Power plants – Internal combustion engine with treatment or handling of... – Methods
Patent
1990-06-08
2000-07-18
Langel, Wayne
Power plants
Internal combustion engine with treatment or handling of...
Methods
60297, 60311, 422171, 423212, 4232132, 4232135, 4232137, C01B 2120, F01N 300, F01N 302
Patent
active
060890142
ABSTRACT:
An engine exhaust system is disclosed which in operation is capable of substantially reducing the quantities of hydrocarbons emitted to the atmosphere during engine start-up. The system utilizes molecular sieve means, such as a high-silica zeolite, which function to adsorb hydrocarbons emitted during engine start-up, before the catalytic converter has attained its effective operating temperature. The system is designed so that, once the catalytic converter has attained an effective operating temperature, the hydrocarbons can be desorbed from the molecular sieve means and conveyed to the converter for conversion to non-toxic by-products.
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Day John P.
Frost Rodney I.
Lachman Irwin M.
Patil Mallanagouda D.
Socha, Jr. Louis S.
Corning Incorporated
Klee Maurice M.
Langel Wayne
van der Sterre K.
Wardell Richard N.
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