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. 29, 2016
Filed:
Jan. 28, 2013
Applicant:
Audi Ag, Ingolstadt, DE;
Inventors:
Assignee:
AUDI AG, Ingolstadt, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02M 21/02 (2006.01); F02B 3/06 (2006.01); F02D 19/06 (2006.01); F02M 69/04 (2006.01); F02D 13/02 (2006.01); F02D 41/00 (2006.01); F02M 43/00 (2006.01); F02B 69/04 (2006.01);
U.S. Cl.
CPC ...
F02D 19/0615 (2013.01); F02B 69/04 (2013.01); F02D 13/0226 (2013.01); F02D 13/0234 (2013.01); F02D 19/0607 (2013.01); F02D 19/0613 (2013.01); F02D 19/0642 (2013.01); F02D 19/0647 (2013.01); F02D 19/0692 (2013.01); F02D 41/0025 (2013.01); F02M 43/00 (2013.01); F02M 69/046 (2013.01); F02D 41/0027 (2013.01); F02D 2041/001 (2013.01); Y02T 10/18 (2013.01); Y02T 10/36 (2013.01);
Abstract
A method for operating an internal combustion engine includes a fuel supply device for at least one first and one second fuel, wherein the internal combustion engine has at least one cylinder which includes at least one intake valve and into which air, in particular fresh air, can be supplied via an intake pipe. In a first operating mode of the internal combustion engine, the first fuel is introduced only into the intake pipe, and in a second operating mode, the second fuel is exclusively introduced directly into the cylinder, and in the second operating mode an intake valve opening time period is adjusted to be shorter than in the first operating mode.