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. 23, 2010
Filed:
Jul. 11, 2007
Robert A. Stein, Saline, MI (US);
Leslie Bromberg, Sharon, MA (US);
Paul N. Blumberg, Southfield, MI (US);
Daniel R. Cohn, Cambridge, MA (US);
John B. Heywood, Newton, MA (US);
Robert A. Stein, Saline, MI (US);
Leslie Bromberg, Sharon, MA (US);
Paul N. Blumberg, Southfield, MI (US);
Daniel R. Cohn, Cambridge, MA (US);
John B. Heywood, Newton, MA (US);
Ford Global Technologies, LLC, Dearborn, MI (US);
Ethanol Boosting Systems, LLC, Cambridge, MA (US);
Abstract
As one embodiment, a method of operating an engine of a vehicle is provided wherein the engine has a variable engine output. The method comprises during a first engine output, delivering a first fuel to at least a cylinder of the engine via a first injector and directly injecting a second fuel directly into said cylinder via a second injector; and during a second engine output lower than said first engine output, delivering said first fuel to said at least a cylinder of the engine via said first injector and directly injecting at least a purging substance via said second injector based on an idle period since a previous injection by said second injector.