APPARATUS FOR SPRAYING LIQUID PRODUCT

摘要

A liquid distributor apparatus for use on a vehicle including a liquid product supply tank and a pump for pumping liquid from the tank to a spray bar system for spraying liquid product in a preselected width of the spread along a path traversed by the vehicle. The rate of flow of liquid product through the nozzles on the spray bar system varies as a function of the square root of the pressure drop across the nozzle and a control system is provided to sense the pressure in the spray bar system and the vehicle speed and to control flow of product to the spray bar system to vary the pressure on the product in the spray bar system as a function of the square of the speed of the vehicle to thereby maintain a preset spread density independent of variations in the speed of the vehicle.