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:
Jul. 24, 2018
Filed:
Apr. 18, 2016
General Electric Company, Schenectady, NY (US);
Omowoleola Chukuwuemeka Akinyemi, Niskayuna, NY (US);
Adam Klingbeil, Ballston Lake, NY (US);
Neil Xavier Blythe, Lawrence Park, PA (US);
Shawn Michael Gallagher, Lawrence Park, PA (US);
James Robert Mischler, Lawrence Park, PA (US);
Luke Henry, Lawrence Park, PA (US);
Jennifer Lynn Jackson, Cohoes, NY (US);
General Electric Company, Schenectady, NY (US);
Abstract
Various methods for controlling EGR rate are disclosed. In one embodiment, a method comprises routing at least a portion of exhaust from a first exhaust manifold to an intake manifold, and not to atmosphere, the first exhaust manifold exclusively coupled to a first cylinder group. The method further includes routing exhaust from at least one additional exhaust manifold coupled to a corresponding at least one additional cylinder group to atmosphere, and during a first engine operating condition where an engine fuel demand is below a threshold demand, not injecting fuel to each of a subset of cylinders in the first cylinder group while injecting fuel to a subset of all cylinders coupled to the at least one additional exhaust manifold, where a number of cylinders of the subset of cylinders in the first cylinder group decreases in response to an increase in a target EGR rate.