Chemical apparatus and process disinfecting – deodorizing – preser – Chemical reactor – Waste gas purifier
Reexamination Certificate
2007-09-24
2009-10-06
Griffin, Walter D (Department: 1797)
Chemical apparatus and process disinfecting, deodorizing, preser
Chemical reactor
Waste gas purifier
C055S522000, C055S523000, C055S524000
Reexamination Certificate
active
07597859
ABSTRACT:
An exhaust gas system for an internal combustion engine includes a first exhaust treatment unit with a first back pressure and a second exhaust treatment unit with a second back pressure being higher than the first back pressure. The system advantageously enables the configuration of systems having two exhaust treatment units that are disposed one behind the other in flow direction. The first and/or second exhaust treatment unit can have a smaller construction due to the homogenization of flow. This applies, for example, when an oxidation-type catalytic converter is provided as the first exhaust treatment unit and when a particulate filter is provided as the second exhaust treatment unit. The homogenization of flow in the first exhaust treatment unit increases the conversion rate so that the first and/or second exhaust treatment unit can be provided with a smaller construction. This saves considerable costs when configuring such systems.
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English translation of patent EP1010462.
English translation of patent EP0581190.
Brück Rolf
Scheeder Andreas
Emitec Gesellschaft fuer Emissionstechnolgie mbH
Greenberg Laurence A.
Griffin Walter D
Locher Ralph E.
Orlando Amber
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