PRESSURE SWIRL NOZZLE TO SPRAY HARDENABLE COMPOSITION ON SURFACE (VERSIONS) AND METHOD OF PRODUCING POLYMER LAYER ON SURFACE THEREBY Russian patent published in 2011 - IPC B05B1/34 

FIELD: process engineering.

SUBSTANCE: invention is intended for spraying hardenable composition onto surface. Said pressure swirl nozzle comprises outlet section made up of funnel and outlet section. Nozzle incorporates also injector to close said funnel so that swirl chamber is formed between injector front side and aforesaid outlet. The injector has at least two swirl channels, each having inlet and outlet. The channels extend into swirl chamber to inject and swirl hardenable composition therein. Sum of least cross section areas of swirl channels exceeds swirl chamber lateral wall surface area that is sufficient for uniform distribution of hardenable composition.

EFFECT: higher efficiency of spraying, stable drop sizes and spraying cone.

26 cl, 9 dwg, 1 tbl, 1 ex