Exhaust gas aftertreatment device
AssigneeVitesco Technologies GmbH
InventorsPeter Hirth, Katrin Konieczny, Thomas Nagel, Holger Stock
Life of this patent
Estimating the term…
Abstract
A device for the aftertreatment of exhaust gases of an internal combustion engine, having at least one catalytic converter, through which exhaust gas can flow, and at least one muffler formed by a closed volume and through which exhaust gas can flow along an inflow section to an outflow section. The catalytic converter is formed by a honeycomb body that has a plurality of flow channels through which exhaust gas can flow. The honeycomb body is accommodated in a casing tube, which surrounds the honeycomb body, and is connected to the casing tube in a materially bonded manner. The catalytic converter is arranged in the interior of the muffler.
Claims11
A device for aftertreatment of exhaust gases of an internal combustion engine, comprising:
- at least one muffler formed by a closed volume and through which the exhaust gases can flow along an inflow section to an outflow section;
- and
- at least one catalytic converter arranged in an interior of the at least one muffler and through which the exhaust gases can flow, the at least one catalytic converter comprising:
- a casing tube;
- and
- a honeycomb body accommodated in the casing tube that surrounds the honeycomb body, and which has a plurality of flow channels through which the exhaust gases can flow;
- wherein the honeycomb body is connected to the casing tube in a materially bonded manner,
- wherein walls that form the plurality of flow channels formed in the honeycomb body have openings which allow a bidirectional transfer flow between the plurality of flow channels of the honeycomb body in a radial direction of the honeycomb body, and
- wherein the casing tube accommodating the honeycomb body has openings which allow a bidirectional transfer flow from the honeycomb body toward a volume enclosed by the at least one muffler.
Dependencies are inferred from the claim text.