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:
Nov. 13, 2018
Filed:
Nov. 28, 2016
Applicant:
GM Global Technology Operations Llc, Detroit, MI (US);
Inventors:
Isadora Ricci, Turin, IT;
Giorgio Nati, Villar Focchiardo, IT;
Cosma Negro, Candelu, IT;
Stefano Pellegrino, Troy, MI (US);
Assignee:
GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02M 1/00 (2006.01); F02D 41/40 (2006.01); F02D 41/02 (2006.01); F02D 41/38 (2006.01);
U.S. Cl.
CPC ...
F02D 41/405 (2013.01); F02D 41/027 (2013.01); F02D 41/402 (2013.01); F02D 41/029 (2013.01); F02D 41/3827 (2013.01); F02D 41/401 (2013.01); F02D 41/403 (2013.01); F02D 2041/389 (2013.01); F02D 2250/11 (2013.01); Y02T 10/44 (2013.01);
Abstract
A method of operating a fuel injector of an internal combustion engine having a reciprocating piston includes performing a multi after-injection pattern having at least one pair of consecutive injection pulses both starting after a top dead center of the piston and separated by a dwell time shorter than 200 as.