rotary pump

American  

noun

1. a pump for transferring water or other fluids by the rotating action of its component parts, as by the meshing of vanes or screws.

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rotary pump British  

noun

1. engineering a pump in which a liquid is displaced through a shaped stator by a shaped rotor

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Example Sentences

Firemen ran an air hose down the well, began pumping air down by a rotary pump.

From Time Magazine Archive

The tide had covered the wreck, but the big rotary pump was running and, since the men had loosened the top of the cargo, it lifted the slimy stuff.

From Lister's Great Adventure by Bindloss, Harold

The Sorata would not lie-to without somebody at the helm, and he could only leave the tiller lashed for a few minutes now and then while he labored at the little rotary pump.

From Thrice Armed by Bindloss, Harold

The advantage possessed by a rotary pump is that it keeps the water passing through the suction in a continuous and uniform stream, as it has no valves.

From Modern Machine-Shop Practice, Volumes I and II by Rose, Joshua

If a rotary pump leaks, the efficiency is not impaired so much as in a piston or plunger pump, all that is necessary being to run the pump at a high speed.

From Modern Machine-Shop Practice, Volumes I and II by Rose, Joshua