DefinePK

Abstract

The emissions regulations for diesel engines in applications such as ships, trains and heavy duty off-road vehicles and gensets worldwide are becoming more stringent and make extensive modifications to the power units necessary. At the same time, customers are constantly calling for more economical engines. Exhaust after treatment systems such as selective catalytic reduction (SCR) catalytic or diesel particulate filters are one way of lowering emissions, but also have a greater space requirement and potentially increase the engine s maintenance needs. Therefore exhaust emissions can be reduced by primarily reducing emissions by internal enhancements. Fuel combustion inside the engine is improved so that, if at all possible, emissions are not produced in the first place. The OEMs are moving ahead for high efficiency Fuel Injection Systems in order to stay alive in the competitive environment. High fuel efficiency and High Power Engines are not confined only to the passenger car segments of the market. The commercial vehicles are also demanding high power along with high torque. Owing to Government s regulations on emission it has become mandatory for OEMs to emphasis more on low emission vehicles. This paper shows the method to design a suitable drive mechanism for the diesel engine fuel injection pump capable of delivering high pressure up to 1600 bar. This enables better atomization of the fuel in combustion chamber and thereby reducing the emission of pollutants.