New Injector Nozzle Dsla150p1248 0433175367 for Fuel Injector 0414720131 0414720204 0414720209

The fuel injector is a key component of the diesel injector, and its internal flow performance and spray characteristics play a decisive role in the performance of the diesel fuel injection system and the quality of combustion in the cylinder. During the working process of the fuel injector, cavitation may occur inside the fuel injector due to pressure changes, and the cavitation of the fuel increases the spray cone angle at the outlet of the fuel injector while reducing the flow efficiency. In addition, the generation and collapse of cavitation bubbles in the injection hole will cause the cavitation of the injector, which will affect the life and reliability of the injector [2]. The research in literature [3] shows that the pressure fluctuation caused by cavitation will cause the non-uniform distribution of fuel pressure in the injection hole, thus affecting the consistency of cycle fuel injection. Therefore, reducing the cavitation phenomenon is of great significance for improving the flow performance and reliability of the injector. The atomization of the fuel directly determines the quality of the mixture in the cylinder, which affects the combustion and emission process of the diesel engine [4], so improving the atomization performance of the fuel injector is also of great significance.

In the existing research, the research on the internal flow characteristics and spray characteristics of the fuel injector has been quite in-depth, but the two characteristics are considered at the same time to ensure that the fuel injector has a large enough outlet flow rate and a weak cavitation degree at the same time. The effect is the best and there are few studies on structural parameter optimization design, so it is difficult to provide direct reference for the development of fuel injectors