Gas sensor for determining physical properties (e.g. lambda probe) has an insulation seal with a ceramic mantle lining the housing and an insulation packing enclosing the sensor element and sealing the mantle

摘要

A sensor determining a physical property of a gas (especially the oxygen concentration or the temperature of an exhaust gas of a combustion engine) has a metal housing (11) containing a sensor element (12) held by an insulation seal (13) is such that seal (13) has (A) a ceramic mantle (17) lining the housing (11); and (B) an insulation packing (16) enclosing the sensor element (12) and sealing the mantle (17).