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:
Mar. 08, 2016
Filed:
Jan. 17, 2013
Ford Global Technologies, Llc, Dearborn, MI (US);
Brad Alan Boyer, Canton, MI (US);
Eric Warren Curtis, Milan, MI (US);
Kim Hwe Ku, West Bloomfield, MI (US);
Gregory Patrick McConville, Ann Arbor, MI (US);
James Douglas Ervin, Novi, MI (US);
Daniel Joseph Styles, Canton, MI (US);
Joseph Norman Ulrey, Dearborn, MI (US);
Michael Howard Shelby, Plymouth, MI (US);
Ford Global Technologies, LLC, Dearborn, MI (US);
Abstract
An engine is provided that includes an exhaust gas recirculation (EGR) conduit in fluidic communication with a first exhaust valve in a cylinder and an intake system, an exhaust conduit in fluidic communication with a second exhaust valve in the cylinder and an emission control device. During operation with the first valve active and the second valve deactivated, a fixed EGR level can be provided. However, during operation with the first valve deactivated and the second valve active, increased engine output can be achieved with reduced EGR without requiring additional exhaust throttling or switching valves.