A heavy-duty gasoline engine three-way catalytic muffler structure

Abstract

The utility model discloses a kind of heavy gasoline engine three-way catalytic muffler structure, including three-way catalytic muffler body, intake flange, intake pipe, installation hanger, outlet pipe and outlet flange;The intake flange is connected with the intake end of three-way catalytic muffler body by intake pipe, the outlet flange is connected with the outlet end of three-way catalytic muffler body by outlet pipe, the installation hanger is fixed in intake pipe, three-way catalytic muffler body or / and outlet pipe outside;The three-way catalytic muffler body includes cylinder, TWC catalytic unit, gasket, oxygen sensor base and baffle ring;The TWC catalytic unit is encapsulated in cylinder by gasket, the baffle ring is arranged at the rear end of TWC catalytic unit and is fixedly connected with cylinder, the both sides of the cylinder are conical structure of spinning forming, and the oxygen sensor base is fixed on the outside wall of cylinder.The utility model is high in pollutant conversion efficiency, strong in reliability, suitable for heavy gasoline engine tail gas purification, and improves the competitiveness of whole vehicle.

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