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:
Nov. 05, 2019

Filed:

Jul. 31, 2014
Applicant:

Cummins Inc., Columbus, IN (US);

Inventors:

Norman C. Blizard, Columbus, IN (US);

Timothy P. Lutz, Columbus, IN (US);

David B. Snyder, Franklin, IN (US);

Assignee:

Cummins Inc., Columbus, IN (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02M 43/04 (2006.01); F02D 19/06 (2006.01); F02D 19/08 (2006.01); F02M 43/00 (2006.01); F02D 19/10 (2006.01); F02D 41/00 (2006.01);
U.S. Cl.
CPC ...
F02M 43/04 (2013.01); F02D 19/061 (2013.01); F02D 19/0623 (2013.01); F02D 19/0642 (2013.01); F02D 19/0647 (2013.01); F02D 19/0694 (2013.01); F02D 19/081 (2013.01); F02D 19/105 (2013.01); F02D 41/0025 (2013.01); F02D 41/0027 (2013.01); F02M 43/00 (2013.01); F02D 19/0644 (2013.01); Y02T 10/36 (2013.01);
Abstract

A method of reducing carbonaceous deposits on a fuel injector is provided in which a first fuel composition is supplied to the fuel injector in a dual fuel engine, the first fuel composition comprising natural gas fuel and a first percentage of diesel fuel; and a second fuel composition is supplied to the fuel injector in a dual fuel engine, the second fuel composition comprising a second percentage of diesel fuel that is greater than the first percentage of diesel fuel to cause cavitation to occur within the fuel injector, thereby reducing carbonaceous deposits.


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