Diesel Injector Fuel Injector 095000-6383 Denso Injector for Komatsu Excavator

With the rapid development of vehicle diesel engine, diesel engine emission problem has attracted great attention, and the country has promulgated more and more strict emission laws and regulations. Although currently there are many diesel engines begin to use high pressure common rail system to reduce fuel consumption and reduce emissions, but in our present situation, the mechanical fuel injection pump is still favored by many users because of its cheap price, good reliability, convenient maintenance and other advantages... . At present, the main emission control difficulty of diesel engine lies in NO; And particles (PM), the two pollutants are opposite to each other in terms of formation conditions, and it is impossible to use a single technical means to achieve the simultaneous control of these two pollutants. NO, is the general term for various oxides of nitrogen during combustion, including NO, NO:, N: 0. Etc. The number of NO is the largest, and the production rate of NO in the combustion process largely depends on the combustion temperature. In addition, the oxygen concentration, especially the atomic oxygen concentration in the combustion zone, has a significant effect on NO. The production rate of is also very important. In addition, the chemical reaction also takes time, nitrogen and oxygen in high temperature retention time is NO. Production rate is another important factor. High temperature, oxygen enrichment and oxygen and nitrogen retention time at high temperature determine NO in diesel engine combustion process. Three elements of yield size. PM is composed of dry soot, soluble organic components, which can be reduced by reducing the sulfur content of diesel, and sulfates. Soluble organic components are heavy hydrocarbons, which can be removed by oxidation catalysts, so reducing particle emissions is focused on reducing the formation of dry soot 1. In order to reduce the emission value of NO, the static feed advance Angle needs to be delayed, but it will increase the smoke and PM. This requires the selection of the right injector, the injector aperture, high pressure flow optimization, shorten the combustion delay period, find the right static fuel supply advance Angle, complete the NO. And PM value decreased at the same time, so that diesel engine emission level meet the national Ⅲ emission standard.