Communications: electrical – Condition responsive indicating system – Specific condition
Patent
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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Miyata Shigeru
Sawada Toshiki
Jackson Jill D.
NGK Spark Plug Co. Ltd.
Orsino Joseph A.
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