PNEUMATIC VORTEX NOZZLE Russian patent published in 2018 - IPC B05B1/34 B05B7/00 B05B1/26 

FIELD: devices for spraying of liquids.

SUBSTANCE: invention relates to devices for liquids, solutions spraying. Pneumatic vortex nozzle comprises a housing with the swirling chamber and nozzle. Body is made in the form of a supply fitting with a central hole and rigidly connected to it and a coaxial cylindrical sleeve with an internal thread and an expansion chamber coaxial to the housing. Nozzle made as a inverted barrel is attached to the sleeve by the thread coaxially to the casing in its lower part. A fluid flow swirler is made in the barrel bottom and is fitted by at least two cylindrical inlets inclined to the nozzle axis and made in the nozzle end surface. Central cylindrical throttle opening connected to the mixing chamber of the nozzle, in series connected to the diffuser outlet chamber. In the diffuser outlet chamber a divider installed, made in the form of two or at least three spokes, each of which is secured by one end to outlet diffuser chamber outer surface perpendicular to its surface generatrices. Other end of at least three spokes is fixed in the surface of the body of rotation in the form of a ball, whose axis coincides with the diffuser outlet chamber axis, and the body of revolution itself is located in lower part behind outlet diffuser chamber section. Other end of the two spokes is fixed on the axis, on which the body of rotation is mounted with possibility of rotation, made in the form of a ball, which center lies on the diffuser output chamber axis, to the end surface of the cylindrical sleeve, coaxial with the body. Coaxially to the diffuser chamber a diffuser is attached, which slice surface lies in plane located below splitter body of revolution surface. Surface of body of revolution made in form of ball mounted on axis with possibility of rotation, is made perforated. To the body of rotation surface, made in the form of a ball mounted on the axis with possibility of rotation, its rotation carrying elements are installed, in the form of the helical blades segments. On the central cylindrical orifice inner surface located in the end surface of the nozzle, helical grooves are made for the fluid flow additional swirling. Located in the nozzle end surface central cylindrical orifice, is axisymmetrically connected to the compressed air supply tube into the nozzle mixing chamber, in series connected to the diffuser outlet chamber. Fluid supply through the tube is performed into located coaxially to the body cylindrical sleeve expansion chamber. In the cylindrical sleeve wall a Helmholtz resonator is located, made in the form of chamber with resonant insert located perpendicular to the nozzle body axis. Resonant insert cut is located in the nozzle mixing chamber.

EFFECT: technical result of invention is increasing spraying efficiency by spray cone increasing.

1 cl, 2 dwg