Deterioration detector system for catalyst in use for emission g

Details Deterioration detector system for catalyst in use for emission g Deterioration detector system for catalyst in use for emission g

1987-11-17

1989-11-28

Orsino, Joseph A.

Communications: electrical

Condition responsive indicating system

Specific condition

123198D, 731181, G08B 1710

Patent

active

048840661

ABSTRACT:
Deterioration detector system for catalyst in use for emission gas purifier, comprising; an emission passageway through which exhaust gas from internal combustion engine, passes by way of catalyst to facilitate the reducing and oxidizing reaction among the toxicant component of hydrocarbon, carbon monoxide and nitrogen oxide; a sensor placed at the emission passageway to position downstream of the catalyst against the exhaust gas flow so as to generate an output in direct proportion to air-fuel ratio in the exhaust gas; an annunciator arranged to activate in response to the output of more than the predetermined level generated from the air- fuel ratio sensor.

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patent: 4182300 (1980-01-01), Ono et al.
patent: 4252098 (1981-02-01), Tomczak et al.
patent: 4624232 (1986-11-01), Saito et al.
patent: 4661234 (1987-04-01), Takahashi et al.
patent: 4733358 (1988-03-01), Abthoff et al.

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