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.

Date of Patent:
Jul. 01, 2025

Filed:

Oct. 15, 2021
Applicant:

Mercedes-benz Group Ag, Stuttgart, DE;

Inventors:

Nils Brinkert, Ludwigsburg, DE;

Hardy Weymann, Oberndorf, DE;

Marvin Schattner, Esslingen am Neckar, DE;

Markus Fenzl, Forchtenberg, DE;

Assignee:

Mercedes-Benz Group AG, Stuttgart, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01N 13/00 (2010.01); F01N 1/14 (2006.01); F01N 3/025 (2006.01); F01N 3/20 (2006.01); F01N 3/22 (2006.01); F01N 3/30 (2006.01);
U.S. Cl.
CPC ...
F01N 13/009 (2014.06); F01N 1/14 (2013.01); F01N 3/025 (2013.01); F01N 3/2033 (2013.01); F01N 3/22 (2013.01); F01N 3/30 (2013.01); F01N 2240/14 (2013.01); F01N 2340/06 (2013.01); F01N 2410/00 (2013.01); F01N 2550/14 (2013.01);
Abstract

An internal combustion engine. Exhaust gas is flowable through an exhaust tract. Secondary air is flowable through a secondary air conduit and is introducible into the exhaust tract via the secondary air conduit. A mixture having secondary air introduced into the exhaust tract and fuel components is ignitable in the exhaust tract by an ignition device. Fresh air flowing through a suction tract is introducible into a combustion chamber via the suction tract. The secondary air conduit is fluidically connected to the suction tract at a diversion point where a portion of the fresh air in the suction tract is divertable from the suction tract by the secondary air conduit and is introducible into the exhaust tract as the secondary air. The fuel components that are contained in the exhaust gas, originate from the combustion chamber and reach the exhaust tract uncombusted from the combustion chamber.


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