| 摘要 |
In an exhaust gas purifying apparatus associated with a fuel-injected internal combustion engine, in the exhaust conduit there is situated a catalyst and, upstream thereof, a thermal reactor which is supplied with secondary air and secondary fuel as a function of the oxygen concentration in the exhaust conduit during the warm-up run of the engine. During warm engine run the primary fuel quantities required for the combustion in the engine cylinders are controlled as a function of the aforenoted oxygen concentration.
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