【编辑推荐】为应对日益严格的柴油车排放法规，研究人员创新性地将SCO（选择性催化氧化）与SCR（选择性催化还原）催化剂集成于DPF（柴油颗粒过滤器），构建n-SDPF系统。通过多物理场耦合模型，揭示了基底结构参数（壁厚、长度、通道宽度比）对NOx转化效率 ...

柴油车的DPF即柴油颗粒过滤器，是安装在排气系统中的环保装置；SCR即选择性催化还原技术，是针对尾气中NOx的处理工艺。这二者型号众多，不同品牌车型各有相关型号，比如梅赛德斯奔驰、斯堪尼亚等品牌不同类型车辆都有适配的。同时，不同批次达国六排放 ...

ABSTRACT This paper reports on a field test with 23 Volvo D12C non-exhaust gas recirculation diesel engines using the Diesel Particulate Filter (DPF), Selective Catalytic Reduction (SCR), and urea ...

LOUISVILLE. At the Mid-America Trucking Show yesterday, Volvo Trucks North America announced that its 2010 highway trucks equipped with SCR (selective catalytic reduction) emissions control systems ...

Modern medium- and heavy-duty trucks have sophisticated exhaust aftertreatment systems that can include a diesel oxidation catalyst (DOC), diesel particulate filter (DPF) and selective catalytic ...

Manufacturers are busy rolling out solutions to meet Final Tier 4 off-road requirements for diesel engine exhaust emissions, and the technologies look very familiar to those already in use in the ...

The move from Tier 3 to Tier 4 Final diesel engines above 74 horsepower brought with it a whole grab bag of new components and systems – diesel particulate filters (DPFs), diesel oxidation catalysts ...

The diesel particulate filter (DPF) has continued to improve over its 15-year existence. So have other components of aftertreatment systems (ATS) that help send cleaner exhaust through the DPF.

This story appears in the Aug. 8 print edition of Equipment & Maintenance Update, a supplement to Transport Topics. In the wake of federal clean-air mandates in 2007 ...

The announcement this summer that Cummins was voluntarily recalling 500,000 engines because of a defective emissions control component was a reminder that manufacturers still face technical challenges ...