Two-piece nozzle for aerosol dispensers

Two-piece nozzle for aerosol dispenser, comprising

• an outer piece provided with a tubular wall open on one side and closed on the other by a front wall, forming a cavity, the front wall being provided in a center thereof with an outlet opening, the outer piece having a certain symmetry about an axis of symmetry,
• an inner piece separate from the dispenser for which the nozzle is intended, the inner piece being dimensioned to penetrate into the cavity of the outer piece and be retained there, the inner piece having a front face facing the front wall of the outer piece,
• channels provided in the cavity of the outer piece and/or on a surface of the inner piece, wherein the channels open into a turbulence chamber in communication with the outlet opening, the outlet opening being placed in the flow path of the product flow downstream of the turbulence chamber,
• wherein each of the cavity of the outer piece and the inner piece has a shape of a cylinder of revolution or of at least a portion of a cone of revolution about the axis of symmetry, and
• wherein the channels are divided into (i) lateral channels made in an envelope of the cylindrical or frustoconical shape of at least one selected from the group consisting of the inner niece and the cavity of the outer piece, and (ii) converging channels made in the front wall of the outer piece or in the front face of the inner piece.