VORTEX ACOUSTIC NOZZLE Russian patent published in 2018 - IPC B05B1/34 B05B1/26 B05B17/04 

FIELD: devices for spraying liquids.

SUBSTANCE: invention relates to fluid and solvent sprayers and may be used in machine building, chemical and food industries. Vortex acoustic atomizer includes casing with a screw coaxially located in the lower part of the casing, and located in case upper part union with cylindrical opening for fluid supply connected to a diffuser, axially symmetric to casing and union. Screw is pressed into housing with the formation of a conical chamber located above the screw, coaxially with the diffuser, and connected with it in series. Screw is made solid. Outer surface of the screw consists of two successively connected surfaces, one of which is at least one-way screw groove with right or left thread and is located inside the housing. Second smooth surface represents a body of revolution axisymmetrically connected with spraying disc located perpendicular to body axis to extend beyond casing bottom end. Both straight line and n-order curve may make a generating line of said surface. Surface of the spraying disc extending beyond the casing bottom end is made bent toward the lower part of the case and has radial cuts on the peripheral part alternating with the continuous part of the surface of the spraying disc. Coaxially and axisymmetrically to the case, a tube for supplying air to the diffuser is fixed to the inner surface of the union with a cylindrical bore by means of a perforated washer. At least three orifice tubes are installed at the end of the tube. Inside the atomizer casing, in part of the location of the conical chamber above the screw, an acoustic oscillator is placed in the form of a sound generator formed by a Helmholtz resonator. Resonator is made in the form of at least one spherical cavity located in the wall of the casing. Spherical cavity through the calibrated holes is connected with a conical chamber. Resonator is configured to control the generated frequency of acoustic oscillations due to the number and diameter of calibrated holes corresponding to a given frequency of acoustic oscillations.

EFFECT: technical result of the invention is an increase in the spraying efficiency of liquid.

1 cl, 1 dwg