Abstract: A vortex chamber atomizer has a housing consisting of an axially extending casing and end plates which shut off the ends of the casing and of which one has an inlet nozzle therein and the other end plate has an outlet pipe therein, there furthermore being at least two tubular connectors extending through the casing so that the center lines of such connectors are at a distance from, and a right angle to the axis of the housing.In order to obtain an air-liquid mixture with ideal turbulence while avoiding prior segregation within the vortex chamber the housing contains annularly extending internal structures running at a right angle from the face of the casing in a circumferential direction. These internal structures extend into the interior of the housing in such a manner that a cavity is defined in the housing, which is adapted in form to the primary vortex produced in the vortex chamber atomizer.