PNEUMATIC NOZZLE Russian patent published in 2018 - IPC B05B7/00 A62C31/02 

FIELD: manufacturing technology.

SUBSTANCE: invention relates to the technology of generating gas-droplet jets of increased range and can be used in fire fighting equipment, in agriculture to irrigate land and other industries, requiring the need to create long-range gas-liquid jets. Pneumatic injector contains a fluid and gas supply system and a nozzle. Liquid supply system supplies liquid in two directions, including an axial supply of liquid through the supply pipe and a confuser and a cylindrical nozzle that are successively connected and coaxial with it. Tangential fluid supply is carried out through the coaxial body in the form of a cylindrical cone shell, on the cylindrical part of which a vortex annular chamber with a branch pipe for supplying liquid is fixed. On the edges of the annular chamber two rows of liquid supplying tangential channels are made. In each row there are at least three tangential channels, connecting the annular chamber with the cylindrical cavity of the body, to which a circular plate is coaxially attached, being located perpendicular to the axis of the vortex annular chamber and rigidly connected to the cylindrical cavity of the housing at its end section. Slit nozzle is attached perpendicularly to the circular plate; the nozzle is made of two mutually perpendicular rectangular parallelepipeds with through throttling holes of rectangular cross section, connected to the body cavity. Two-phase flow divider is attached coaxially to the peripheral part of the circular plate; the former is made in the form of a perforated surface of a truncated cone, covering the slit nozzle with through throttling holes of rectangular cross section, connected to the cavity of the body.

EFFECT: technical result of the invention is to increase the efficiency of the formation of a gas-droplet jet and to expand its delivery zone.

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