Air/fuel ratio detector

Details Air/fuel ratio detector Air/fuel ratio detector

1986-05-13

1987-12-15

Myracle, Jerry W.

Measuring and testing

Test stand

For engine

204425, G01M 1500

Patent

active

047124199

ABSTRACT:
An air/fuel ratio detector constructed of first and second elements positioned such that the gap between the closed end of the second element constructing the limit current type oxygen sensor and the end of a tubular heater is closed or such that the one of electrodes formed on the second element and located on the side contacting the exhaust gas is made of a material having no catalytic capability to purify the exhaust gas. As a result, the second element does not constitute a concentration cell so that the output characteristics obtainable are ideal from the rich to lean range of the air-fuel ratio.

REFERENCES:
patent: 4193857 (1980-03-01), Bannister et al.
patent: 4574627 (1986-03-01), Sakurai et al.

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