VARIABLE VENTURI DEVICE WITH ADJUSTABLE VALVE STEM

摘要

A fluid injection device includes a housing and a valve stem. The housingincludes aninlet arm having an inlet orifice for receiving a feeder fluid. An outlet armhas an outlet orificeto discharge a mixed fluid. A venturi tube is between the inlet and outletarms. The inlet arm,veturi tube and outlet arm define a nonlinear fluid pathway where the venturitube redefines aportion of the nonlinear fluid pathway as a constricted fluid pathway. Adiverter port is used todivert a portion of the feeder fluid from the inlet arm into the container andan injection port isused to receive product from the container. A valve arm is collinearly alignedwith the venturitube and the valve stem is positioned within the valve arm and adjusts thevolume of theconstricted fluid pathway.