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:
Oct. 04, 2022

Filed:

Sep. 22, 2021
Applicant:

Caterpillar Inc., Peoria, IL (US);

Inventors:

Michael Marchionda, Washington, IL (US);

Dereck G. Heffron, Peoria, IL (US);

Assignee:

Caterpillar Inc., Peoria, IL (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02D 41/22 (2006.01); F02D 41/14 (2006.01); F02D 41/26 (2006.01);
U.S. Cl.
CPC ...
F02D 41/221 (2013.01); F02D 41/1446 (2013.01); F02D 41/26 (2013.01); F02D 2041/224 (2013.01); F02D 2041/228 (2013.01); F02D 2200/021 (2013.01); F02D 2200/101 (2013.01);
Abstract

A monitoring system obtains sensor data associated with operation of an engine, of a machine, that includes a first engine bank with a first set of fuel injectors and a second engine bank with a second set of fuel injectors. The monitoring system determines, based on the sensor data, a first temperature value that is representative of temperature differences between the first engine bank and the second engine bank for a period of time when the engine operated in a particular operation state, and a second temperature value that is representative of temperature differences between the first engine bank and the second engine bank for one or more prior periods of time when the engine operated in the particular operation state. The monitoring system determines, based on the first temperature value and the second temperature value, that a fuel injector malfunction condition occurred during the period of time.


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