Page 286 - Methods For Monitoring And Diagnosing The Efficiency Of Catalytic Converters A Patent - oriented Survey

268 Methods for Monitoring and Diagnosing the Eficiency of Catalytic Converters

The higher values downstream of the converter caused by the exothermic reaction emerge
dearly. Also clear, however, is the overall uneven shape, particularly of curve TI. There is not
always a usable difference between the curves TI and Tz. The temperature difference ATla
which is always present between the curves Tirand T2 is clear.