Measuring and testing – Internal combustion engine or related engine system or... – Exhaust system
Reexamination Certificate
2007-12-20
2009-12-01
McCall, Eric S (Department: 2855)
Measuring and testing
Internal combustion engine or related engine system or...
Exhaust system
Reexamination Certificate
active
07624628
ABSTRACT:
The present disclosure is directed at a method, system and apparatus that may include an oxidation catalyst, a first sensor positioned upstream of the oxidation catalyst, a second sensor positioned downstream of the oxidation catalyst. The first and second sensors may respond differently to the concentration of NO and NO2. In addition, the first and second sensors may provide signals, which may be received by a processor to determine oxidation catalyst efficiency.
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Grossman Tucker et al
McCall Eric S
Southwest Research Institute
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