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:
Jun. 05, 2012
Filed:
Jul. 09, 2010
Joseph Norman Ulrey, Dearborn, MI (US);
Ross Dykstra Pursifull, Dearborn, MI (US);
Diana D. Brehob, Dearborn, MI (US);
Joseph Norman Ulrey, Dearborn, MI (US);
Ross Dykstra Pursifull, Dearborn, MI (US);
Diana D. Brehob, Dearborn, MI (US);
Ford Global Technologies, LLC, Dearborn, MI (US);
Abstract
A method for operation of an engine fuel system includes initiating a mitigating action based on a fuel rail pressure response, the fuel rail pressure response occurring after an engine shut-down. The mitigating action includes disabling vehicle operation if fuel rail pressure drops below a threshold value after activation of one of the higher or lower pressure pumps, the activation occurring before a subsequent engine start. In this way, a distinction can be made between internal and external leaks, allowing the mitigating action taken to be adjusted accordingly.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile