In-cylinder reburn method for emissions reduction

Details In-cylinder reburn method for emissions reduction In-cylinder reburn method for emissions reduction

2005-11-22

2005-11-22

Wolfe, Jr., Willis R. (Department: 3747)

Internal-combustion engines

Charge forming device

Exhaust gas used with the combustible mixture

C123S021000

Reexamination Certificate

active

06966309

ABSTRACT:
A method applicable to lean-burn combustion engines uses excess air from previous engine cycles in a reburning process to provide exhaust gases characteristic of stoichiometric combustion. Stoichiometric combustion products are particularly useful for use by conventional emissions aftertreatment devices to reduce NOx, CO, and unburned hydrocarbons carried in the exhaust stream.

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