ULTRASONIC OSCILLATING SYSTEM FOR GASEOUS MEDIA Russian patent published in 2024 - IPC B06B1/06 

FIELD: acoustics.

SUBSTANCE: ultrasonic oscillating system for gaseous media consists of series-arranged and acoustically connected to each other longitudinally oscillating piezoelectric transducer and an ultrasonic oscillation emitter into a gas medium in the form of a disc made of metal, the geometric dimensions of which are selected from the condition for the formation of bending vibrations at operating frequency corresponding to natural resonance frequency of piezoelectric transducer and multiple of fundamental frequency of disk radiator, on the side of the disc radiator surface, opposite to the connection with the piezoelectric transducer, at a distance of less than a quarter of the wavelength of ultrasonic oscillations in a gas medium at the fundamental frequency of the ultrasound oscillations formed by the piezoelectric transducer, horns are placed, made in the form of annular diverging truncated cones, with an opening angle of 90 degrees, on the side of the disc radiator connection with the piezoelectric transducer, an ultrasonic oscillation reflector is placed, made in the form of two concentrically located truncated cones with an opening angle of 90 degrees, cones are connected to each other and attached to the piezoelectric transducer housing at the connection point.

EFFECT: creation of ultrasonic vibrations of high intensity in gaseous media.

1 cl, 3 dwg