Power plants – Internal combustion engine with treatment or handling of... – Methods
Patent
1992-04-15
1994-04-19
Hart, Douglas
Power plants
Internal combustion engine with treatment or handling of...
Methods
55DIG30, 60311, 422173, 95143, F01N 310, F01N 320, F01N 328
Patent
active
053035470
ABSTRACT:
An exhaust gas emissions control system lowers cold-start hydrocarbon emissions by using heat exchange structure to lower the temperature of exhaust gas prior to the exhaust gas passing through a hydrocarbon adsorbent and using the extracted heat to heat a catalytic converter to its light-off temperature. In some embodiments, multi-component hydrocarbon adsorbers effective under different operating conditions further reduce cold-start hydrocarbon emissions.
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Dictor Ronald A.
Hirschberg Eugene H.
Mieville Rodney L.
Renner Terrence A.
Robinson Lawrence C.
Amoco Corporation
Hart Douglas
Kretchmer Richard A.
McDonald Scott P.
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