Diesel Injector Fuel Injector 0445120474 compatible with injector Weichai Wp10

Low speed two-stroke Marine diesel engines, characterized by good economy and high reliability, are widely used in large ships, driving about 70% of the global freight volume, and playing an important role in the world economic system. Low speed two stroke Marine diesel engine has high power and high emission of harmful substances. The International Maritime Organization (IMO) began to implement Tier III standards in some emission control areas in 2016, requiring Marine diesel engines with a speed lower than 130r/min to emit no more than 3.4g/(kW·h) of NOx within the emission control area. Ships that fail to meet emissions standards face being unable to sail offshore in some developed countries. At present, there are two main technical routes for low-speed Marine diesel engines to meet the Tier III emission standards: (1) the selective catalytic reduction (selectivecatalyticreduction, SCR) technology, the catalytic reduction of NOx by adding urea N2, need an extra set of bulky post-processing equipment, and high maintenance cost; (2) exhaust-gas recirculation (EGR) technology reduces the combustion temperature in the cylinder by introducing exhaust-gas, thereby inhibiting the generation of NOx in the cylinder, but resulting in increased fuel consumption. In recent years, with the initial application of high pressure common rail technology in low speed Marine engines, the improvement of injection system layout and injection strategy flexibility has proved to have great potential to improve the in-cylinder oil and gas mixing and combustion process. In the literature, the micro-genetic algorithm is used to optimize the pre-injection parameters, and it is found that the appropriate pre-injection strategy can shorten the ignition delay period, improve the combustion efficiency and effectively reduce the fuel consumption.