Internal-combustion engines – Charge forming device – Having fuel vapor recovery and storage system
Reexamination Certificate
2011-03-08
2011-03-08
Moulis, Thomas N (Department: 3747)
Internal-combustion engines
Charge forming device
Having fuel vapor recovery and storage system
C073S114390
Reexamination Certificate
active
07900608
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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Bohr Scott
Jentz Robert Roy
Peters Mark William
Pursifull Ross Dykstra
Shimon Richard
Alleman Hall McCoy Russell & Tuttle LLP
Ford Global Technologies LLC
Lippa Allan J.
Moulis Thomas N
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