FIELD: machine building.
SUBSTANCE: invention can be used in exhaust systems of exhaust gases of internal combustion engines. Exhaust gas treatment method consists in controlling actuator of reducing agent injector (270) to control pressure of reducing agent injector (270) located upstream of first selective catalytic reduction device (210) in outlet channel (202). Pressure of injector (270) of reducing agent changes distribution of reducing agent in outlet channel (202), depending on measured temperature of selective catalytic reduction. Second device (220) of selective catalytic reduction is located downstream of first device (210) of selective catalytic reduction. First device (210) of selective catalytic reduction contains at least one flow area through which the reducing agent easily passes without a thin coating of selective catalytic reduction. Invention discloses version of exhaust gas processing method and exhaust gas exhaust system.
EFFECT: reducing or preventing deposition of reducing agent by flow of exhaust gases carrying reducing agent.
18 cl, 11 dwg
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