| 摘要 |
<p>The present invention concerns a pump that includes a drain path for a liquid and a drain unit configured to realize the suction of the liquid along the path. In accordance with the invention, the pump further comprises a containment chamber to contain the drained liquid, and one or more than one exiting conduits in fluid communication with the containment chamber. Moreover, one or more than one vertical conduits are provided that develop from the containment chamber upwards and in fluid communication with the containment chamber. In such a manner, the vertical conduits form with the exiting conduits, through the containment chamber, one or more than one vessels communicating one with the other in such a way that the liquid that is drained by the drain unit into the containment chamber re-ascends along the exiting conduits towards the level of liquid contained in the vertical conduits.</p> |
