LIQUID SPRAYER Russian patent published in 2003 - IPC

FIELD: agricultural engineering. SUBSTANCE: liquid sprayer has perforated hollow cylinder formed of two washers, central bushing and screen. Annular bore is formed in central bushing to define together with receptacle opening inner wall with inner conical surface and outer wall with outer cylindrical surface. Equally spaced radial openings are formed in outer wall. Annular channel of accumulating vessel is connected to annular slot defined between central bushing inner wall and inner surface of washer arranged at side adjacent to engine and is directed to conical surface of cylinder inner wall. Liquid sprayer is used for treating field crops by moving over horizontal surface within 2.5-3 m diameter circle to provide for uniform spraying of water-soluble chemical reagents. Drop dispersion size is 80-250 microns and working fluid flow rate is up to 3 l/min. EFFECT: increased efficiency and simplified construction. 3 cl, 1 dwg