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:
Aug. 08, 2017
Filed:
Mar. 17, 2014
Applicant:
Cummins Inc., Columbus, IN (US);
Inventors:
Michael J. Ruth, Franklin, IN (US);
Michael J. Cunningham, Greenwood, IN (US);
Cary A. Henry, Helotes, TX (US);
Assignee:
Cummins Inc., Columbus, IN (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02D 41/00 (2006.01); F02D 41/14 (2006.01); F02M 26/05 (2016.01); F02M 26/06 (2016.01); F02M 26/24 (2016.01); F02M 26/42 (2016.01); F02M 26/28 (2016.01);
U.S. Cl.
CPC ...
F02D 41/005 (2013.01); F02D 41/0052 (2013.01); F02D 41/0065 (2013.01); F02D 41/144 (2013.01); F02D 41/146 (2013.01); F02D 41/1454 (2013.01); F02M 26/05 (2016.02); F02M 26/06 (2016.02); F02M 26/24 (2016.02); F02M 26/42 (2016.02); F02D 41/0007 (2013.01); F02M 26/28 (2016.02); Y02T 10/47 (2013.01);
Abstract
Active control of one or more exhaust gas recirculation loops is provided to manage and EGR fraction in the charge flow to produce desired operating conditions and/or provide diagnostics in response to at least one of an oxygen concentration and a NOx concentration in the charge flow and in the exhaust flow.