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:
Dec. 09, 2025
Filed:
Jun. 21, 2024
Applicant:
Purem Gmbh, Neunkirchen, DE;
Inventor:
Peter Kast, Esslingen, DE;
Assignee:
Purem GmbH, Neunkirchen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01N 3/20 (2006.01); B01F 25/21 (2022.01); B01F 25/314 (2022.01); B01F 25/40 (2022.01); B01F 25/435 (2022.01); F01N 3/28 (2006.01); F01N 13/18 (2010.01);
U.S. Cl.
CPC ...
F01N 3/2066 (2013.01); F01N 13/1805 (2013.01); B01F 25/211 (2022.01); B01F 25/314231 (2022.01); B01F 25/40 (2022.01); B01F 25/435 (2022.01); F01N 3/206 (2013.01); F01N 3/208 (2013.01); F01N 3/2892 (2013.01); F01N 2240/20 (2013.01); F01N 2330/36 (2013.01); F01N 2330/38 (2013.01); F01N 2470/14 (2013.01); F01N 2470/16 (2013.01); F01N 2610/1453 (2013.01);
Abstract
An exhaust gas system for an internal combustion engine includes an exhaust gas treatment unit, an exhaust gas guide conducting exhaust gas to the exhaust gas treatment unit and a reactant discharge unit for the discharge of reactant into the exhaust gas guide. The exhaust gas guide includes an outer pipe and an inner pipe in a longitudinal region between the reactant discharge unit and the exhaust gas treatment unit. An external volume through which exhaust gas can flow and an internal volume through which exhaust gas can flow in the inner pipe are provided.