Galvanic exhaust gas sensor with solid electrolyte

Details Galvanic exhaust gas sensor with solid electrolyte Galvanic exhaust gas sensor with solid electrolyte

1977-04-15

1978-12-12

Myhre, Charles J.

Internal-combustion engines

Noncompression

123119EC, 204 15, 204195S, 60276, 429 33, G01N 2746

Patent

active

041290992

ABSTRACT:
Apparatus and method for controlling internal combustion engine air to fuel ratios that includes a solid oxide electrolyte galvanic-type exhaust gas sensor. The sensor electrolyte is doped to have a significant internal thermally varying electronic conductivity, that materially reduces variation in sensor output voltage with variations in temperature. A dopant such as iron oxide provides substantially complete temperature compensation of the output voltage at sensor operating temperatures above about 450.degree. C.

REFERENCES:
patent: 3616274 (1971-10-01), Eddy
patent: 3773641 (1973-11-01), Fitterer
patent: 3847778 (1974-11-01), Riddel
patent: 3935089 (1976-01-01), Jogawa et al.
patent: 3960693 (1976-06-01), Weyl et al.
patent: 4034730 (1977-07-01), Ayres et al.
patent: 4061117 (1977-12-01), Ikeura

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