ACOUSTIC ATOMISER Russian patent published in 2011 - IPC F23D11/34 

FIELD: machine building.

SUBSTANCE: acoustic atomiser consists of case with enclosed generator of acoustic oscillations in form of nozzle and resonator, and of branches for air and water supply. The generator of acoustic oscillations corresponds to a conic nozzle coaxial with the case and equipped with a throttle circular orifice of external diametre d_e formed with a shear of the nozzle and a resonator rod and circular volume resonator of h length formed with the resonator rod and a cylinder cavity of external diametre d_r in a fixing element. Also, the cavity of the volume resonator is spaced from the nozzle shear at a distance b. The air supply branch is set perpendicular to case axis and is coupled with the circular cavity formed with a bead and internal surface of the case. Additionally, on the bead there is secured a frame with throttle orifices coaxial to the circular throttle orifice and the coaxially fixed resonator rod. Via the branch perpendicular to case axis atomised fluid is supplied into the circular cavity formed with a jacket and external surface of the nozzle. Notably, one end of the jacket is solid and tied with the case, while another end, enveloping the conic nozzle, has throttle orifices coaxial to the circular throttle orifice. Further, from the side, opposite to the volume resonator there is furnished a control device in form of a flywheel with sealing. The control device is installed on a free end of the bead. Ratio between length h of the circular volume resonator and distance b from open surface of the cavity of the volume resonator to the nozzle shear is within the optimal range of values h/b=0.7÷1.3; ratio of internal diametre d_r of the circular volume resonator to diametre d_rod of internal cylinder surface of the resonator rod is within the optimal range of values d_r/d_rod=1.2÷1.9; ratio of diametre d_n of the circular throttle orifice of the nozzle to diametre d_rod of the external cylinder surface of the resonator rod is within oprimal range of values: d_n/d_rod= 1.1÷1.7.

EFFECT: raised efficiency of atomising.

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