Exhaust gas purifying apparatus for internal combustion engine

Details Exhaust gas purifying apparatus for internal combustion engine Exhaust gas purifying apparatus for internal combustion engine

1998-11-10

2000-10-10

Denion, Thomas

Power plants

Internal combustion engine with treatment or handling of...

Having sensor or indicator of malfunction, unsafeness, or...

60291, 60285, 60287, F01N 300

Patent

active

061288985

ABSTRACT:
Disclosed is a technology of diagnosing an exhaust gas purifying apparatus about a fault in its temperature control function of controlling a temperature of an exhaust gas purifying catalyst. The exhaust gas purifying apparatus for an internal combustion engine includes the exhaust gas purifying catalyst, and a temperature control means for controlling the temperature of this exhaust gas purifying catalyst. The exhaust gas purifying apparatus is judged to be faulted, wherein at least one of a state of the temperature control means and a state of the exhaust gas purifying catalyst serves as a parameter.

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