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. 30, 2021
Filed:
Feb. 07, 2019
Applicant:
Ford Global Technologies, Llc, Dearborn, MI (US);
Inventors:
Robert Ukropec, Herzogenrath, DE;
Mario Balenovic, Waalre, NL;
Maria Armiento, Aachen, DE;
Jan Harmsen, Simpelveld, NL;
Assignee:
Ford Global Technologies, LLC, Dearborn, MI (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01N 3/08 (2006.01); F01N 3/20 (2006.01); F01N 11/00 (2006.01); B01D 53/94 (2006.01); F01N 3/22 (2006.01);
U.S. Cl.
CPC ...
F01N 3/225 (2013.01); B01D 53/9418 (2013.01); B01D 53/9422 (2013.01); B01D 53/9495 (2013.01); F01N 3/0814 (2013.01); F01N 3/0842 (2013.01); F01N 3/208 (2013.01); F01N 11/002 (2013.01); B01D 2257/404 (2013.01); F01N 2570/14 (2013.01); F01N 2900/1402 (2013.01); F01N 2900/1404 (2013.01);
Abstract
Methods and systems are provided for an exhaust aftertreatment system. In one example, a system comprises an air injector positioned to inject air between a first catalyst and a second catalyst in response to an oxygen concentration of an exhaust gas falling below a threshold concentration while exhaust gas temperatures are less than a threshold temperature.