FIELD: heating.
SUBSTANCE: invention relates to SCR system for exhaust gases cleaning. The cooling method of the dosing unit (250) of the reducing agent after flow termination of the exhaust gases is performed by the reducing agent supplied in it. Method also contains work stage of the supply unit to feed the specified cooling reducing agent with power decreased in comparison with operation under standard mode. Invention also relates to software with program code (P) for computer (200; 210) to implement the method according to the invention. Besides, the invention relates to SCR system and mechanical transportation vehicle equipped with SCR system.
EFFECT: more effective cooling of the dosing unit of SCR system after flow termination of the exhaust gases in SCR system.
17 cl, 5 dwg
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