DEVICE FOR LIQUID FERTILIZER INJECTION IN IRRIGATION WATER Russian patent published in 2018 - IPC A01C23/04 

FIELD: agriculture.

SUBSTANCE: invention relates to agriculture, in particular to devices for the application of agrochemicals with irrigation water, and can be used on sprinkling and irrigation machines, various irrigation installations and pressure irrigation pipelines for the introduction of liquid fertilizers, herbicides and other working compounds of pesticides with irrigation water. Device contains a container for liquid fertilizers, a pressure pipeline with a latch, a perforated pipeline, hydraulic communication channels, ejector, stop valves, filters, a metering pump connected through check valves to an ejector, and a hydraulic motor with working cavities and a piston kinematically connected through a rod, on the one hand with a metering pump, and on the other side via a spring-loaded switch with a hydraulic distributor. Hydraulic distributor is made in the form of a casing with radial inlet and outlet channels on one side and two working channels on the other side, end caps with elastic washers and a rod with seats, travel stop and stop. Inlet channel is connected through a filter with a pressure pipe up to the gate. Output channel is configured to communicate with a perforated conduit or ejector. Working channels are communicated with the working cavities of the hydraulic motor.

EFFECT: with this performance, the reliability of the device increases and the range of its application is extended by ensuring the operation of the device, both with the discharge and without the discharge of water exhausted by the hydraulic motor into the atmosphere.

1 cl, 8 dwg