Energy saving pump with multiple impellers

摘要

A centrifugal pump incorporates multiple impellers which are driven by a shaft at constant speed. To engage an impeller, a ball end rod is operated, which interacts with an integral structure which comprises a disc, connector or a support collar, and face gear as linking means. The integral structure is further coupled with the impeller. During engagement, a linking means which is mounted on the impeller and also on the integral structure get coupled together resulting in engaging the impeller for rotation. The impellers can be engaged and disengaged according to the flow requirements thereby saving the energy.

主权项

1. A pump comprising:
a casing enclosing a plurality of impellers; a driving means to drive the plurality of impellers; the plurality of impellers comprising at least one non-disengageable impeller and at least one disengageable impeller, wherein the at least one disengageable impeller is capable of engaging or disengaging with the driving means according to the flow requirement of the pump; an engaging means comprising: an operating means; and an integral structure being operated by the operating means and interacting with the at least one disengageable impeller; and at least one pair of linking means for engaging the at least one disengageable impeller with the driving means; wherein said at least one disengageable impeller becomes engaged with the driving means by operating the integral structure by operating means.