Gas sensor for internal combustion engine, has pump supply line and heating pipeline that are electrically connected with each other and commonly ground, where Nernst voltage is measured between measuring line and reference pump supply line

摘要

The sensor has a pump supply line (16`) and a heating pipeline (23`) that are electrically connected with each other and are commonly ground, such that the pump flow is feedable through a measuring line (17`). A Nernst voltage is measurable between the measuring line and a reference pump supply line (20`). A reference pump supply is guided over the reference supply line to a reference electrode and from there to an external pump electrode.