| 摘要 |
<p>A spray nozzle is provided herein which serves for dispensing a liquid, which is subject to an elevated pressure, in form of a spray. The nozzle comprises (A) a housing having a central nozzle outlet and a central nozzle axis therethrough, and (B) a hollow nozzle interior which is surrounded by a side wall and through which liquid flows towards the nozzle outlet. The hollow nozzle interior comprises (a) a discharge chamber located upstream of the nozzle outlet on the inside and arranged coaxially with, and along a central plane perpendicular to, the central axis of the nozzle outlet, (b) an annular chamber arranged coaxially to the discharge chamber, (c) at least two feed channels which connect the annular chamber to the discharge chamber, which lead to the latter at least approximately tangentially to the periphery of the discharge chamber and which each run in a plane intersecting the central axis of the nozzle, the feed channels and the annular chamber forming a first stage of turbulence, and (d) at least one supply duct for feeding liquid to the first stage of turbulence. In this nozzle, the hollow interior of the nozzle comprises (1) at least one additional stage of turbulence, and, (2) on the side of the hollow nozzle interior, between a stage of turbulence which is upstream of the direction of flow and the stage of turbulence which is immediately downstream thereof, at least one obstacle which serves to break up the liquid flowing from the upstream stage of turbulence to the downstream stage of turbulence and which deflects the flowing liquid out of a flow plane, extending through the annular chamber in a direction perpendicular to the central axis of the nozzle, towards the side of the nozzle outlet by an angle of up to 90.degree..</p> |
