Method and device for exhaust gas aftertreatment in an internal combustion engine

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11668217
APP PUB NO 20220282655A1
SERIAL NO

17825445

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Abstract

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A device for exhaust gas aftertreatment in an internal combustion engine can be connected to an outlet of the internal combustion engine. The device comprises an exhaust gas system with an exhaust gas channel in which a three-way catalytic converter is arranged, and an exhaust gas burner with which hot burner exhaust gases can be fed into the exhaust gas channel at a feed point upstream from the three-way catalytic converter. The three-way catalytic converter is configured as a lambda probe catalytic converter and comprises a first catalyst volume and a second catalyst volume, whereby a lambda probe is arranged downstream from the first catalyst volume and upstream from the second catalyst volume, whereby the first catalyst volume has a lower oxygen storage capacity than the second catalyst volume. A method for exhaust gas aftertreatment in an internal combustion engine has such an exhaust gas aftertreatment device.

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Patent Owner(s)

Patent OwnerAddress
DR ING H C F PORSCHE AKTIENGESELLSCHAFT70435 STUTTGART

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Baron, Von Ceumern-Lindenstjerna Falk-Christian Braunschweig, DE 21 61
Hemminger, Sebastian Oberriexingen, DE 5 8
Kaack, Michael Roetgesbuettel, DE 17 56
Paukner, Stefan Wolfsburg, DE 25 90

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