Dilution device for dispensing fluid

A dilution system, comprising:

• a dilution device in fluid communication with a concentrated chemical, the dilution device comprising:
• a metering disc having a cross-sectional thickness, the metering disc defining a metering groove with an inlet portion and a plurality of discrete outlet portion segments, the metering groove formed in a surface of the metering disc and having a depth that is less than the cross-sectional thickness of the metering disc;
• and
• a housing comprising a first housing component coupled with a second housing component,
• wherein the first and second housing components define an interior of the housing enclosing the metering disc, the second housing component defining an inlet in fluid communication with the inlet portion of the metering groove and an outlet in fluid communication with the plurality of discrete outlet portion segments of the metering groove, the inlet and the outlet each extending through the second housing component from the interior to an exterior of the housing, the inlet configured for receiving the concentrated chemical,
• wherein the metering groove defines a tortuous portion fluidly coupling the inlet portion and the plurality of outlet portion segments, wherein the tortuous portion extends in straight lines that form a plurality of V-shapes that intersect a central area of each of the plurality of discrete outlet portion segments,
• wherein during a relative rotation between the metering disc and the first or second housing component, the inlet and the inlet portion are non-movably arranged relative to each other, and wherein such relative rotation causes relative movement between the outlet and the plurality of discrete outlet portion segments to discrete rotational positions that change an effective length of the tortuous portion of the metering groove fluidly coupling the inlet and the outlet;
• and
• an eductor in fluid communication with the outlet and a motive fluid,
• wherein the motive fluid flows through the eductor and creates a suction force that draws the concentrated chemical through the outlet and into a flow path of the motive fluid to mix the concentrated chemical with the motive fluid, and
• wherein a cross-sectional area of the metering groove varies along a length of the metering groove to provide a different flow restriction depending on the effective length of the tortuous portion of the metering groove.