Power plants – Internal combustion engine with treatment or handling of... – Methods
Patent
1997-05-29
1999-12-21
Denion, Thomas E.
Power plants
Internal combustion engine with treatment or handling of...
Methods
60284, 60300, 219202, 219508, 322 28, F01N 300
Patent
active
060033045
ABSTRACT:
A catalytic converter of an engine, such as might be found in an automotive engine system, is capable of being quickly and electrically heated in order to reduce pollution emissions during critical cold start conditions. During cold start conditions, i.e. upon starting the engine, for a predetermined period of time the catalytic converter directly receives electrical power via a quick heating path connecting a catalyst power switch to the catalytic converter. Following the predetermined period of time after which the catalytic converter has been electrically heated, the catalyst power switch is connected to a junction block, such as a starter motor assembly, of the automotive engine system via a normal path.
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Anderson Stephen Wayne
Swanson David Frank
Denion Thomas E.
Galanthay Theodore E.
General Motors Corporation
Jorgenson Lisa K.
Larson Renee M.
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