CENTRIFUGAL PUMP WITH SERRATED IMPELLER

摘要

A centrifugal pump and an impeller thereof are provided. The impeller defines an outer peripheral edge which includes a plurality of serrations circumferentially thereon. The plurality of serrations are configured such that additional power and momentum are transferred to a working fluid of the pump, which results in an additional pressure rise in the working fluid at relatively low flow rates of the centrifugal pump.

主权项

1. An impeller for a centrifugal pump, the impeller comprising:
a disc shaped shroud having a central axis, and a central hub circumscribing the central axis; a disc shaped base plate having a central axis coaxial with the central axis of the shroud, the base plate having a plurality of vanes extending from a first surface of the base plate; wherein the shroud includes a plurality of serrations formed circumferentially along a periphery of the shroud; wherein the base plate includes a plurality of serrations formed circumferentially along a periphery of the base plate; and wherein the shroud is mounted against the base plate.