SPRAY NOZZLE AND METHOD OF MANUFACTURING SAME

摘要

A method of forming an atomizing spray nozzle (42) includes the steps of etc hing a swirl chamber (56) ant a spray orifice (44) in a thin sheet of material (46). The swirl chamber (56) is etched in a first sid e of the disk (46) ant the spray orifice (44) is etched through a second site to the center of the swirl chamber (56). Peed slots (58 - 64) ar e etched in the first side of the disk (46) extending no n-radially to the swirl chamber (56) such that liquid can be conveyed to the swirl cham ber (56) so as to create ant sustain the swirling motion . An inlet piece (40) with inlet passage (88 - 90) therein is connected with firs t side of the disk (46) so as to convey liquid to the fe et slots (58 - 64) of the disk (46) ant to enclose the feet slots (58 - 64) and swirl cha mber (56). In addition to the method described an atomiz ing spray nozzle (42) having the configuration described is much improved in its spray characteristics. The present invention also provi des a method of forming a number of spray nozzles simultaneously in a single manuf acturing process.