Power plants – Internal combustion engine with treatment or handling of... – Methods
Reexamination Certificate
2005-09-13
2005-09-13
Tran, Binh Q. (Department: 3748)
Power plants
Internal combustion engine with treatment or handling of...
Methods
C060S297000, C060S299000, C060S301000, C060S303000, C044S358000, C044S359000, C044S361000, C044S366000, C123S00100A
Reexamination Certificate
active
06941743
ABSTRACT:
A method, apparatus, and fuel composition for the protection of a catalytic after treatment system and a method for protecting a catalytic after treatment system in a lean burn system are disclosed. A scavenging agent is introduced into the combustion chamber in an amount effective to complex with catalytic poisoning combustion byproducts and improve emissions system durability. In a preferred embodiment, the scavenger is an organometallic compound which also imparts additional desirable properties to the fuel.
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Openshaw Martin J.
Roos Joseph W.
Scull Herbert M.
Ethyl Corporation
Rainear Dennis H.
Robinson Leah O.
Tran Binh Q.
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