【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 ...

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 ...

国六较之国五标准更严格，要求氮氧化合物与颗粒物排放量更低，且新增了粒子数量的限制要求，未达到国六排放标准，各大主机厂商也纷纷大展身手，要么降低发动机动力，要么升级尾气处理。 国六时代也涌现出了一波新名词，比如EGR、DOC、DPF、SCR，这都是 ...

货车突然跑不动、油门踩到底速度却提不起来？别慌，这大概率是发动机进入了限扭模式——这是后处理系统（比如DPF、SCR）或传感器检测到异常时，为保护发动机和排放系统触发的“自保机制”。根据我多年接触货车维修的经验，限扭问题可轻可重，盲目操作 ...

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 ...

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 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.