Abstract:
The volumetric component of CO
2, CO, HC, NO and O
2 in exhaust of spark ignition engine was continually measured and analyzed under the condition of its starting, acceleration, and some steady modes. The results show that: (l) There is a peak value on the curve of CO emission at the starting of engine. (2) The variation of HC is the largest among the exhaust compositions. (3) The coefficients of CO
2, CO, HC NO and O
2 present a proper order, which are sequently 0.007-0.020, 0.049-0.288, 0.1-0.883 0.03-0.077 and 0.024-0.123, while engine is in steady operating mode macrographically.