What are the important functions of the fuel injector to improve the overall performance of the fuel injector?

What are the important functions of the fuel injector to improve the overall performance of the fuel injector?

As an important part of the diesel engine, the fuel injector, the plug, and the oil outlet valve are called the three precision parts of the diesel engine. When the electromagnetic coil is energized, suction is generated, the needle valve is sucked up, the nozzle hole is opened, and the fuel is sprayed out at high speed through the annular gap between the needle of the needle valve head and the nozzle hole, forming a mist, so that the fuel is fully burned. The working condition of the fuel injector directly affects the engine's power, fuel consumption, durability and many other important performances. However, many car owners often ignore the maintenance of the fuel injectors, resulting in problems with the overall performance of the engine. Let us take a look at the maintenance precautions of the fuel injector together today:

After the engine has been used for a period of time, due to the dust in the air and impurities in the diesel oil, the oil passage will be blocked or blocked, and the carbon deposits and gums produced during the combustion process will also adhere to the intake and exhaust valves, intake and exhaust valves, etc. On the air passage, throttle valve and combustion chamber, especially on the fuel injector of the diesel engine or the fuel injector of gasoline injection, the fuel injector is clogged and stuck, causing fuel injection leakage, poor atomization, or even no fuel injection , resulting in increased fuel consumption, decreased engine power, unstable idling, poor acceleration and difficult starting. According to tests, if 10% of the fuel injection quantity is blocked, it will lead to incomplete combustion of the engine, performance degradation, increased fuel consumption, and increased exhaust temperature. Therefore, it is necessary to clean all relevant systems of the engine.

The main problem of fuel injectors is clogging. There are many reasons for clogging:

1. The carbon deposits generated during engine combustion are deposited on the fuel injector or the impurities in the fuel block the passage of the fuel injector.

2. After a certain mileage of the car, especially the driving condition of the truck is very poor, the fuel system will also form certain deposits in the harsh environment for a long time;

3. The colloids and impurities contained in diesel oil or the dust and impurities brought during storage and transportation will also form sludge-like deposits in gasoline tanks, oil inlet pipes and other parts;

4. When we maintain the vehicle, if we add too much engine oil, the excess engine oil will flow from the piston ring into the cylinder, adhere to the fuel injector, and form carbon deposits after high-temperature combustion;

5. The unstable components in diesel oil will also undergo chemical reactions at a certain temperature to form colloidal and resinous viscous substances. When these substances are burned in fuel injectors, intake valves and other parts, they will become hard Carbon deposits.

Deposits in the fuel system of electronic fuel injection engines are very harmful, and they will affect the performance of high-precision components of electronic fuel injection systems. If it will cause the power of the engine to drop, it will also form carbon deposits in the intake valve and cause it to close tightly, resulting in unstable idle speed of the engine, increased fuel consumption, and excessive emissions; at the same time, carbon deposits will be formed on the piston top cylinder head. Due to the high heat capacity of carbon deposits and poor thermal conductivity, it is easy to cause engine knocking and shorten the service life. Therefore, the quality of the fuel injector plays a decisive role in the power of each engine. Regular cleaning of fuel injectors is very important to the engine.

While strengthening the maintenance of the fuel injector, it must be noted that once the fuel injector is damaged, it is difficult to repair it. At this time, it is necessary to choose professional quality and durable fuel injector products for the maintenance of the fuel injector. maintenance work.