(上接2005年第7期)14一体化二次进气系统应用在摩托车上能起到什么作用?答:一体化二次进气系统能够提供O2进入摩托车的排气系统,一方面与高温废气中的CO和HC起氧化反应来降低排放;另一方面可为采用催化转化器时提供足够的O2,提高催化转化器的转化效率,达到降低摩托车有害气体排放的目的。目前一体化二次进气系统主要安装在发动机排气口,即通常说的缸头补气,它所起的作用是明显的,见表1、2所列实验数据。 (Continued on the 7th of July 2005) 14 integrated secondary air intake system can play a role in the motorcycle? A: The integrated secondary air intake system can provide O2 into the motorcycle exhaust system, on the one hand And high temperature exhaust gas CO and HC oxidation reaction to reduce emissions; the other hand, the use of catalytic converters to provide adequate O2, improve the catalytic converter conversion efficiency, to reduce the motorcycle emissions of harmful gases. Currently integrated secondary air intake system is mainly installed in the engine exhaust port, which is usually said cylinder head gas, it played a significant role, see Table 1, 2 experimental data listed.