SWIRL INJECTOR BY KOCHETOV Russian patent published in 2015 - IPC B05B1/34 F23D11/04 

FIELD: machine building.

SUBSTANCE: swirl injector comprises a casing with an auger pressed therein and a fluid feed union, the casing consists of two coaxial and coupled cylindrical sleeves: larger-diameter and smaller-diameter sleeves. The auger is rigidly fixed with the inner surface of the smaller diameter sleeve and is set inside the said sleeve coaxially to it; the outer auger surface represents a screw groove and, at least, two rows of through bores arranged concentrically along the circumferences are made inside the auger. Note that every said row has, at least, three bores while bore diameters decrease from the auger axis to peripheral bores. Larger-diameter sleeve comprises a union rigidly and coaxially fixed therein. The said union has a coaxial cylindrical bore changing into axially symmetric diffuser communicated with a cylindrical chamber formed by the inner surface of the smaller-diameter sleeve and the end face surface of the auger. A pin is fixed in the auger coaxially and axisymmetrically to it, one pin end is located aflush with the pin end face surface turned to the union and the other free pin end is fitted by at least two disks set perpendicular to its axis and evenly distributed along the pin length, the disk diameters increase to the free pin end and the latter is fitted by a perforated sprayer made as a spherical segment with its concave part being turned to the disk which is the last along the pin length.

EFFECT: higher efficiency of spraying.

3 cl, 1 dwg