Power plants – Internal combustion engine with treatment or handling of... – By means producing a chemical reaction of a component of the...
Reexamination Certificate
2006-05-23
2006-05-23
Denion, Thomas (Department: 3748)
Power plants
Internal combustion engine with treatment or handling of...
By means producing a chemical reaction of a component of the...
C060S274000, C060S278000, C060S286000, C060S301000
Reexamination Certificate
active
07047730
ABSTRACT:
De-sulfurizing a NOxadsorber catalyst (48) without significantly increasing the temperature of exhaust gases leaving the engine exhaust manifold (42) by using a diesel oxidation catalyst (46) between the exhaust manifold and the NOxadsorber catalyst to elevate exhaust gas temperature entering the NOxadsorber catalyst to suitable de-sulfurizing temperature through control of certain aspects of engine operation (24, 28, 52).
REFERENCES:
patent: 5974791 (1999-11-01), Hirota et al.
patent: 6164064 (2000-12-01), Pott
patent: 6269634 (2001-08-01), Yokota et al.
patent: 6615580 (2003-09-01), Khair et al.
Barasa Patrick D.
O'Connor Justin M.
Ren Shouxian
Wang Xinlei
Calfa Jeffrey P.
Denion Thomas
International Engine Intellectual Property Company LLC
Lukasik Susan L.
Sullivan Dennis Kelly
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