Heated electrolyte exhaust gas sensor and method of making it

Details Heated electrolyte exhaust gas sensor and method of making it Heated electrolyte exhaust gas sensor and method of making it

1978-11-27

1980-04-22

Tung, T.

Chemistry: electrical and wave energy

Processes and products

Vacuum arc discharge coating

G01N 2746

Patent

active

041994230

ABSTRACT:
A readily manufacturable heated solid electrolyte oxygen responsive exhaust gas sensor. An elongated heater is insulatingly supported in subassembly with a tubular reference electrode terminal in desired predetermined disposition relative to the solid electrolyte. The heater has an enlargement intermediate its ends. The heater is coaxially nested within a pair of ceramic sleeves, with the sleeves axially spaced by the enlargement. The sleeves are in turn coaxially disposed within the electrode terminal, and clamped together by inward electrode terminal shoulders, one of which is preferably formed by crimping. The heater enlargement is preferably integrally formed. No special inlet need be provided in the sensor for admission of air when air reference is used.

REFERENCES:
patent: 3546086 (1970-12-01), Sayles
patent: 3815560 (1974-06-01), Wahl et al.
patent: 3960693 (1976-06-01), Weyl et al.

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