| 摘要 |
<p>A centrifugal pump (1) capable of accomodating entrained gas and vapour at low absolute suction pressures. The pump includes an impeller (6) mounted for rotation about an axis, the impeller having a central inlet chamber (12) with a peripheral wall concentric with the axis and at least one passage (13) extending outwardly from an inlet port in the peripheral wall to an exit port (14) radially spaced from the chamber. Preferably, the pump includes a stationary inlet port means located within the central chamber for separating the spinning impeller from incoming fluid.</p> |
