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:
Sep. 15, 2020
Filed:
Jan. 04, 2019
Applicant:
Ford Global Technologies, Llc, Dearborn, MI (US);
Inventors:
Frederik De Smet, Genk, BE;
Monika Angst, Aachen, DE;
Assignee:
Ford Global Technologies, LLC, Dearborn, MI (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F01N 9/00 (2006.01); F01N 3/20 (2006.01); F01N 3/08 (2006.01); F02M 26/00 (2016.01);
U.S. Cl.
CPC ...
F01N 3/208 (2013.01); F01N 3/0814 (2013.01); F01N 3/0842 (2013.01); F01N 3/2066 (2013.01); F01N 9/00 (2013.01); F02M 26/00 (2016.02); F01N 2430/00 (2013.01); F01N 2560/026 (2013.01); F01N 2570/14 (2013.01); F01N 2610/02 (2013.01); F01N 2900/1402 (2013.01);
Abstract
Methods and systems are provided for HP-EGR and LP-EGR. In one example, a method includes selecting a HP-EGR mode or a LP-EGR mode in response to a first difference calculated between ammonia desired during the two modes, and a second difference calculated between NOemitted during the two modes.