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:
Apr. 12, 2022
Filed:
Jul. 01, 2020
Applicant:
Ford Global Technologies, Llc, Dearborn, MI (US);
Inventors:
Michael James Uhrich, Wixom, MI (US);
Giovanni Cavataio, Dearborn, MI (US);
William Charles Ruona, Farmington Hills, MI (US);
Joseph Lyle Thomas, Farmington Hills, MI (US);
Ross Dykstra Pursifull, Dearborn, MI (US);
Assignee:
Ford Global Technologies, LLC, Dearborn, MI (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F02D 41/02 (2006.01); F01N 3/20 (2006.01); F01N 3/10 (2006.01); F01N 11/00 (2006.01); F02D 41/04 (2006.01); F02D 41/14 (2006.01); F02D 41/06 (2006.01);
U.S. Cl.
CPC ...
F02D 41/0275 (2013.01); F01N 3/101 (2013.01); F01N 3/208 (2013.01); F01N 11/007 (2013.01); F02D 41/042 (2013.01); F02D 41/065 (2013.01); F02D 41/1439 (2013.01); F02D 41/1454 (2013.01); F01N 2560/06 (2013.01); F01N 2610/02 (2013.01); F02D 2200/0802 (2013.01);
Abstract
Methods and systems are provided for an aftertreatment system. In one example, a system comprising a spark-ignited engine comprising a selective catalytic reduction device (SCR) arranged in an exhaust passage downstream of a catalyst, and an injector positioned to inject a reductant directly into the exhaust passage downstream of the catalyst subsequent an engine shut-off event.