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:
Mar. 03, 2020
Filed:
Aug. 26, 2016
Applicant:
Audi Ag, Ingolstadt, DE;
Inventors:
Marcus Schiele, Etting, DE;
Siegfried Meixner, Hofstetten, DE;
Mark Banzer, Eichstätt, DE;
Gerold Berthold, Gaimersheim, DE;
Assignee:
AUDI AG, Ingolstadt, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01N 3/05 (2006.01); F01N 3/32 (2006.01); F01N 13/10 (2010.01); F01N 3/34 (2006.01); F02B 75/18 (2006.01);
U.S. Cl.
CPC ...
F01N 3/05 (2013.01); F01N 3/32 (2013.01); F01N 3/34 (2013.01); F01N 13/10 (2013.01); F01N 13/107 (2013.01); F02B 75/18 (2013.01); F01N 2470/30 (2013.01); F01N 2610/085 (2013.01); Y02A 50/2322 (2018.01); Y02T 10/20 (2013.01);
Abstract
A drive device for a motor vehicle includes an exhaust pipe and a secondary air device having a first secondary air path which feeds into the exhaust gas pipe. Disposed in the first secondary air path is a secondary air pump and a secondary air valve. To compensate, for example, fluctuations in the supply voltage of the secondary air pump, provision is made for arrangement in the secondary air path of a Laval nozzle which can be placed downstream of the secondary air valve.