PNEUMATIC SPRAYER Russian patent published in 2013 - IPC A62C31/00 

FIELD: process engineering.

SUBSTANCE: invention relates to spraying of fluids and may be used in firefighting equipment. Pneumatic sprayer comprises casing, training device, and nozzle. Vase is shaped to reversed cup with bottom provided with threaded hole to secure central cylindrical sleeve. Said sleeve has central axial bore of training device to feed fluid to be sprayed. Casing lateral surface has hole to feed air (gas) at pressure communicated with annular chamber. Said chamber is formed by cylindrical sleeve outer surface and casing inner surface. Cylindrical cartridge of training device feeding gas at pressure to sprayer via annular clearance is secured to casing lower part inner side surface. Said clearance is formed by cylindrical sleeve outer surface and casing inner surface. Nozzle shaped to conical funnel is secured coaxially to central cylindrical sleeve. End round plate with tapered orifices is rigidly secured perpendicular to funnel axis, at funnel lower part. Rows of cylindrical throttling orifices are made at funnel lateral surface, their axes being located in planes perpendicular to funnel axis.

EFFECT: higher efficiency of spraying.

1 dwg