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:
May. 25, 2021
Filed:
Apr. 18, 2019
Applicant:
Caterpillar Inc., Deerfield, IL (US);
Inventors:
Joshua Lynn Ratts, East Peoria, IL (US);
Wilce Damion Williams, San Antonio, TX (US);
Assignee:
Caterpillar Inc., Peoria, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01N 3/08 (2006.01); F01N 3/20 (2006.01); F01N 3/10 (2006.01); F01N 13/00 (2010.01); F01N 3/035 (2006.01);
U.S. Cl.
CPC ...
F01N 3/0885 (2013.01); F01N 3/2066 (2013.01); F01N 3/035 (2013.01); F01N 3/103 (2013.01); F01N 3/106 (2013.01); F01N 3/2033 (2013.01); F01N 13/0093 (2014.06); F01N 2260/04 (2013.01);
Abstract
A compression ignition internal combustion engine system includes an engine and an exhaust system with an upstream exhaust conduit, and an oxidation catalyst device (DOC). Systems and methods of desulfating the oxidation catalyst by the injection of a lightoff fluid to promote ignition of uncombusted fuel in the exhaust stream are disclosed.