Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Scott Bohr0
Richard Shimon0
Robert Roy Jentz0
Ross Dykstra Pursifull0
Mark William Peters0
Date of Patent
March 8, 2011
0Patent Application Number
129003820
Date Filed
October 7, 2010
0Patent Primary Examiner
Patent 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.
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