diesel injector nozzle DLLA158PN312 common rail nozzle

In recent years, the diesel engine industry and scientific research institutes have carried out a lot of research on the working performance of diesel engine nozzles, which has created strong conditions for optimizing the working performance of diesel engine nozzles. Engineers conducted mathematical modeling and simulation analysis on the cavitation flow in the hole-type fuel nozzle, and optimized technical parameters such as injection pressure, back pressure, nozzle hole length-to-diameter ratio, and injection hole inlet fillet ratio; The internal flow characteristics of the cross-hole fuel nozzle were simulated by equal ports, which confirmed the good atomization performance of the cross-hole fuel nozzle under the new structure.

The quality of diesel oil is the prerequisite to ensure the normal operation of the fuel nozzles. Unqualified diesel oil quality may lead to poor fluidity of diesel oil, thereby affecting the atomization performance of fuel nozzles, and if there are too many impurities in diesel oil, it may also cause the fuel nozzles to The needle valve coupler is not closed tightly, and there are problems of insufficient pressure and oil leakage. The impact of diesel quality on fuel injection quality can be considered from two aspects. One is that the cleaning treatment of diesel is not in place. The fuel injection nozzle is blocked; the second is that the use environment of diesel oil is not correct. It is the common brand and scope of application of diesel oil in my country. The brand of diesel oil is directly related to the freezing point of diesel oil. Different brands determine that diesel oil cannot flow

If the diesel fuel is used in an unreasonable environment, it will have a great impact on the performance of the fuel nozzle