three way catalyst

The aging process of catalyst was investigated by performance evaluations done every 25h in the course of aging test and the evaluation method of deactivation degree for three way catalyst was also presented.

通过每老化25h后的性能测试，考察了催化剂性能随老化时间的变化特性。文中还提出了考察三效催化剂劣化强度的评价指标。

Three way catalyst ( TWC) is the main method to purify the automobile exhaust, and has already been developed into its fourth generation by now.

三效催化剂是汽车尾气净化最主要的方法，目前已发展到第四代。

The three way catalyst converter ( TWC) needs two oxygen sensors to put up trouble diagnosis according to OBD ⅱ specifications, one of which is installed in the upstream of TWC and the other in the down stream of TWC.

三效催化转化器（TWC）需要两个氧传感器方能按OBDⅡ进行故障诊断，其中一个装在TWC的上游，另一个装在下游。

Trouble Diagnosis of Three Way Catalyst Converter and Oxygen Sensor in Automotive Engine

汽车发动机三效催化转化器和氧传感器的故障诊断

In order to solve the matters, three way catalyst is newly designed and the control software of engine is improved.

通过分析，找到了缓解措施：重新改进和匹配三元催化器、优化控制软件等。

Effects of Air/ Fuel Ratio on the Incipient Combustion Perfomance of Three Way Catalyst

空燃比对三效催化剂起燃特性的影响

Based on the review and analysis of foreign researches, the paper presented the effet of A/ F ratio fluctuation on conversion efficiency of three way catalyst.

通过对国外资料的考察分析，论述了空燃比波动对车用三效催化剂活性的影响。

Experiments on temperature field and conversion efficiency of three way catalyst under different engine operation conditions

发动机不同工况下三效催化器的温度场和转化效率试验

The advance of automotive three way catalytic converter were described from two aspects of substrate and three way catalyst.

从载体及三效催化剂角度论述了车用三效催化转化器的发展；

Application of Rare-earth in Three-way Catalyst The Way to Improve the Effectiveness of Hight-Temperature W G S CatalySt

稀土在汽车尾气三效净化催化剂中应用的研究提高国产中变催化剂利用率的途径

The effects of the new catalyzing system consisting of traditional three way catalyst converter and adsorber-reduction catalyst converter on the emission characteristics and fuel economy of lean burn SI engine operated under different speeds and loads were investigated.

应用传统的三效催化器和稀燃NOx吸附还原催化器组成的新型复合尾气催化系统对稀燃发动机不同转速和负荷工况下的排放特性和燃油经济性的影响进行了实验研究。

Preparation and Properties of Washcoats for Three Way Catalyst

三效催化剂涂层制备与性能研究

The Catalytic Reaction Mechanism of NO+ CO under the Action of Three Way Catalyst

三效催化剂作用下的NO+CO催化反应机理

The results showed that putting three way catalyst before the NO_x adsorber catalyst is the best scheme of reducing NO_x emission in lean burn gasoline engine, and NO_x conversion efficiency reaches 97.3% in the experimental condition.

试验结果表明：三元催化转化器位于吸附还原催化转化器之前的布置方案具有最好的降低稀燃汽油机NOx排放的效果.在该试验条件下，NOx催化转化率最高可达到97.3%。

The reaction of the reduction of NO and the oxidation of CO on three way catalyst which has been compounded by Pt, Rh, Pd and their supporters is an important reaction in the removal of NO and CO from exhaust fumes.

NO与CO在Pt Rh Pd及载体组成的三效催化剂上的氧化还原反应是控制汽车尾气对空气污染的一个关键反应。

Evaluation of Three Way Catalyst and Design for Tester

三元催化器的评价及实验装置设计

Study on the poisoning effects of so_2 on the support of three way catalyst

SO2对三效催化剂载体的毒化作用研究

In this paper, active γ Al 2O 3 coating and Pd/ Na 2O/ K 2O/ γ Al 2O 3 three way catalyst were prepared by impregnation method.

本文以浸渍法制备了活性γAl2O3涂层及Pd/Na2O/K2O/γAl2O3三元催化剂。

On Wavelet-based Feature Extraction for Fault Diagnosis System of Three Way Catalyst

基于小波包分析的三元催化器故障特征提取

Cold start temperature, thermal stability and tolerance to sulfur dioxide poisoning of the three way catalyst ( TWC) were tested on laboratory simulated emission control system.

在实验室模拟尾气配气系统上，对Pd/Na2O/K2O/γAl2O3三元催化剂的起燃温度、抗高温老化及抗SO2中毒能力进行了分析与评价。