Diesel Injector Fuel Injector 095000-5460 Denso Injector for Hino

The protruding amount of the nozzle refers to the depth that the nozzle of the fuel injector exceeds the cylinder head and enters the combustion chamber. It is generally adjusted by adjusting the thickness of the gasket between the installation holes on the fuel injector and the cylinder head. The protruding amount of the nozzle affects the position of the fuel and its mixing with the air, and is an important factor affecting the combustion in the cylinder, which in turn has great significance for the performance of the engine.
In order to further optimize the combustion system and improve the performance of the engine, this section mainly conducts experimental research on the influence of the nozzle protrusion on the performance of the diesel engine. Three kinds of fuel injector gaskets of 2.0mm, 1.5mm and 1.0mm are designed, and the corresponding nozzle protrusions are 1.5mm, 2.0mm and 2.5mm respectively, and the gaskets with different nozzle protrusions are tested under full load conditions. The performance of a large number of engines, and through the ESC test cycle, the emissions and so on were assessed. Figure 5.1 is the power curve at full load. It can be seen from the figure that the protrusion of the nozzle has little effect on the engine power. When the nozzle protrusion is 2.0mm, the power is slightly lower than the corresponding power of 1.5mm and 2.5mm in the low speed area. At the same time, at the rated speed point, its power is also lower than that of the other two kinds of nozzle protrusions, the difference is about 2kW, but it has reached the engine power requirement.