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:
Dec. 05, 2023
Filed:
Feb. 17, 2020
Applicant:
Scania Cv Ab, Södertälje, SE;
Inventors:
Andreas Dahl, Nyköping, SE;
Michael Vallinder, Mölnbo, SE;
Assignee:
Scania CV AB, Södertälje, SE;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02D 41/40 (2006.01); F02D 41/00 (2006.01); F02D 13/02 (2006.01);
U.S. Cl.
CPC ...
F02D 41/402 (2013.01); F02D 13/0249 (2013.01); F02D 41/009 (2013.01);
Abstract
Disclosed is a four-stroke direct injection engine comprising a camshaft, and exhaust valve, and a control system. The control system is configured to change the timing of the camshaft to advance a closing of the exhaust valve, control a first fuel injection step during a compression stroke of the piston, control a second fuel injection step during a power stroke of the piston, and control a third fuel injection step, after the second fuel injection step, during the power stroke of the piston.