SPRAYER WITH CONTROLLABLE SPRAY BEAM Russian patent published in 2003 - IPC

FIELD: agricultural engineering. SUBSTANCE: sprayer has casing, spraying disk, feeding pipe, housing comprising liquid collecting vessel, additional spraying disk, and blades radially mounted between two horizontal spraying disks to form fan. Lower spraying disk is movably joined to immovable casing equipped with slot and is provided with projection positioned in its lower part and inlet opening. Casing has fan inlet cavity and opening for communicating said cavity through feeding pipe with liquid collecting vessel, which is made integral with housing formed as closed cylinder with cut-off section. Sprayer allows power and liquid consumption to be reduced due to recirculation of unused portion of liquid. EFFECT: simplified construction, enhanced reliability in operation and increased efficiency. 1 dwg