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. 09, 2021
Filed:
Jan. 13, 2020
Applicant:
Caterpillar Inc., Peoria, IL (US);
Inventors:
Daniel R. Puckett, Peoria, IL (US);
Andrew O. Marrack, Peoria, IL (US);
Assignee:
Caterpillar Inc., Peoria, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02M 47/02 (2006.01); F02M 59/36 (2006.01); F02M 59/46 (2006.01); F02M 57/02 (2006.01); F02D 41/20 (2006.01);
U.S. Cl.
CPC ...
F02M 47/027 (2013.01); F02M 59/366 (2013.01); F02D 41/20 (2013.01); F02D 2041/2017 (2013.01); F02D 2041/2058 (2013.01); F02D 2250/31 (2013.01); F02M 57/025 (2013.01); F02M 59/466 (2013.01); F02M 2200/502 (2013.01);
Abstract
A method of injecting fuel with a fuel injector includes applying a spill valve current to close a spill valve and applying a control valve current to move a control valve to an injection position. The method also includes discontinuing the application of the spill valve current to open the spill valve and preventing a return of the control valve to a non-injection position while detecting a timing when the spill valve opens.