FIELD: internal combustion engines primarily for motor cars. SUBSTANCE: exhaust system has gas intake line with gas-dynamic gas pulse and noise damper at its inlet connected to exhaust channel provided with at least one exhaust silencer; damper has hollow barrel with end plates whose volume equals at least four displacement volumes of engine; entrance and/or exit dynamic sections of gas-intake line pipes and those of outlet channel pipe are located inside barrel in vicinity of node surfaces of lower natural modes of gas volume inside damper. At least one gas- pulsation crosswise dissipater made in the form of perforated barrier may be placed in certain manner inside damper barrel. EFFECT: improved efficiency of noise suppression. 11 cl, 11 dwg
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