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:
Apr. 07, 2015
Filed:
Sep. 10, 2012
Applicants:
Thomas G. Leone, Ypsilanti, MI (US);
Peter C. Moilanen, Clinton, MI (US);
Inventors:
Thomas G. Leone, Ypsilanti, MI (US);
Peter C. Moilanen, Clinton, MI (US);
Assignee:
Ford Global Technologies, LLC, Dearborn, MI (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01N 3/18 (2006.01); F02D 9/04 (2006.01); F02D 13/02 (2006.01); F02D 41/00 (2006.01); F02D 41/06 (2006.01); F02M 25/07 (2006.01);
U.S. Cl.
CPC ...
F02D 13/0219 (2013.01); F02D 9/04 (2013.01); F02D 13/0207 (2013.01); F02D 13/0265 (2013.01); F02D 41/0055 (2013.01); F02D 41/064 (2013.01); F02D 2250/34 (2013.01); F02M 25/0727 (2013.01); F02M 25/0752 (2013.01); F02M 25/0753 (2013.01); Y02T 10/18 (2013.01); Y02T 10/47 (2013.01);
Abstract
Embodiments for controlling an exhaust back-pressure valve are provided. In one example, a method for operating an engine comprises closing an exhaust back-pressure valve in response to a component temperature, and adjusting intake and/or exhaust valve operation in response to closing the exhaust back-pressure valve to reduce cylinder internal exhaust gas recirculation (EGR). In this way, combustion stability may be maintained while the exhaust back-pressure valve is closed.