Engine fault analysis on catalytic converter equipped autos

Measuring and testing – Simulating operating condition – Marine

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364431, G01M 1500

Patent

active

041754271

ABSTRACT:
An apparatus and method to isolate faults in a catalytic converter equipped internal combustion engine.
The exhaust is analyzed to determine hydrocarbon content, carbon monoxide content and oxygen content and this data is processed through an electronic circuit which accumulates information to be disclosed at the termination of testing.

REFERENCES:
patent: 3998095 (1976-12-01), Tinkham et al.
patent: 4108362 (1978-08-01), Trussell et al.

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