ACOUSTIC NOZZLE Russian patent published in 2018 - IPC B05B17/06 

FIELD: devices for spraying of liquids.

SUBSTANCE: invention relates to fluids and solutions spraying devices. Acoustic nozzle are made in form of acoustic sprayers and contain case with located inside generator of acoustic fluctuations in form of nozzle and resonator, pipes for air and liquid, the acoustic oscillation generator is made in the form of a conical nozzle coaxial with the body and having an annular throttle opening with an outside diameter d_c, formed by a cut of the nozzle and a resonator rod of diameter d_art. and an annular volume resonator of length h, formed by a resonator rod and a cylindrical hollow with an external diameter d_p in the fastening element, wherein the space cavity cavity is spaced apart from the nozzle cutoff at a distance b, and the air supply port is perpendicular to the axis of the housing and is connected to the annular hollow, formed by the roller and the inner surface of the housing, while the roller is secured with a cage with throttling holes coaxial with the ring throttle opening, and a resonator rod is coaxially fixed, and the sprayed liquid is supplied through a branch pipe perpendicular to the axis of the housing into an annular hollow formed by the casing and the outer surface of the nozzle, one end of the casing being made solid and connected to the casing, and at the other end, which surrounds the conical nozzle, are throttled openings coaxial with the ring throttle opening, while on the side opposite to the resonator there is an adjusting device in the form of a handwheel with an oil seal that is mounted on the free end of the roller, and the ratio of the length h of the annular hollow resonator to the distance b from the open surface of the hollow of the resonator up to the nozzle cut lies in the optimal range of values h/b = 0.7÷1.3; outer diameter ratio d_p annular cavity resonator to diameter d_st the external cylindrical surface of the resonator rod lies in the optimal range of values: d_p/d_st = 1.2÷1.9; ratio of diameter d_c of the circular throttle orifice of the nozzle to diameter d_st of the external cylinder surface of the resonator rod is within optimal range of values: d_c/d_st = 1.1÷1.7, an external diffuser is coaxially attached to the nozzle casing and an internal perforated diffuser is coaxially attached to the fastening element of the annular cavity resonator with the resonator bar so that the output sections of the external and internal diffusers lie in one plane perpendicular to the axis of the annular volume resonator.

EFFECT: technical result is increased efficiency of radiotherapy.

1 cl, 1 dwg