Invention Grant
US08943950B2 Reciprocating pump flow control 有权
往复泵流量控制

Reciprocating pump flow control
Abstract:
A multi-throw reciprocating pump is provided. The pump provides active stroke control. Fluid flow is controlled by canceling out at least a portion of a discharge stroke of one plunger with a suction stroke of another plunger. Controlling the degree to which the discharge stroke is cancelled out is used to control the actual volume of fluid being pumped.
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