Power plants – Internal combustion engine with treatment or handling of... – Material from exhaust structure fed to engine intake
Patent
1998-10-29
2000-07-04
Denion, Thomas
Power plants
Internal combustion engine with treatment or handling of...
Material from exhaust structure fed to engine intake
60274, 60286, 60295, 60297, 123443, 12356818, 123698, F02M 2506
Patent
active
060821000
ABSTRACT:
A method for operating a multicylinder internal combustion engine with at least one adsorber catalytic converter in the exhaust line of the internal combustion engine includes operating the adsorber catalytic converter with periodically alternating adsorption and desorption operation. The exhaust leaving the adsorber catalytic converter in desorption operation is recycled and/or an oxidation catalytic converter is provided upstream of the adsorber catalytic converter. Exhaust recycling takes place occurs selectively in only one set of the cylinders of the internal combustion engine and this set of cylinders is operated in a state of incomplete combustion during desorption operation. Rich afterburning may be performed during desorption operation of the adsorber catalytic converter in the oxidation catalytic converter connected upstream and the oxidation catalytic converter is operated at an increased temperature during short regeneration phases to remove soot.
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patent: 5758493 (1998-06-01), Asik et al.
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patent: 5946906 (1999-09-01), Akazaki et al.
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Boegner Walter
Duvinage Frank
Friess Walter
Haak Karl-Ernst
Krutzsch Bernd
Daimler-Chrysler AG
Denion Thomas
Tran Binh
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