FOAMGENERATOR OF EJECTION TYPE Russian patent published in 2012 - IPC A62C31/12 

FIELD: fire-fighting means.

SUBSTANCE: invention is intended for use in automatic fire suppression systems. Foamgenerator of ejection type comprises a body, a distributing and guiding device. The housing consists of inlet pipe with a hole at one end and a plug on the other. The flange is attached perpendicular to the pipeline from the side of the hole, to which by at least three spokes a cylindrical shell is attached, connected by at least three spokes with a perforated disk, rigidly connected to the plug. On the pipeline at least three holes are placed perpendicular to the axis, and connected with it additional pipelines, each of which consists of two parts. Lengths of additional pipelines are increasing from the free end of the pipeline input to the end with a plug, and the axes of the additional pipelines are rotated relative to each other at an angle of 120°. On each of them, in order of length increasing from the peripheral plugged part of the pipeline to the axis of the main hole the offsets of varying length with the injectors at the ends are fixed, in front of which the perforated discs are located, fixed to the inlet pipe. The diameters of disks increase from the previous to the subsequent with additional pipelines. The nozzles are made from the shell, inside which there are two axisymmetric throttling holes: cylindrical and conical.

EFFECT: increased efficiency of spraying fire-extinguishing liquid foaming agent solution (high-expansion polydisperse foam).

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