The Small Air Hole on Fuel Tank Cover of Diesel Generator Set

During the operation of a diesel generator set, clean diesel needs to be burned to generate electricity. Unclean fuel not only causes incomplete combustion, but also leads to increased wear and tear of the unit's components, resulting in a decrease in power. Therefore, users must ensure the cleanliness of the fuel. However, careful users may also notice that a small air hole is left on the cover of the diesel generator set's fuel tank. Leaving a small air hole in the fuel tank not only makes it easy for air, moisture, and dust to enter, resulting in insufficient fuel cleanliness, but also makes it easy for the fuel to evaporate and overflow. Why is there still such a small pore left? Dingbo Electric will take you to learn more.

In order to prevent the fuel in the diesel generator tank from splashing out due to oscillation, as well as the overflow of oil vapor and the entry of external dust, the tank should be covered and sealed. But when the fuel level drops due to consumption, a certain degree of vacuum will form inside the fuel tank, causing the fuel pump to lose its ability to absorb oil. When the temperature is very high, fuel will evaporate, and the oil vapor will make the pressure inside the fuel tank too high. Both of these situations require automatic communication with the atmosphere when there is a pressure difference between the inside and outside of the fuel tank. So there should be ventilation holes on the cover of the fuel tank to balance the air pressure inside and outside the tank.

When using, it should be ensured that the vent hole on the fuel tank cap is smooth. If the ventilation hole is blocked or if the fuel tank cap is lost and the fuel tank mouth is punctured with plastic cloth, negative pressure will be formed in the fuel tank when the diesel generator set is working due to the decrease in fuel level, resulting in unstable operation, power reduction, automatic shutdown, and difficulty starting in a hot state.

Every subtle design of a diesel generator set plays an important role. From the above analysis, we can see that although the small air holes are an inconspicuous design, they play a significant role and directly affect the normal use of the diesel generator set. They also have an important impact on the performance of the unit. Therefore, when using a diesel generator set, it is important to regularly pay attention to the status of the small air holes on the fuel tank and observe whether they are blocked to ensure that the diesel generator set can work smoothly and normally.

Guangxi Dingbo Power Equipment Manufacturing Co.,Ltd is an early professional manufacturer of generators and diesel generator sets in China. The company has first-class national-level large-scale production and load testing equipment. Provide users with long-term diesel generator set sales, leasing, technical consultation, commissioning, maintenance, training services and generator set trusteeship business. If you would like to get more information welcome to contact us via sales@dieselgeneratortech.com.