G - Physics – 01 – M
Patent
G - Physics
01
M
324/25, 324/25.5
G01M 15/00 (2006.01) G01N 31/00 (2006.01) H01C 13/00 (2006.01)
Patent
CA 1067959
STOICHIOMETRIC AIR/FUEL RATIO EXHAUST GAS SENSOR ABSTRACT OF THE DISCLOSURE A stoichiometric air/fuel ratio exhaust gas sensor construction particularly useful with variable resistance partial pressure of oxygen responsive sensor material is disclosed. A generally cylindrical mounting body, formed of corrosion resistant material, is arranged for receipt within the exhaust system of an internal combustion engine and is provided with a ceramic insert member for support of a wafer of variable resistance sensor material. The ceramic insert member is comprised of an extending first portion having a hollow slotted tip for receipt and support of the wafer of partial pressure of oxygen responsive ceramic sensor material. The extending first portion of the ceramic insert member is arranged to position the wafer within, and extending from, a remote free end of the cylindrical housing body. The wafer includes a pair of extending high temperature resistant electrical conductors which are received within bores provided therefor in the extending first portion of the ceramic insert member. The wafer leads are electrically connected by a glass seal material to a pair of electrically low resistance, high temperature resistant relatively rigid connector pins which are received within a pair of passages extending from the rear face of the ceramic insert member and intersecting the wafer conductor passages.
317990
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