High Precision Fuel Nozzle DLLA154P2763 Diesel Injector Nozzle Auto Spare Parts

In the complex and delicate “power heart” of the automobile engine, the quality of atomization of the injector nozzles, many factors intertwine to influence the engine performance, fuel consumption and emissions performance.

Fuel characteristic viscosity as fuel label, viscosity is too high, like thick syrup, flow through the nozzle is difficult to be broken into fine droplets, the atomization effect is greatly reduced; on the contrary, moderate low viscosity so that the fuel in the injection pressure driven, easy to break, uniform diffusion. Diesel fuel sulfur content should not be underestimated, excessive sulfur erosion of fuel nozzle precision internal, so that the fuel injection trajectory disorder, atomization uniformity damage. Distillation range dimension, unreasonable distillation range will change the fuel evaporation rhythm, the atomization and vaporization process should be coordinated to interfere with the overall atomization effect.

Like modern advanced high-pressure common rail technology, precise control of pressure, different working conditions can guarantee the fuel to the ideal state of “ink on the field”, atomization of superior quality; contrast to the traditional mechanical pump, pressure “elasticity” is not enough, the injection pressure is limited, the fuel droplets are relatively large, uneven distribution, just like a woman scattering flowers. In contrast, the traditional mechanical pump, pressure “elasticity” is not enough, the injection pressure is limited, the fuel droplets are relatively coarse, uneven distribution, like a hasty on the battlefield “scattered soldiers”, in the combustion “battlefield” difficult to show their hands.

The nozzle's own structure is to choreograph this “dance” of the “subtle mold”. The diameter and number of nozzles work well together, fine aperture with a large number of nozzles, just like a multi-tube “gun”, the fuel flow fine “cutting”, greatly expanding the contact with the air “stage”, helping to improve atomization; can be daily routine with the “battlefield” in the combustion “battlefield” difficult to show their hands. Help atomization enhancement; can daily carbon, gum precipitation, like a “roadblock” blocking the nozzle, changing the trajectory and shape of the fuel injection, atomization of the loss of beauty. Internal runner design is a hidden mystery, smooth and smooth, reasonable curved layout of the runner, to ensure that the fuel distribution “a bowl of water end of the level”, the nozzle “rain and dew”, stable output of fuel; swirling runners to add “ingenuity The swirling flow path adds “ingenuity” to create internal “small vortex”, “stirring” the fuel in advance, and “warming up” for perfect atomization at the outlet.

Engine operating conditions high speed, large load conditions, the need for fuel “surging”, if the injection system response lag, pressure fluctuations ups and downs, fuel injection chaotic, atomization quality cliff fall; low temperature environment, the fuel “frozen hands and feet”, viscosity In low temperature environment, the fuel “frozen arms and legs”, viscosity climbing, volatility plummeted, from the nozzle after spraying difficult to stretch the atomization, at this time the preheating device came on the scene, just like a “warming furnace” to help the fuel to find the “dynamic” state.

External air conditions warm and hot and fast-flowing, turbulence-rich intake air, as enthusiastic “dance partner”, embracing the fuel droplets to help it quickly evaporate, fully mixed; and cold, stagnant intake air, so that the fuel droplets “alone”, wandering hard to disperse, only in localized “pile up”, combustion efficiency is frustrated, emissions ‘black tail’ also quietly appear. Visible, injector nozzle atomization quality in the complexity of multiple factors “ensemble” under the molding, guarding the optimization of the need for all-round “fine-tuning”, so that the engine “dance” light, power surging. The engine will be able to “dance” light, power surging.