SWIRLING SPRAY Russian patent published in 2018 - IPC A62C31/02 

FIELD: devices for spraying of liquids.

SUBSTANCE: invention relates to spraying of fluids equipment and can be used in fire fighting, agriculture, chemical industry and heat power engineering. This is achieved by the fact that, in a vortex nozzle comprising a hollow housing with a nozzle and a central core, the housing is made with a fluid supply channel and comprises a coaxial, rigidly connected to the housing bushing with a nozzle fixed in its lower part and made in the form of a cylindrical two-stage bushing, which upper cylindrical stage is by means of threaded connection connected to the central cylindrical core, having through internal central hole, and installed with annular clearance relative to cylindrical bushing inner surface, and the annular gap is connected, at least, to at least three radial channels formed in a two-stage bushing connecting it to an annular cavity formed by the bushing inner surface and the upper cylindrical stage outer surface, wherein the annular cavity is connected to the housing liquid supply channel, wherein in central cylindrical core lower part hollow cone swirler is attached, which cone shell is fixed by means of at least three spokes by one end fixed on swirler conical shell in its upper part, and with the other end in a circumferential groove formed on the inner surface of the central cylindrical core, while a helical thread is made on the outer surface of the hollow conical swirler.

EFFECT: technical result is increase of fine spraying efficiency.

4 cl, 1 dwg