Spray nozzle

A spray nozzle consisting of a body defining an axial cavity and having, at one of its ends, an axial inlet orifice for liquid to be sprayed and, at the other end, a spray orifice, said nozzle having a direction of flow from the inlet orifice to the spray orifice and comprising, housed in said cavity, from upstream to downstream with reference to said direction of flow of the liquid, a disk having an axial passage for calibrating the flow of liquid, this passage communicating directly with said inlet orifice, a “divergent” component whose geometry is designed to divide the flow of liquid into small streams and set them in rotation, and a “convergent” component having an axial passage which communicates with said spray orifice and whose geometry is designed to gather said small streams together and to discharge a single cone-shaped jet and to assist in obtaining the desired spraying angle, said calibration disk being secured to a plug fitted hermetically into the cavity in the nozzle body, said divergent part being an independent component immobilized in the cavity in said nozzle body at a level such that a chamber is formed between said divergent part and said convergent part and said convergent part being secured to said nozzle body,

• characterized in that said divergent part is immobilized in the cavity in the nozzle body, on the downstream side, by simply bearing against a suitably profiled region of the wall of said cavity and, on the upstream side, by said plug.