Internal-combustion engines – Charge forming device – Having fuel vapor recovery and storage system
Reexamination Certificate
2006-04-04
2006-04-04
Miller, Carl S. (Department: 3747)
Internal-combustion engines
Charge forming device
Having fuel vapor recovery and storage system
C123S1980DA, C095S146000
Reexamination Certificate
active
07021296
ABSTRACT:
An evaporative emission control system for a vehicle comprises a scrubber containing an activated carbon fiber material selected to adsorb butane and/or pentane isomer vapors in low concentrations in air passing through the scrubber and to desorb the adsorbed butane and/or pentane isomers without being heated. A method for reducing bleed emission to below about 3 mg per day uses the scrubber.
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General Motors Corporation
Marra Kathryn A.
Miller Carl S.
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