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:
Feb. 15, 2005
Filed:
Aug. 28, 2001
Applicants:
Michael Zillmer, Sickte, DE;
Ekkehard Pott, Gifhorn, DE;
Karsten Michels, Braunschweig, DE;
Inventors:
Assignee:
Volkswagen AG, Wolfsburg, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01N003/00 ;
U.S. Cl.
CPC ...
Abstract
An exhaust gas system of an internal combustion engine, including a catalyst, and a cooling section provided upstream of the catalyst. The cooling section includes an additional cooling arrangement provided so that in all operating phases of the internal combustion engine with their different exhaust gas mass flow rates, the amount of thermal energy dissipated from the exhaust gas relative to a total amount of thermal energy present in the exhaust gas (relative heat dissipation) is increased in such a way that a maximum temperature reduction is obtained at intermediate values of the exhaust gas mass flow rate.