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:
Jan. 26, 2016
Filed:
Sep. 11, 2012
Applicants:
Robert Roy Jentz, Westland, MI (US);
Mark W. Peters, Wolverine Lake, MI (US);
Michael Casedy, Ann Arbor, MI (US);
Aed M Dudar, Canton, MI (US);
Inventors:
Robert Roy Jentz, Westland, MI (US);
Mark W. Peters, Wolverine Lake, MI (US);
Michael Casedy, Ann Arbor, MI (US);
Aed M Dudar, Canton, MI (US);
Assignee:
Ford Global Technologies, LLC, Dearborn, MI (US);
Primary Examiner:
Int. Cl.
CPC ...
F02M 25/08 (2006.01);
U.S. Cl.
CPC ...
F02M 25/0809 (2013.01);
Abstract
Methods and system are provided for identifying unintended closing (or corking) of a mechanical valve coupled to a fuel tank. If tank vent valve corking is identified during a leak test, fuel tank pressure data collected during the leak test is disregarded and not used to determine a fuel system leak. Instead, a fuel system leak test is repeated to improve reliability of test results.