Injectors are the most expensive part of an engine.
Working Principle of Diesel Engine Injectors: They spray diesel into the air.
Working Principle of Injectors for Gasoline Engines: They spray gasoline onto the cylinder.
Some people have cars with loans, others with money saved over the years. It doesn’t really matter what, the tool is useful and important for its owner.
So why is it that so many people overlook this vital part of their lives. The answer could lie in high maintenance costs or other expenses.
We think so! Injector problems can be caused by poor fuel quality, poor fuel selection, and a shortened maintenance schedule. Newer engines are able to recognize these errors and will not allow for the first fuel system failure.
Fuel system failures can cause major problems in gasoline engines but they can also lead to significant increases in fuel costs for diesel engines. Diesel engines are powered by diesel fuel that has been sprayed onto the compressed oxygen. In diesel engines, gasoline fuels have to be mixed with the gasoline in the combustion chamber and ignited by a spark plug. In other words, injectors are the final word in both types of engine.
The Common-Rail system has been widely adopted in diesel engines over the last few years. This allows for lower fuel consumption and higher performance. New generation engines can also be used with high-quality fuel because they have a lower noise level and vibration. You can still find low-quality, inexpensive fuel in Turkey. After filling the fuel filter with non-standard diesel fuel, the solid or liquid fuels can build up in the fine holes of the injectors. The malfunction lamp will start to light up when the injectors become clogged.
This is a slightly better scenario for gasoline engines. It generates a minimum bill at 300 TL. Diesel can easily surpass 800 TL.
To avoid this expense, diesel engines should not emit black smoke. The injector nozzles can also be clogged by poor fuel.
To prevent them, injector cleaning should be performed. If you drive a gasoline vehicle, make sure that the fuel injector is cleaned at least once every 40,000km. If it is diesel, then every 25,000 to 30,000 km. The average cleaning cost is between 80-120TL. However, it’s better to fill your tank before any diesel in the fuel tank runs out.
Diesel engines must be maintained on a regular basis.
Is Injector Maintenance Important?
Injector maintenance should be performed between 80 and 200 TL. If your vehicle is gasoline or diesel, we recommend you do injector maintenance at 80-200 TL every 40,000 km. If your vehicle is not maintained regularly, it will suffer from clogging and decrease its performance.
How does the Injector work?
Operation of an injector is complex. Let’s break this down into smaller steps. The injector is free, the electromagnet does not have an electrical motor, and the guide needle remains closed. The line pressure is equal to that in the control chamber. Accordingly, the forces acting in the closing direction on the pressure rod/pin group overcome the opening force. The nozzle needle is an essential part of spraying. The injector needle is compressed into its position by the injector-nozzle spring. The injector is always filled with fuel and remains closed. Under rail pressure, the fuel chamber is located above the injector needle. The control piston creates an opposite pressure so that the rail pressure raises the injector head spring. There is no continuous injection. The solenoid is disengaged. The compression spring presses the valve ball of the armour into the outlet plug. High pressure is created when fuel flows into the valve control room. The injector needle stays closed due to the closing force. The guide needle is moved up when the electromagnet electrically supplies injection. This causes the outlet hole to have a greater cross-sectional area that the inlet hole. Because there isn’t enough flow through the inlet ports, diesel fuel is discharged from the control chamber and the pressure drops. The force acting on its upper end decreases, and the sprayer will open when the opening force is greater than the value. The feed chamber is continuously filled with diesel fuel. When the pressure pipe is full, the sprayer starts to flow and fuel is sent to the tanks.
The outlet plug opens and fuel flows to the tank through the valve control section via the upper space via the fuel return element. The pressure inside the valve control chamber falls and the control piston rises. The valve control chamber pressure is lower than the chamber pressure so the valve control piston must be pushed up and the injector spring depressed. When the control plunger in the upper position is in place, the needle is fully opened. The spraying process starts when the needle is fully opened.
By cutting off the electric supply of the electromagnet near the end of the injection, the outlet hole is forced to close. The pressure in the control room then increases rapidly to its original value.
The forces that act on the pressure bar pin become balanced. Because of this balance, pressure rod and pin are again able to move downwards. The injector stops fuel flow and the injection is terminated. The solenoid valve will fail, and the compression spring forces the armature to collapse. When the drain plug is closed, the pressure in the valve control room creates, just as in the rail. The injection stops when the power of both the valve control chamber (and the injector spring) exceeds the chamber power.
