1) four-way catalytic converter
四效催化器
1.
The principle and structure of four-way catalytic converter of diesel engine by non-thermal plasma technology is introduced in detail.
详细介绍了自行开发的采用低温等离子体技术的柴油机四效催化器的原理和结构。
2) four-way catalysts
四效催化剂
3) three-way catalyst
三效催化器
1.
According to the new European driving cycle(NEDC),the experiment was conducted on a chassis dynamometer and the size of exhaust particulates before and after three-way catalyst(TWC) was measured.
测量结果表明,汽油机排气中包含有大量的颗粒物,粒径主要分布在1μm以内;超细颗粒物体积浓度较小,但其数密度很大,起动阶段颗粒物排放非常恶劣;三效催化器对降低颗粒物总体积浓度有一定效果,催化效率在60%以上,但对降低颗粒数密度效果较差,催化效率只有30%,特别是对直径在40~120 nm之间的超细颗粒物催化效率仅为5%~10%。
2.
The control strategy with three-way catalyst(TWC) was investigated to reduce NOx emission of lean-burn gasoline engine.
为降低汽油机稀薄燃烧NOx排放,研究了采用三效催化器的控制策略,分析了三效催化器在略高于当量 空燃比的稀薄燃烧条件下对NOx转化效率急剧下降的原因,从而提出了在较高空燃比的稀薄燃烧条件下利用三效 催化器控制稀薄燃烧NOx排放的策略,并进行了试验研究。
4) TWC
三效催化器
1.
The light-off characteristics at different installed positions of TWC and different ignition timings were compared.
对小型点燃式电控LPG发动机匹配三效催化器的冷起动过程进行了试验研究,测量了冷起动过程排气管不同位置的排温变化,对比了催化器不同安装位置、不同点火提前角下的起燃特性。
5) catalytic converter
三效催化器
1.
Effects of flow distribution on performance of three-way catalytic converter(Ⅱ) results and analysis;
速度分布对三效催化器性能的影响(Ⅱ)结果与分析
2.
Effects of flow distribution on performance of three-way catalytic converter(Ⅰ) mathematical model;
速度分布对三效催化器性能的影响(Ⅰ)数理模型
3.
Corrected formulation of the pressure drop coefficient in catalytic converter was presented which is fit to the computational fluid dynamics (CFD) numerical simulation.
提出了三效催化器压降系数的修正公式。
6) three-way catalytic converter
三效催化转化器
1.
Prediction and numerical simulation of the aging process of three-way catalytic converter;
三效催化转化器老化过程预测及数值仿真
2.
Numerical simulation of the emission characteristic of automotive three-way catalytic converter;
车用三效催化转化器排放特性的数值模拟
3.
Numerical Simulation and Application Study on Three-Way Catalytic Converter with Multi-shapes and Geometry Parameter;
多形状多结构参数三效催化转化器数值模拟及应用研究
补充资料：三效催化器
三效催化器是同时可以降低CO、HC、NOX的催化转化器，主要由涂有贵金属铂（pt）、铑（Rh）、钯（pd）和其他一些催化剂的载体和壳体构成，另外还有垫层、隔热罩等部分。它只在发动机空燃比在理论空燃比附近时对CO、HC、NOX同时具有很高的转化效率，这需要对发动机的空燃比进行精确控制。三效催化器由于具有良好的转化性能，在汽车排气污染控制中得到广泛应用。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条