Electrochemical oxygen sensing element, particularly for determi

Details Electrochemical oxygen sensing element, particularly for determi Electrochemical oxygen sensing element, particularly for determi

1976-10-27

1977-12-27

Kaplan, G. L.

Chemistry: electrical and wave energy

Processes and products

Vacuum arc discharge coating

G01N 2746

Patent

active

040653722

ABSTRACT:
To provide protection to the sensitive solid ion conductive electrolyte, a metal sleeve is placed to surround the electrolyte, with clearance, and formed with openings having an increasing cross-sectional area starting from the housing or socket towards the bottom of the solid electrolyte tube to provide an approximately even temperature gradient upon exposure of the element to exhaust gases, the sleeve being additionally so formed that deflection surfaces or vanes are formed internally thereof, for example by punching the openings through the sleeve as elongated slots leaving deflecting vanes, to deflect gases passing through the openings from direct impingement on the solid electrolyte tube to protect the solid electrolyte tube against impact and contamination.

REFERENCES:
patent: 3844920 (1974-10-01), Burgett et al.
patent: 3891529 (1975-06-01), Beesch
patent: 3960692 (1976-06-01), Weyl et al.
patent: 3960693 (1976-06-01), Weyl et al.

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