Dual pump metering dilution apparatus

Details Dual pump metering dilution apparatus Dual pump metering dilution apparatus

1991-10-03

1992-09-15

Cohan, Alan

Fluid handling

Self-proportioning or correlating systems

Self-proportioning flow systems

137111, F04D 2516

Patent

active

051469448

ABSTRACT:
Apparatus for dilution of one liquid with another, such as a pesticide concentrate diluted with water, wherein dual piston displacement pumps are each actuated respectively by a coil spring and by an opposed hydraulic actuator with a piston powered by the flow of the diluting liquid, the hydraulic actuator being controlled by a control means for alternating reciprocation of the respective pistons of each hydraulic actuator responsive to the rate of flow of the diluting liquid so that a constant dilution ratio is maintained regardless of the pressure of the liquid supply. The control means includes a vane that is pivoted alternately by the action of the hydraulic actuator pistons to direct the flow thereto of liquid for dilution.

REFERENCES:
patent: 2841165 (1958-07-01), Emery
patent: 3498310 (1970-03-01), Hechler
patent: 3650286 (1972-03-01), Armstrong
patent: 4529000 (1985-07-01), Funk

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