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, 2011
Filed:
Oct. 07, 2010
Mark William Peters, Wolverine Lake, MI (US);
Richard Shimon, Royal Oak, MI (US);
Robert Roy Jentz, Westland, MI (US);
Scott Bohr, Plymouth, MI (US);
Ross Dykstra Pursifull, Dearborn, MI (US);
Mark William Peters, Wolverine Lake, MI (US);
Richard Shimon, Royal Oak, MI (US);
Robert Roy Jentz, Westland, MI (US);
Scott Bohr, Plymouth, MI (US);
Ross Dykstra Pursifull, Dearborn, MI (US);
Ford Global Technologies, LLC, Dearborn, MI (US);
Abstract
Systems and methods are provided for monitoring reverse flow of fuel vapors and/or air through a vehicle fuel vapor recovery system, said fuel vapor recovery system coupled to an engine intake of a boosted internal combustion engine. One example method comprises, during boost, when the fuel vapor recovery system is commanded to be sealed from the intake, indicating degradation based on a pressure value at a venturi in the fuel vapor recovery system.