1) 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。
2) 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。
3) 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。
4) 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
5) TWC
三效催化转化器
1.
A computational fluid dynamics code was used to simulate the flow field and pressure loss in three-way catalytic converter(TWC),and a contrastive test for characteristic curves of the engines with and without TWC was performed.
采用计算流体动力学软件对三效催化转化器 (TWC)流场和压力损失进行了数值模拟 ,并对原机与安装TWC后发动机的特性曲线进行了对比试验。
2.
After application ofElectronic Fuel Injection (EFI) and Three-Way-Catalyst (TWC) in gasoline engine,more than 90% of CO, NOX, THC emitted from the engine is reduced.
电控汽油喷射(EFI)和三效催化转化器(TWC)的应用,将发动机三种主要排气污染物THC、CO和NOX同时降低了90%以上。
6) Three-Way Catalytic Converter
三效催化净化器
1.
The Study of Volume of Substrate of the Three-Way Catalytic Converter for Automobile;
汽车三效催化净化器载体容积研究
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