Automotive diesel engine is implemented the national six emission standards in China,diesel oxida-tion catalytic converter(DOC)is required to meet regulatory requirement.This paper is based on a heavy-duty diesel engine,Equipped with multi-channel emission test engine bench.Compare the effects of different DOC schemes on NO conversion efficiency,HC ignition,SCR conversion efficiency and so on,the law of influence of DOC formulation on catalytic converter performance was obtained.Combined with the use of diesel engines in different market segments,the differentiated DOC scheme to meet the vehicle application and cost optimization is presented.
维普
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