Independent Nozzle Injection Control System For Sprayers

摘要

By injecting a chemical fluid and a carrier fluid directly at each nozzle, and by then mixing the fluids at each nozzle to produce a mixed fluid, an improved spray system may be provided which does not contaminate the tank or distribution system with chemical fluid and which allows improved spraying with minimal delay. Accordingly, a system is provided on a field sprayer for independently controlling the flow rate of concentrated chemical fluid to individual spray nozzles using a high pressure chemical distribution rail or loop routed to each nozzle and solenoid injection valves to control the flow of chemical fluid to each nozzle independently.

主权项

1. A spray system for use with an agricultural sprayer comprising:
a first distribution rail for distributing a first fluid; a second distribution rail for distributing a second fluid; a plurality of valves in communication with the second distribution rail, and a plurality of spray nozzle assemblies, each spray nozzle assembly providing first and second inlets for receiving first and second fluids, respectively; a mixing chamber for mixing the first and second fluids to provide a mixed fluid, and an outlet for spraying the mixed fluid, wherein the first inlet of each spray nozzle assembly is in communication with the first distribution rail for receiving the first fluid, the second inlet of each spray nozzle assembly is in communication with a valve for receiving the second fluid, and the second distribution rail distributes the second fluid at a higher pressure than the first distribution rail distributes the first fluid.