Electrochemical type exhaust gas oxygen sensor

Details Electrochemical type exhaust gas oxygen sensor Electrochemical type exhaust gas oxygen sensor

1991-03-08

1992-08-18

Niebling, John

Chemistry: electrical and wave energy

Apparatus

Electrolytic

204424, G01N 27417

Patent

active

051396394

ABSTRACT:
This invention provides a solid electrolyte, electrochemical-type oxygen sensing device which is suitable for detecting oxygen partial pressures of exhaust gases emitted from an internal combustion engine. The oxygen sensing device of this invention has a novel self-aligning fixturing means for rigidly securing, sealing, and electrically contacting the solid electrolyte body within the sensor assembly. The electrically conductive fixturing means also electrically communicates the galvanic output signal generated between the reference and measuring electrodes provided on the solid electrolyte body to an external electrical connector. The fixturing means is a substantially tubular body having an outwardly flared region which is contiguous with an inwardly tapered end. The inwardly tapered end is matched to the inner diameter of the open end of the solid electrolyte body.

REFERENCES:
patent: 3844920 (1974-10-01), Burgett et al.
patent: 4076608 (1978-02-01), Fujishiro et al.
patent: 4220516 (1980-09-01), Sano et al.
patent: 4222840 (1980-09-01), Murphy et al.
patent: 4609454 (1986-09-01), Ziegler
patent: 4824550 (1989-04-01), Ket et al.

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