Method and apparatus for monitoring a catalytic converter

Details Method and apparatus for monitoring a catalytic converter Method and apparatus for monitoring a catalytic converter

1991-12-11

1993-11-09

Hart, Douglas

Power plants

Internal combustion engine with treatment or handling of...

Methods

60276, 60277, 123691, F01N 320

Patent

active

052591891

ABSTRACT:
A method for monitoring a catalytic converter for vehicles having Otto engines includes monitoring the composition of exhaust gases leaving a catalytic converter. An apparatus for monitoring the catalytic converter includes a sensor for hydrogen and/or carbon monoxide, and a sensor for oxygen.

REFERENCES:
patent: 4079714 (1978-03-01), Saito
patent: 4622809 (1986-11-01), Abthoff
patent: 4870938 (1989-10-01), Nakaniwa
patent: 5105651 (1992-04-01), Gutmann

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