FIELD: mechanical engineering; engine exhaust systems. SUBSTANCE: bellows are provided with inlet and outlet branch pipes and element for cleaning and thermal catalytic neutralization of exhaust gases arranged inside bellows. Cylindrical screen introduced additionally is installed coaxially inside, bellows with clearance and is connected with bellows inlet branch pipe. Outer surface of element is tightly mated with inner surface of cylindrical screen with possibility of displacement along longitudinal axis. EFFECT: increased service life and improved repairability of device. 5 cl, 2 dwg
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