OXYGEN SENSOR FOR INTERNAL COMBUSTION ENGINE

摘要

PURPOSE: An oxygen sensor for an internal combustion engine is provided to prevent the deterioration of permeable components by equipping the permeable components for the inflow of atmospheric reference air in a signal transmission connector with a relatively low temperature. CONSTITUTION: An oxygen sensor for an internal combustion engine comprises a sensing unit, and a signal transmission wire(150), and a signal transmission connector(160) The sensing unit is protruded into the exhaust pipe(3) of an internal combustion engine for measuring a fuel-air ratio. The signal transmission wire is electrically connected to the sensing unit for delivering the fuel-air ratio signal. The signal transmission connector is electrically connected in the signal transmission wire. The signal transmission connector is equipped with a permeable component for exchanging reference air in order to enable the sensing unit to sense the reference air. [Reference numerals] (162) The atmosphere; (AA) Exhaust gas