Air/fuel ratio measuring device

摘要

An air-fuel ratio measuring device in which an exhaust gas suction pipe with a throttle nozzle and a dilution air pipe are joined with each other at a surge tank to which a suction pump is connected and two capillary tubes are branched from the two pipes on the upstream side of the surge tank, respectively. Further, a mixture pipe is extended from a joining point of the two capillary tubes. This device is simple in structure and makes it possible to accurately measure the air-fuel ratio.