Diesel Injector Fuel Injector 095000-1211 6156-11-3300 Denso Injector for Komatsu S6d125 PC400-7 Excavator

From the comprehensive analysis of the test results of the calibrated speed and load characteristics and the speed characteristics of the calibrated working conditions, it can be seen that the change of fuel injection pressure has a great influence on the dynamic performance (power, torque) of the engine. The flat torque curve under fuel injection pressure is the most ideal: In terms of economy, from the perspective of the three evaluation feature points of the calibration condition, 75% load condition, and maximum torque condition, the fuel consumption rate in the calibration condition, 75% load condition There is little difference between the operating conditions, within 5 g/(kw h), while the maximum torque operating conditions are quite different, exceeding 40 g/(kw h), and the fuel consumption rate at 16 MPa and 24 MPa obviously exceeds the standard exhaust In terms of smoke, the Bosh smoke at the maximum torque point at 16 MPa, 20 MPa, and 24 MPa are 6.8 FSU, 4.2 FSU, and 6.6 FSU, respectively, and the smoke at 16 MPa and 24 MPa obviously exceeds the standard. The reason why the fuel injection pressure affects the performance of the engine is that the fuel injection pressure affects the formation process of the mixture in the combustion chamber. Generally speaking, when the fuel injection pressure increases, the fuel injection speed will become faster and the diameter of the oil droplets will become smaller, which will accelerate the fuel gas. Mixing will shorten the ignition delay period, increase the burning speed, and advance the ignition point. However, the combustion process is divided into delayed combustion period, rapid combustion period, slow combustion period and supplementary combustion period, which is a complex process. The combustion situation is not only related to the fuel injection pressure, the position of the fuel injector in the combustion chamber, and the distribution of the injection holes. , It is also related to the volume, shape and valve timing of the combustion chamber. In addition, the design of the governor will also affect the fuel supply. Therefore, when other parameters remain unchanged, the appropriate fuel injection pressure will make the overall performance of the engine the best.