Patent ID: 6267301
Filing Date: 2001-07-31
Classification: B05B

Abstract:
An air assisted spray nozzle assembly comprising:a nozzle body having a liquid inlet passage and a gas inlet passage, an air cap disposed downstream of said nozzle body, said spray nozzle assembly having a liquid discharge orifice in communication with said liquid inlet passage for discharging a liquid flow stream axially through said air cap, said air cap having a pair of diametrically opposed and longitudinally extending air passages on opposite sides of said liquid discharge orifice, said air passages each having a transverse deflector flange at an axial end of the air passage, said air cap including a pair of inwardly tapered deflector surfaces, each tapered deflector surface being opposite a respective one of the transverse deflector flanges and extending at an acute angle relative to the portion of the longitudinal axis of a respective one of said air passages downstream from said deflector surfaces, and said deflector flanges having inner radial sides which are diametrically spaced apart a distance less than the diametric spacing of the axes of said longitudinal air passages such that substantial portions of the air streams directed through said air passages impinge said transverse deflector flanges and are directed into inward impacting relation with opposite sides of the discharging liquid flow stream for atomizing the liquid flow stream and directing it into a predetermined spray pattern.