THERMOACOUSTIC RADIATOR Russian patent published in 2020 - IPC G10K11/00 

FIELD: acoustics.

SUBSTANCE: invention relates to acoustics, in particular to devices for excitation of acoustic oscillations in gases and liquids. According to the first embodiment, the thermoacoustic radiator comprises a layer of heat-generating structures in the form of a film of chaotically arranged structures of carbon nanotubes, on the surface of which there is a protective film of at least one material selected from the group: Al₂O₃, TiO₂, BN. At the same time at least two electric contacts are secured at the film chaotically arranged structures of the carbon nanotubes. According to the second embodiment, the thermoacoustic radiator comprises a layer of heat-generating structures in form of a film of chaotically arranged carbon nanotube structures and a blowing apparatus, at that, at the film chaotically arranged structures of the carbon nanotubes films at least two electric contacts are fixed, and the blowing device is configured to create a gas flow on the outer surface of the layer of heat-generating structures, wherein gas in the gas stream is selected from the group: helium, nitrogen, argon, xenon.

EFFECT: technical result of group of inventions is increase of acoustic power and service life of thermoacoustic radiator.

2 cl, 3 dwg