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:
Jun. 16, 2020
Filed:
Jan. 30, 2018
Applicant:
International Engine Intellectual Property Company, Llc, Lisle, IL (US);
Inventors:
Navtej Singh, Arlington Heights, IL (US);
Paul Boon Charintranond, Chicago, IL (US);
Assignee:
International Engine Intellectual Property Company, LLC., Lisle, IL (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01M 15/10 (2006.01); F01N 11/00 (2006.01); F01N 3/20 (2006.01);
U.S. Cl.
CPC ...
G01M 15/104 (2013.01); F01N 3/208 (2013.01); F01N 3/2066 (2013.01); F01N 11/00 (2013.01); F01N 11/007 (2013.01); F01N 2550/05 (2013.01); F01N 2560/026 (2013.01); F01N 2560/14 (2013.01); F01N 2610/02 (2013.01); F01N 2610/146 (2013.01); F01N 2900/1616 (2013.01); F01N 2900/1622 (2013.01); F01N 2900/1818 (2013.01); Y02A 50/2325 (2018.01); Y02T 10/24 (2013.01); Y02T 10/47 (2013.01);
Abstract
A virtual diesel exhaust fluid (DEF) quality monitor repeatedly performs an intrusive test for disclosing use of adulterated DEF by injecting a controlled quantity of DEF into a diesel engine exhaust aftertreatment system upstream of an SCR catalyst while the engine operates and then processing certain data obtained from the test.