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:
Mar. 19, 2024
Filed:
Dec. 16, 2021
Applicant:
Caterpillar Inc., Peoria, IL (US);
Inventors:
Assignee:
Caterpillar Inc., Peoria, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01N 3/20 (2006.01); F04B 49/06 (2006.01); F04B 51/00 (2006.01); G05B 23/02 (2006.01);
U.S. Cl.
CPC ...
F01N 3/2066 (2013.01); F01N 2550/05 (2013.01); F01N 2590/08 (2013.01); F01N 2610/1433 (2013.01); F01N 2900/1808 (2013.01); F01N 2900/1822 (2013.01); F04B 49/065 (2013.01); F04B 51/00 (2013.01); F04B 2205/05 (2013.01); G05B 23/0221 (2013.01);
Abstract
Operating an engine exhaust aftertreatment system includes receiving fluid pressure data of a reductant pump, determining a pump operating state, and comparing a pump health parameter to a prognostic pump failure criterion based upon the determining a pump operating state. Operating an engine exhaust aftertreatment system further includes outputting a pump health alert based upon a difference between the pump health parameter and the prognostic pump failure criterion. Related control logic is also disclosed.