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. 29, 2022
Filed:
Jul. 13, 2020
Applicant:
Cummins Inc., Columbus, IN (US);
Inventors:
Bharath Sundar, Darlington, GB;
Apurva Arvind Chunodkar, Greenwood, IN (US);
Michael Haas, Columbus, IN (US);
Astha Kukreja, Boston, MA (US);
Assignee:
Cummins Inc., Columbus, IN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01N 3/00 (2006.01); F01N 3/20 (2006.01); F01N 11/00 (2006.01); F01N 3/10 (2006.01); F01N 13/00 (2010.01);
U.S. Cl.
CPC ...
F01N 3/208 (2013.01); F01N 3/106 (2013.01); F01N 11/00 (2013.01); F01N 13/009 (2014.06); F01N 11/002 (2013.01); F01N 2550/05 (2013.01); F01N 2550/14 (2013.01); F01N 2610/02 (2013.01); F01N 2610/144 (2013.01); F01N 2610/146 (2013.01); F01N 2900/1812 (2013.01); F01N 2900/1821 (2013.01); F01N 2900/1822 (2013.01); Y02T 10/12 (2013.01); Y02T 10/40 (2013.01);
Abstract
A system has a pump and an injector coupled to the pump. The system further comprises a controller coupled to the pump and the injector. The controller is structured to: determine a change of reductant flow relative to a change of pump rate of the pump; and generate a status command indicative of at least one of an under-restricted injector or an over-restricted injector in response to the determination of the change of reductant flow relative to the change of pump rate of the pump.