The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 06, 2023
Filed:
May. 26, 2022
Volkswagen Aktiengesellschaft, Wolfsburg, DE;
Dr. Ing. H.c. F. Porsche Aktiengesellschaft, Stuttgart, DE;
Falk-Christian Baron Von Ceumern-Lindenstjerna, Braunschweig, DE;
Stefan Paukner, Wolfsburg, DE;
Michael Kaack, Roetgesbuettel, DE;
Sebastian Hemminger, Oberriexingen, DE;
VOLKSWAGEN AKITENGESELLSCHAFT, Wolfsburg, DE;
Dr. Ing. h.c. F. Porsche Aktiengesellschaft, Stuttgart, DE;
Abstract
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.