Air/fuel-ratio detecting apparatus

Details Air/fuel-ratio detecting apparatus Air/fuel-ratio detecting apparatus

2005-05-10

2005-05-10

McCall, Eric S. (Department: 2855)

Measuring and testing

Gas analysis

Gas of combustion

C073S118040

Reexamination Certificate

active

06889536

ABSTRACT:
An air/fuel-ratio detecting apparatus includes a compact layer arranged on the outer surface of a solid electrolyte layer to externally conceal a gas diffusion layer, solid electrolyte layer, outer measuring electrode, and reference electrode to restrain entry of exhaust gas. A gas introduction window is formed in the compact layer to have a predetermined width. The gas introduction window allows entry of exhaust gas toward the gas diffusion layer and the outer measuring electrode in the range of an opening width of the gas introduction window.

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