Diesel engines are considered as the most efficient type of internal combustion engines that are widely used for transportation and power generation around the world. However, NO_x emissions have always been a major concern for the development of clean diesel vehicles. As this is the global byproduct of high temperature combustion, the dwindling of NO_x from emissions is required in stationary as well as mobile applications. Induction of argon into the combustion chamber is one of the promising methods to reduce NO_x emissions. This paper mainly focuses on the influence of argon atmosphere in diesel engine induction system and its effect on reduction of oxides of nitrogen and carbon dioxide emissions. Experimental investigation has been carried out on a single cylinder diesel engine with varying percentages of argon gas induction from 0 to 12 % in the intake manifold. The results revealed that the induction of argon at different dilution ratios has potential to significantly reduce the formation of carbon dioxide and oxides of nitrogen. It is also observed that, a slight reduction in exhaust gas temperature with no much variation in performance parameters. This paper has also reviewed various de-NO_x techniques used for diesel vehicles in detail.

柴油发动机被认为是最高效的内燃机类型，广泛用于世界各地的运输和发电。然而，NO _x排放一直是清洁柴油车发展的主要问题。由于这是高温燃烧的副产物全球中，NO的减少的_X从排放需要在静止和移动应用。将氩气引入燃烧室是减少 NO _x的有前途的方法之一排放。本文主要研究氩气气氛在柴油机进气系统中的影响及其对氮氧化物和二氧化碳排放量的减少作用。对进气歧管中氩气吸入百分比从 0 到 12% 不等的单缸柴油发动机进行了实验研究。结果表明，在不同稀释比下引入氩气有可能显着减少二氧化碳和氮氧化物的形成。还观察到，排气温度略有降低，而性能参数没有太大变化。本文还详细回顾了用于柴油车的各种_脱氮技术。