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.

Date of Patent:
Jan. 28, 2025

Filed:

Jul. 26, 2022
Applicant:

Cummins Inc., Columbus, IN (US);

Inventors:

Rebekah Lippis McIntier, Columbus, IN (US);

Abram L. McCalment, Greenwood, IN (US);

Chetan V. Shirsath, Columbus, IN (US);

Anuj Maheshwari, Columbus, IN (US);

Mihir Agshikar, Columbus, IN (US);

Daniel E. Boewe, Columbus, IN (US);

Michael P. Blanz, Columbus, IN (US);

Daniel Christopher Villiger, Columbus, IN (US);

Assignee:

Cummins Inc., Columbus, IN (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02D 41/00 (2006.01); F02D 41/02 (2006.01); F02D 41/16 (2006.01); F02D 41/38 (2006.01);
U.S. Cl.
CPC ...
F02D 41/029 (2013.01); F02D 41/0087 (2013.01); F02D 41/16 (2013.01); F02D 41/38 (2013.01); F02D 2200/101 (2013.01);
Abstract

A method includes operating an engine system including a plurality of cylinders, a plurality of fuel injectors configured to provide fuel the plurality of cylinders, a compression braking system configured to selectably brake at least a first set of the plurality of cylinders, and an exhaust aftertreatment system including at least one catalyst. The method includes determining a condition for brake-fuel operation and, in response to the act of determining, operating the engine in a brake-fuel mode wherein the compression brake is actuated to provide compression braking of the first set of the plurality of cylinders and a second set of the plurality of cylinders receives and combust fuel provided from respective ones of the plurality of fuel injectors.


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