Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture – Mixture is exhaust from internal-combustion engine
Reexamination Certificate
2006-11-28
2006-11-28
Johnson, Edward M. (Department: 1754)
Chemistry of inorganic compounds
Modifying or removing component of normally gaseous mixture
Mixture is exhaust from internal-combustion engine
C502S300000, C502S527170, C502S527190
Reexamination Certificate
active
07141226
ABSTRACT:
An oxidation catalyst for a light-duty diesel vehicle comprising a first upstream part (2) and a second downstream part (3) of high heat capacity relative to the first part, each part comprising a substrate and a catalyst support coated thereon. With this arrangement the diesel catalyst can reach light-off temperature more quickly and retain sufficient heat to maintain light-off temperature for substantially longer than conventional diesel catalyst arrangements.
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Johnson Edward M.
Johnson Matthey Public Limited Company
RatnerPrestia
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