Solid electrolyte air/fuel ratio sensor with voltage control

Details Solid electrolyte air/fuel ratio sensor with voltage control Solid electrolyte air/fuel ratio sensor with voltage control

1986-10-06

1991-09-10

Niebling, John F.

Chemistry: electrical and wave energy

Apparatus

Electrolytic

204426, 204428, G01N 2726

Patent

active

050471376

ABSTRACT:
An air/fuel ratio sensor with a solid electrolyte oxygen pump and oxygen sensor defining a closed space therebetween. At least in the oxygen pump, porous electrodes sandwich an ionic oxygen conductive solid electrolyte. The voltage impressed on the electrodes of the pump is limited to a predetermined level, e.g., 6 V, in order to prevent blackening and cracking.

REFERENCES:
patent: 4622125 (1986-11-01), Oyama et al.
patent: 4622126 (1986-11-01), Shimomura
patent: 4624770 (1986-11-01), Yamada et al.
patent: 4702816 (1987-10-01), Hashimoto

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