Patent ID: 7036753
Filing Date: 2006-05-02
Classification: B05B,F23J

Abstract:
1. A nozzle for atomizing and spraying liquid comprising: a longitudinal liquid flow passageway that terminates in a liquid orifice for directing a stream of liquid along a predetermined axis; a plurality of intersecting, transverse passageways extending perpendicular to and intersecting the predetermined axis, each of the transverse passageways terminating at either end in an outlet, the transverse passageways defining a first impingement surface downstream of the liquid orifice for breaking up a stream of liquid impinging thereon into a laterally spreading dispersion which disperses through the transverse passageways, wherein the longitudinal liquid flow passageway includes a portion having a reduced cross-sectional area relative to the remainder of the longitudinal liquid flow passageway, the reduced cross-sectional area portion being arranged at a downstream end of the longitudinal liquid flow passageway for enhancing the velocity of a liquid flowing therethrough and having a cross-sectional area less than the cross-sectional area of each of the transverse passageways; an air annulus arranged in surrounding relation to the outlets of the transverse passageways and oriented to discharge air in a downstream direction so as to strike the fluid dispersed through the outlets of the transverse passageways; and an expansion chamber arranged downstream of the transverse passageways and air annulus, the expansion chamber communicating with a nozzle discharge orifice.