尿素喷雾粒子直径对重型柴油机SCR催化剂效率的影响；
The Influence of Urea Droplet Size on the Efficiency of SCR Catalysts for HD-Diesel Engines;
以优化燃烧过程、改善排放性能为目标，对某重型柴油机进行改进。
Improvement was carried out on a model of heavy duty diesel engine to optimize combustion process and emissions.
应用领域包括：小型家用发动机、重型柴油机s CR应用以及最新的汽车认证测试。
For applications including: small domestic engine, off-road diesel, heavy duty SCR through to the latest in passenger car certification.
这些要求对于商用车辆和其它重型车辆，经济性和可靠性居于首位，因此大多采用高效率的直喷式柴油机。
These requests are resided to to the company with vehicle and other heavy type vehicle, economy and credibility first, therefore mostly adopt to high-efficiencily keep a spray type diesel engine.
介绍了X6130系列重型汽车柴油机的设计原则、主要零部件结构特点、性能指标及可靠性试验结果。
This paper presents the design principles, structural features of the main parts and components, performance data and reliability test conditions of X6130 series heavy-duty automotive diesel engines.
近年来，随着重型大功率商用车柴油机强化程度的不断提高和废气排放标准的日趋严格，对柴油机及其机油的要求越来越高。
In recent years, with the improvement of heavy commercial vehicle diesel engine and increasingly strict emission regulations, there is more and more demand on the diesel engine and oils.
阐述了重型车用柴油机及轿车柴油机上采用的二级可变增压系统原理。
The principle of the two-phase variable supercharging system applied to heavy-duty automotive diesel engines and car diesel engines is indicated.
中重型车用柴油机排放已成为降低车辆排放的主要控制目标。
The exhaust emission of diesel engines for HD & MD vehicle has become the main controlled aim of reducing vehicle emissions.
中重型车用柴油机排放已成为降低车辆排放的主要控制目标。
The exhaust emission of diesel engines for HD & MD vehicle has become the main controlled aim of reducing vehicle emissions.
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