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OwnerRoland Stahl, Gerhard Hoetzel +3inventors
InventorsRoland Stahl, Gerhard Hoetzel, Harald Neumann, Johann Riegel, Lothar Diehl
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The invention describes a sensor element for determining the concentration of gas components in gas mixtures, in particular in exhaust gases of combustion engines, comprising at least one measured gas space (13) and at least one gas inlet opening (17) through which the gas mixture is conveyable to the measured gas space (13), and at least one diffusion barrier (12) arranged between the gas inlet opening (17) and measured gas space (13). The diffusion barrier (12) has at least one region (14, 14a, 16) that contains a catalytically active material for establishing equilibrium in the gas mixture, and is divided into a coarse-pore and a fine-pore portion.
A sensor element for determining the concentration of gas components in gas mixtures, in particular in exhaust gases of combustion engines, comprising at least one measured gas space and at least one gas inlet opening through which the gas mixture is conveyable to the measured gas space, and at least one diffusion barrier arranged between the gas inlet opening and measured gas space, the diffusion barrier having at least one region that contains a catalytically active material for establishing equilibrium in the gas mixture,
The sensor element as defined in one of the foregoing claims,
The sensor element as defined in one of the foregoing claims,
The sensor element as defined in one of the foregoing claims,
The sensor element as defined in one of the foregoing claims,
The sensor element as defined in one of the foregoing claims,
Dependencies are inferred from the claim text.