Automotive engine exhaust aftertreatment system including hydrocarbon adsorber with internal engine purge flow control
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United States of America Patent
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Dec 27, 1994
Grant Date -
N/A
app pub date -
Oct 4, 1993
filing date -
Oct 4, 1993
priority date (Note) -
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Abstract
An automotive internal combustion engine is equipped with a hydrocarbon adsorber for the purpose of controlling the emission of unburned hydrocarbons from the vehicle's tailpipe. Regeneration of the adsorber is achieved by an electronic engine controller operating a purge air system for drawing desorbed hydrocarbon material into the engine's intake.
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