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:
May. 21, 2019
Filed:
May. 22, 2018
Applicant:
Audi Ag, Ingolstadt, DE;
Inventors:
Michael Görgen, Kall, DE;
Markus Sonner, Kipfenberg, DE;
Assignee:
Audi AG, Ingolstadt, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01N 3/30 (2006.01); F02D 41/00 (2006.01); F01N 3/32 (2006.01); F02D 41/02 (2006.01); F02B 39/10 (2006.01);
U.S. Cl.
CPC ...
F01N 3/306 (2013.01); F01N 3/323 (2013.01); F01N 3/326 (2013.01); F02B 39/10 (2013.01); F02D 41/0087 (2013.01); F02D 41/0255 (2013.01); F01N 2240/14 (2013.01); F01N 2430/02 (2013.01); F02D 41/0007 (2013.01); Y02T 10/26 (2013.01);
Abstract
A method for operating a drive device includes heating a hot air stream with a heating device integrated in a cylinder head of an internal combustion engine of the drive device, wherein the internal combustion engine is connected with an exhaust gas system; mixing the hot air stream upstream of a catalytic converter with a cold fresh air stream for adjusting a defined temperature of the hot air stream; and supplying the hot air stream having the adjusted defined temperature to the catalytic converter in at least one operating state of the internal combustion engine so as to heat the catalytic converter.