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:
Jul. 30, 2019
Filed:
Jan. 27, 2017
Applicant:
Robert Bosch Gmbh, Stuttgart, DE;
Inventor:
Frank Schweizer, Schwaikheim, DE;
Assignee:
Robert Bosch GmbH, Stuttgart, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01M 15/10 (2006.01); F01N 11/00 (2006.01); F01N 13/00 (2010.01); B01D 53/94 (2006.01); F01N 3/20 (2006.01); G01F 1/78 (2006.01); G01N 11/02 (2006.01); F01N 9/00 (2006.01);
U.S. Cl.
CPC ...
F01N 11/00 (2013.01); B01D 53/9418 (2013.01); B01D 53/9495 (2013.01); F01N 3/208 (2013.01); F01N 9/00 (2013.01); F01N 13/009 (2014.06); G01F 1/78 (2013.01); G01N 11/02 (2013.01); B01D 2251/2062 (2013.01); F01N 2550/05 (2013.01); F01N 2610/02 (2013.01); F01N 2900/0402 (2013.01); F01N 2900/1616 (2013.01); F01N 2900/1824 (2013.01); Y02T 10/47 (2013.01);
Abstract
A method for determining a mass flow of ammonia between two SCR catalytic converters disposed one after the other in an SCR catalytic converter system in an exhaust system, which comprises only one reduction agent dosing unit upstream of the first SCR catalytic converter, characterized in that the determination is carried out from the signal of a NOx sensor disposed between the two SCR catalytic converters and the signal of a NOx sensor disposed downstream of the second SCR catalytic converter.