FIELD: machine building.
SUBSTANCE: invention can be used in systems for cleaning exhaust gases of internal combustion engines. System for urea mixer (200) comprises urea nozzle (206) installed with possibility of urea injection inside longitudinal tube (212). Lengthwise tube (212) is fluidly connected to perforated toroidal tube (210) of fixed radius arranged in engine exhaust gas flow (298). Perforated tube (210) and longitudinal tube (212) are configured to receive exhaust gases by means of inlet holes (214) located on the upper face facing the direction of incoming flow (298) of exhaust gases in outlet channel (204). There is a common internal channel branched from longitudinal tube (212) to perforated tube (210). Versions of the urea mixer are described.
EFFECT: possibility of mixing urea with exhaust gas in a perforated tube before entering an outlet channel.
20 cl, 5 dwg
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