FIELD: internal combustion engines.
SUBSTANCE: invention relates to engine construction, in particular to turbocharged engines. System for a turbocharged engine contains exhaust channel (145), restrictor valve (169), channel (157) for exhaust gas recirculation of the pre-catalytic converter. Restrictor valve (169) is located upstream of catalytic converter (170) of exhaust gases and downstream of turbine (154) and overflow valve (155) in exhaust channel (145) opposite oxygen content sensor (126). Exhaust catalytic converter recirculation channel (157) is connected to exhaust channel (145) via restrictor valve (169) to allow engine exhaust (100) to flow into intake channel (142) upstream of compressor inlet (152) during cold start. System and method for a turbocharged engine is disclosed.
EFFECT: technical result is to reduce harmful emissions from exhaust gases during cold start using recirculation of exhaust gases.
20 cl, 10 dwg
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