| 摘要 |
FIELD: engines and pumps. ^ SUBSTANCE: proposed pump comprises casing 1 with intake and discharge branch pipes 10 and 15, shaft 6 coupled with rotary housing 3 and impeller that comprises cover plates 13 and radial blades 12. Intake branch pipe 10 has scroll intake 9, while discharge branch pipe 15 features scroll outlet. Bottomless scoops 8 are attached to cylindrical rotary housing 7. Said scoops 8 are directed radially from housing 7 into scroll intake 9 to make intaking scoop wheel. Inner surface of housing 7 accommodate axial adjustable-angle blades 11. Hosing 7 has cut openings receiving blades 12 with cover plates 13 to make impeller that enters scroll outlet 14. Hollow fixed bush 2 with holes 3 receiving shaft 6 is arranged along pump axis directed from casing 1 towards suction side. Casing 1 has bores 4 to release separated gas, which communicate with the space of bush 2. ^ EFFECT: higher head and efficiency, ruled out cavitation, improved separation of gas-containing fluid. ^ 3 dwg |
