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. 11, 2023
Filed:
Jun. 16, 2021
Applicant:
Caterpillar Inc., Peoria, IL (US);
Inventors:
Xinyu Ge, Peoria, IL (US);
Brian P. Brennan, Steger, IL (US);
James H. Mutti, Jr., Germantown Hills, IL (US);
Assignee:
Caterpillar Inc., Peoria, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02M 26/50 (2016.01); F02M 26/23 (2016.01); F02M 26/33 (2016.01); F02M 26/49 (2016.01); F02M 26/53 (2016.01); F02D 41/00 (2006.01); F02D 41/14 (2006.01);
U.S. Cl.
CPC ...
F02M 26/50 (2016.02); F02D 41/0002 (2013.01); F02D 41/0055 (2013.01); F02D 41/0077 (2013.01); F02D 41/1446 (2013.01); F02M 26/23 (2016.02); F02M 26/33 (2016.02); F02M 26/49 (2016.02); F02M 26/53 (2016.02); F02D 2041/0017 (2013.01); F02D 2200/021 (2013.01);
Abstract
A method for cleaning an exhaust gas recirculation (EGR) valve includes scheduling a cleaning for the EGR valve, and receiving a signal indicative of a temperature of exhaust gas produced with an internal combustion engine. The method may also include generating a command to actuate an intake throttle valve to a restrictive position to increase the temperature of the exhaust gas for cleaning the EGR valve, and generating a signal to repeatedly actuate the EGR valve.