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:
Oct. 03, 2017
Filed:
May. 07, 2013
Applicant:
Ford Global Technologies, Llc, Dearborn, MI (US);
Inventors:
David Karl Bidner, Livonia, MI (US);
Mark Allen Dearth, Dearborn, MI (US);
Gopichandra Surnilla, West Bloomfield, MI (US);
Assignee:
Ford Global Technologies, LLC, Dearborn, MI (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F02D 19/00 (2006.01); F02D 19/08 (2006.01); F02D 19/06 (2006.01); F02D 19/10 (2006.01); F02D 19/12 (2006.01); F02M 26/05 (2016.01); F02M 26/06 (2016.01);
U.S. Cl.
CPC ...
F02D 19/081 (2013.01); F02D 19/0642 (2013.01); F02D 19/0647 (2013.01); F02D 19/10 (2013.01); F02D 19/12 (2013.01); F02D 19/0689 (2013.01); F02D 19/087 (2013.01); F02M 26/05 (2016.02); F02M 26/06 (2016.02); Y02T 10/36 (2013.01);
Abstract
A method for operating an engine, comprising port injecting a first quantity of a first gaseous fuel in a cylinder cycle and direct injecting a second quantity of a secondary injectant in the cylinder cycle as a function of a desired air-to-fuel ratio (AFR), the desired AFR based on a temperature of an engine cylinder valve. The desired AFR may be outside the AFR range available during natural gas combustion alone and thus allows for cooler engine operation.