When the tower is filled with oil, it will leak oil. What happened?

1 Usually, after refueling the jump gun, the oiler will continue to refuel in the tank in order to make up an integer. In fact, this method is not very correct. In the second jump, the amount is rounded up. At this time, because the fuel tank is full, it will leak oil if you jump the gun again.

Because gasoline is more volatile than water, the oil in the oil tank will change from liquid to gas when it encounters heat (sunlight, heat generated by electric gasoline pump), which will increase the pressure in the oil tank. Even if the gasoline does not leak from the cover valve, for the oil tower of engineering plastics, there should be room for the gasoline vapor after gasoline evaporation.

Let's talk about the situation of too much gas, which is also the most common problem in our daily life. If too much oil is added, it will expand and overflow due to temperature change, which is likely to cause the danger of spontaneous combustion of the vehicle. At the same time, too much fuel will damage the carbon canister, and excess gasoline will flow into the carbon canister with fuel vapor to form damage. When the carbon canister is damaged and gasoline vapor cannot be filtered, gasoline will be introduced into the body. Because there are many harmful substances in gasoline, long-term exposure to gasoline vapor is harmful to the body and even causes cancer.

In another case, when the gas is refueled too fast, the air in it is suddenly ejected after being compressed, and when it is almost full, the flow rate decreases, and then it is added after the bubbles are slowly exhausted. If the fuel tank is not full, there will be no fuel injection.

5 Excessive refueling is harmful to vehicles. When the oil is too full, the volume expansion of gasoline will burst the oil tank. So when the vehicle is designed, there are air holes. If the oil is too full, it will overflow to the outside through the exhaust hole. Moreover, gasoline is particularly volatile and will burn instantly when it meets an open flame. Cause irreparable damage. Secondly, it is easy to block the ventilation hole when filled with spilled oil. Once the vent hole is blocked, negative pressure will be generated in the fuel tank, resulting in poor or even no oil supply. It may be that the engine won't catch fire just after the car is filled with oil, or it may be that the fuel tank is too full, which leads to jumping up and down at high speed. In addition, being filled with spilled oil will cause damage to automobile parts. Too much gasoline will inevitably increase the overall weight of the car and increase fuel consumption. In addition, if it is too full, it is easy to cause gasoline liquid to enter the pipeline, which will not only damage the carbon canister, but also flow into the airway along the pipeline, which will make the spark plug fail and even cause the vehicle to fail to start.