Method and an apparatus for the treatment of exhaust gas from an IC engine
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United States of America Patent
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Feb 9, 1993
Grant Date -
N/A
app pub date -
Mar 19, 1991
filing date -
Mar 19, 1991
priority date (Note) -
Expired
status (Latency Note)
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Abstract
More particularly for the catalytic treatment of the exhaust gas of an IC engine, such as the IC engine of a motor vehicle, in the case of which the gases of combustion flow through a converter, the latter is provided with an emission buffer designed for the cold start state. It is capable of storing noxious emissions, more particularly those produced during a cold start, such as unburned hydrocarbons and to release them into the exhaust gas again.
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