Exhaust treatment device monitoring system

Details Exhaust treatment device monitoring system Exhaust treatment device monitoring system

2004-12-29

2009-12-01

Denion, Thomas E. (Department: 3748)

Power plants

Internal combustion engine with treatment or handling of...

By means producing a chemical reaction of a component of the...

C060S274000, C060S297000, C060S311000

Reexamination Certificate

active

07624572

ABSTRACT:
An exhaust system is provided having an exhaust path configured to direct an exhaust stream away from an engine. The system may also include an exhaust treatment device in the exhaust path and configured to act on one or more substances in the exhaust stream. Further, the system may include at least one temperature sensing device configured to provide an output indicative of a temperature at one or more locations on a working material of the exhaust treatment device. In addition, the system may include a controller configured to generate a temperature map of the working material of the exhaust treatment device and to determine deviations from an expected temperature map.

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