柴油车排气后处理装置PDPF的试验研究

Test study on diesel vehicle exhaust after-treatment device PDPF

介绍了一种用于柴油车排气后处理的PDPF的结构和工作原理。通过对比试验考察了PDPF的性能,包括ETC试验、全负荷烟度试验、自由加速烟度试验以及总功率检测。带PDPF与不带PDPF相比,PDPF对ETC排气中PM的降低效率达57.5%;对全负荷的滤纸式烟度和不透光烟度影响不大;使自由加速烟度有所下降;对发动机的动力性和经济性几乎没有影响。可靠性试验研究显示出PDPF的良好应用前景。

Structure and working principles of PDPF used for diesel vehicles exhaust after-treatment are introduced in this paper. The performances of PDPF were investigated by comparison tests, including ETC test,full load smoke test, free acceleration smoke test and gross power test. The comparison between PDPF and non- PDPF shows that the reduction efficiency of PM by PDPF was 57.5% in ETC test; PDPF had little effect on filter smoke and opacity smoke in full load smoke test; it slightly decreased the free acceleration smoke; and it almost had no impact on engine power and economical performance. Reliability test research shows that PDPF has a good application prospect.