Patent ID: 6161778
Filing Date: 2000-12-19
Classification: B05B

Abstract:
An air assisted spray nozzle assembly comprising:a nozzle body having a liquid inlet passage and a gas inlet passage, andan air cap disposed at a downstream end of the nozzle body, the air cap including an outer body member having an inner bore extending from an open upstream end thereof, a fluid directing insert arranged in the inner bore of the outer body and having a passage extending therethrough which communicates with the liquid inlet passage, an impingement element arranged in the inner bore of the outer body downstream from the fluid directing insert and defining an impingement surface spaced from and opposing the passage in the fluid directing insert for deflecting a stream of liquid impinging thereon in a radially outward direction, the outer body including a plurality of longitudinally extending discharge passages arranged in surrounding relation to and extending downstream in relation to the impingement surface, each discharge passage having a discharge orifice therein for directing fluid in an inward flow path such that the flow paths produced by the respective discharge orifices impinge on one another and atomize the liquid.