Wide-range air fuel ratio oxygen sensor

Details Wide-range air fuel ratio oxygen sensor Wide-range air fuel ratio oxygen sensor

1995-09-28

1998-01-20

Pyon, Harold Y.

Chemistry: electrical and wave energy

Apparatus

Electrolytic

204426, 204427, 204429, 422 83, G01N 2727

Patent

active

057097879

ABSTRACT:
A wide-range air fuel ratio oxygen sensor including a pump cell, a sensor cell, and a porous diffusion layer interposed between the pump cell and the sensor cell and a method for fabricating the oxygen sensor. The oxygen sensor generates output pumping current with a very small dispersion range of about .+-.2% by virtue of the activation effect of the catalyst such as Pt mixed into Al.sub.2 O.sub.3 of the porous diffusion layer.

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patent: 5271816 (1993-12-01), Tanaka et al.

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