ACOUSTIC ATOMIZER Russian patent published in 2018 - IPC F23D11/34 

FIELD: energy.

SUBSTANCE: invention relates to the field of energy and can be used for high-quality spraying of liquid fuel. Acoustic nozzle for spraying liquid fuel contains a cylindrical hollow body with a gas supply channel and a supersonic nozzle located in the end part of the body and imparted by its tapering part to the body cavity, a rod with an axial fuel channel concentrically mounted in the body cavity with the possibility of axial movement relative to the housing and having radial fuel supply channels, and a volume acoustic resonator fixed to the end of the rod located at the exit of the supersonic nozzle and having an annular internal cavity open towards the exit of the supersonic nozzle. Part of the annular inner cavity of the acoustic cavity, facing the exit of the supersonic nozzle, is made confusor, in the end wall of the resonator, a calibrated hole is made for communicating its internal cavity with the external environment, the rod is equipped with a pneumatic servo-motor whose pneumatic cylinder is fixedly fixed in the body cavity concentrically to the stem, and the piston located in the pneumatic cylinder, rigidly fixed to the rod and spring-loaded on the side of the supersonic nozzle, the control cavity of the pneumatic cylinder communicating with the cavity of the nozzle body, and the opposite cavity of the pneumatic cylinder is sealed against the body cavity and is communicated with the drainage channel.

EFFECT: invention makes it possible to increase the amplitude of pressure fluctuations at partial operating conditions of the acoustic nozzle and ensures the high-quality spraying of liquid fuel in all modes of operation of the acoustic nozzle.

4 cl, 3 dwg