NOZZLE OF KOCHETOV Russian patent published in 2013 - IPC A62C31/00 

FIELD: fire-fighting facilities.

SUBSTANCE: invention relates to an equipment of spraying liquid and can be used in fire-fighting facilities, in agriculture, chemical technology units and heat-power engineering. The nozzle is claimed comprising a hollow housing with the nipple and the central core. The housing is made with a channel for supplying liquid and has a coaxial, rigidly connected with the housing sleeve with the nipple secured to its lower part. The nipple is made in the form of a two-stage cylindrical sleeve, which upper cylindrical stage is connected by a threaded connection with the central core, mounted with an annular gap relative to the inner surface of the cylindrical sleeve and consisting of a cylindrical part with baffle fixed, coaxially with it, in the lower part by a pin, pressed into the nipple and rigidly connected with a conical baffle having throttle holes which axes are perpendicular to the conical surface. The annular gap is connected to at least three radial channels formed in the two-step sleeve that connect it to the annular cavity formed by the inner surface of the sleeve and the outer surface of the upper cylindrical stage, and the annular cavity is connected with the housing channel for supplying fluid. At that on the side surface of the cylindrical part of the central core, in its lower part connected to a conical baffle, there are at least two rows of cylindrical throttle orifices, with the axes which lie in planes perpendicular to the core axis, and in each row there are at least three openings, at that the axes of the throttle orifices of one row are displaced relative to the axes of throttle orifices in the other row by angle lying in the range of 15°-60°.

EFFECT: increased efficiency of fine atomisation of liquid.

1 cl, 1 dwg