When using the fuel injector, many users encounter the situation that the fuel nozzle is stuck. Under normal circumstances, the fuel injector will have a certain service life depending on the type of product. Many users report that the fuel nozzle is stuck before the service life is reached. In view of this situation, in fact, it is mainly caused by the following reasons.

1. The passing oil has many impurities

Excessive impurities in the passing oil will cause the needle valve to close insufficiently, and too much impurities will also cause the oil to fail to flow normally, which leads to what we call jamming.

2. Poor cooling of the injector

When the temperature is too high, the cooling of the fuel injector will not meet the requirements, which will cause the fuel outlet valve to be stuck. There are many reasons for the overheating of the equipment, such as long-term use, improper use, long-term load use, etc. Many conditions can lead to overheating, which in turn affects the use of fuel injectors.

3. Low pressure

When the fuel is injected, the pressure is too low to reach the pressure of the fuel, which will cause the high-pressure medium in the combustion chamber to run back, and it will become stuck during use.

4. Problems in parts manufacturing

The selection of materials for the parts of the fuel injector itself is relatively poor. For example, the cylinder head injector mounting hole is too deep, the needle valve body and the cylinder head have too large pores, etc., these are the quality problems of their related parts, and then affect The use of fuel injection nozzles.

In addition to some of the reasons mentioned above, the sticking of the fuel injector is also related to the user's usage habits and usage environment.