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:
Apr. 05, 2022
Filed:
Nov. 20, 2020
Applicant:
Caterpillar Inc., Peoria, IL (US);
Inventors:
Daniel R. Puckett, Peoria, IL (US);
Andrew O. Marrack, Peoria, IL (US);
Michael E. Sattler, Eureka, IL (US);
Mitchell B. Juchems, Tremont, IL (US);
Assignee:
Caterpillar Inc., Peoria, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02D 41/30 (2006.01); F02D 41/22 (2006.01); F02D 41/20 (2006.01);
U.S. Cl.
CPC ...
F02D 41/30 (2013.01); F02D 41/20 (2013.01); F02D 41/22 (2013.01); F02D 2041/2055 (2013.01); F02D 2041/2058 (2013.01); F02D 2041/224 (2013.01); F02D 2200/101 (2013.01);
Abstract
A method for controlling a fuel injector of an engine system includes applying a pull-in current to close a spill valve of the fuel injector and detecting a timing at which the spill valve closes. The method also includes adjusting at least one of an amplitude of the pull-in current, a duration of the pull-in current, or a timing of a start of an application of the pull-in current based on the detected timing of the closing of the spill valve.