MULTI-MEDIA NOZZLE， IN PARTICULAR TWO-MEDIA NOZZLE

The invention relates to a multi-media nozzle， in particular two-medianozzle， for atomising a fluid using an atomising medium， comprising a nozzle body (1) having at least one outer tube (2)， an inner tube (3) arranged in the outer tube， and a nozzle needle (4) arranged in the inner tube such that it can be moved in the longitudinal direction (L)， and comprising a drive (5) for the moving of the nozzle needle (4) in the longitudinal direction (L). An inner ring channel (6) for the fluid is arranged between the nozzle needle (4) and inner tube (3) and an outer ring channel (7) for the atomising medium is arranged between the outer tube (2) and inner tube (3)， wherein the inner tube (3) has an end-side outlet opening (8) for the fluid， which connects at the end to the inner ring channel (6)， wherein the nozzle needle (4) can be introduced into the outlet opening (8)， in order to close the outlet opening (8) with its needle end (16)， in such a way that， in the closed position of the nozzle needle (4)， an outer closing surface (17) surrounding the nozzle needle (4) all around the outer circumference lies against a corresponding inner closing surface (18) in the inner tube. The nozzle is characterised in that a control surface (20)， formed by a control cone (19) and inclined transverse to the needle axis (A)， is arranged on the nozzle needle (4) on the side of the outer closing surface (17) facing away from the needle end (16)， spaced apart from said closing surface and positioned all around the outer circumference， wherein by moving the nozzle needle (4) in the longitudinal direction (L)， the control surface (20) cooperates with an inner surface (21) of the inner ring channel (6) in such a way that the through-flow through the inner ring channel (6) can be changed.