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:
Sep. 02, 2014
Filed:
Sep. 01, 2010
Applicants:
Alexander Knafl, Anacortes, WA (US);
Patrick G. Szymkowicz, Shelby Township, MI (US);
Inventors:
Alexander Knafl, Anacortes, WA (US);
Patrick G. Szymkowicz, Shelby Township, MI (US);
Assignee:
GM Global Technology Operations LLC, Detroit, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02B 47/08 (2006.01); F02M 25/07 (2006.01); F02D 41/00 (2006.01);
U.S. Cl.
CPC ...
F02D 41/0077 (2013.01); F02M 25/0738 (2013.01); Y02T 10/47 (2013.01); F02M 25/0731 (2013.01); F02M 25/0701 (2013.01);
Abstract
A vehicular heat exchanger processes a exhaust gas recirculation flow. A method to manage combustion by-product contaminant deposits within the heat exchanger includes repeatedly cycling a flow control device controlling the exhaust gas recirculation flow through the heat exchanger from an original position to an intermediate position and back to the original position. The original position is determined based upon a required exhaust gas recirculation flow into an intake manifold.