| 摘要 |
The invention relates to a pump ( 10 ) for the drawing-in of a fluid, comprising at least one centrifugal wheel ( 14 ) having a fluid inlet edge ( 48 ) and a fluid outlet edge ( 44 ), the pump further comprising an axial balancing system ( 32 ) comprising a high-pressure flow space ( 34 ) defined between the housing and an upstream face ( 36 ) of the centrifugal wheel ( 14 ). The invention is characterised by the fact that the axial balancing system ( 32 ) further comprises means ( 52 ) for substantially increasing the hydrostatic pressure of the fluid circulating in the high-pressure flow space ( 34 ) during operation of the pump ( 10 ).
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