New High Quality Diesel Common Rail Injector Nozzle DLLA142S791 0 433 271 403 Fuel Injector Parts 0433271403

The “stage” where the injector nozzle is located - the fuel injection system - is the core “command center” of the engine fuel supply. It is carefully placed near the cylinders, adjacent to the combustion chamber, always ready to “deliver” fuel to the “battlefield” of combustion with precision. From the outside, its size is small and delicate, but only a square inch, but the internal structure is complicated and precise to the extreme. Usually forged from special alloys with high-temperature resistance, abrasion resistance, and corrosion resistance to cope with the harsh conditions of high temperature, high pressure, and complex chemical environment inside the engine. Those naked eye indistinguishable injection holes, as thin as a hair, the diameter is often in the zero point a few millimeters up and down, was a specific arrangement and angle design, just like a carefully choreographed “dance formation”, only to make the fuel in the most ideal posture into the combustion chamber.

In the electronic control unit (ECU) as if the “intelligent brain” command, electrical signals quickly transmitted to the injector, activate the electromagnetic coil, instantly generating a strong magnetic force, pulling the injector nozzle needle valve lift. In an instant, stored in the high-pressure oil rail, accumulating a majestic pressure of fuel, like a surge of “energy tide”, along the tiny oil channel inside the injector nozzle, toward the injection hole rushing. In the instant through the injection hole, high-pressure fuel is “shaped” into billions of droplets as fine as mist, evenly dispersed in the combustion chamber, and air quickly mingled, constructing a perfect ratio of combustible mixture, just waiting for the spark plug to ignite this “energy spark” (gasoline engine), or by virtue of the compression stroke engine), or by virtue of the compression stroke created by the high temperature and high pressure environment to achieve “compression ignition” (diesel engine), and then release a surge of power to drive the piston reciprocating motion, so that the engine continues to roar running.

The excellence or otherwise of the injector nozzle, like the first card of a domino, has a profound impact on the subsequent chain reaction of the engine. Precise and accurate fuel atomization and proper control of the injection volume are the cornerstones of efficient combustion. In the “ideal country” of efficient combustion, the fuel can fully release its energy, the power output is linear and strong, the vehicle accelerates quickly, and the ship sails steadily; at the same time, the fuel utilization rate rises, and the fuel consumption data is reduced, which reduces the waste of resources, and is in line with the concept of green development nowadays. Moreover, good fuel injection effect can greatly inhibit the generation of pollutants such as carbon monoxide, hydrocarbons, nitrogen oxides and particulate matter, making exhaust emissions cleaner and helping ecological environment protection.

But the reality of operation, the injector nozzle is always facing heavy “test”. Fuel quality is uneven, impurities, gums and water from time to time “mixed” which, under the long-term accumulation, it is very easy to block the injection holes, so that the original fine oil mist becomes “sloppy” disorganized, destroying the rhythm of combustion, resulting in unstable engine idling, accelerating weakness, emissions Exceeding the standard; engine work of high temperature baking, high-pressure impact, over the years will cause wear and deformation of the fuel nozzle, sealing performance greatly reduced, fuel injection deviation, power and economy are dragged down. Therefore, the use of clean fuel, regular maintenance, and high quality fuel filters are necessary to protect the injector nozzle “health” and continue its efficient working life.

Focusing on the future, the wave of science and technology rolls forward, fuel injector nozzle will also take the innovation “express” continued to evolve. Such as the use of nanomaterials to strengthen their own structure, with the help of micro-electromechanical systems (MEMS) to achieve intelligent self-adjustment of injection parameters, and even with the new hybrid, pure fuel efficient combustion and other cutting-edge innovation of the engine mode, continue to sculpt the fuel and air “micro-dance”, in the power surge and environmentally friendly between the step out of a more subtle and harmonious rhythm, to continue to write this micro-dance in the field of the engine. Continuing to write this microscopic legend in the engine field.