Patent ID: 7648087

Claim:
A spray nozzle assembly for atomizing a medium through a nozzle channel, comprising a first channel portion ( 26 ) which is tapered by two lateral surfaces ( 28 ) facing each other to form an elongate narrow cross-sectioned surface ( 36 ); a passage orifice ( 16 ) disposed in the narrow cross-sectioned surface ( 36 ) a cross-sectional area of which is smaller than is the narrow cross-sectioned surface ( 36 ), and a second channel portion adjoining the passage orifice ( 16 ) in the direction of medium flow which has two opposed lateral surfaces separating from each other with an increase in distance from the passage orifice ( 16 ), whose edges facing the passage orifice ( 16 ) extend crosswise to a longitudinal direction of the narrow cross-sectioned surface ( 36 ), characterized in that the nozzle channel having the first and second channel portions and the passage orifice ( 16 ) is configured inside an integrally formed plastic component, and further characterized in that the second channel portion is confined, between its two lateral surfaces ( 18 ), by two bordering surfaces ( 20 ) disposed to be approximately perpendicular to a plane of the passage orifice which are at a lateral distance from the passage orifice ( 16 ).