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:
Jul. 20, 2021
Filed:
Mar. 18, 2020
Applicant:
Cummins Inc., Columbus, IN (US);
Inventors:
Jennifer Kay Light-Holets, Columbus, IN (US);
Govindarajan Kothandaraman, Columbus, IN (US);
J. Steven Kolhouse, Columbus, IN (US);
Vivek Anand Sujan, Columbus, IN (US);
Assignee:
Cummins Inc., Columbus, IN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02D 13/06 (2006.01); F02D 41/02 (2006.01); F02D 41/00 (2006.01);
U.S. Cl.
CPC ...
F02D 41/0087 (2013.01); F02D 13/06 (2013.01); F02D 41/0235 (2013.01); F02D 2200/0802 (2013.01); F02D 2200/501 (2013.01); F02D 2200/701 (2013.01); F02D 2200/702 (2013.01);
Abstract
Systems, apparatus, and methods are disclosed that include a divided exhaust engine with at least one primary exhaust gas recirculation (EGR) cylinder and a plurality of non-primary EGR cylinders. The systems, apparatus and methods control the EGR fraction by deactivation of one or more of the cylinders.