | 2009 |
|
RU2418989C1 |
| LPRE TURBO PUMP UNIT | 2009 |
|
RU2409753C1 |
| TURBO-PUMP UNIT | 2009 |
|
RU2418986C1 |
| ROCKET ENGINE TURBOPUMP ASSY | 2009 |
|
RU2418194C1 |
| TURBO-PUMP UNIT | 2009 |
|
RU2418988C1 |
| LPRE TURBO PUMP UNIT | 2009 |
|
RU2406860C1 |
| TURBO-PUMP UNIT OF THREE-COMPONENT ROCKET ENGINE | 2009 |
|
RU2425247C1 |
| TURBINE PUMP | 2009 |
|
RU2423621C1 |
| TURBO-PUMP UNIT OF ROCKET ENGINE | 2012 |
|
RU2481489C1 |
