We all encounter such a problem when the car is driving at high speed, and the high speed operation for a long time will cause the temperature of the engine to rise, and it will inevitably generate a lot of heat. Then some car owners have questions: If the engine cannot be cooled down in time, can the car continue to drive? Will the long-term operation have an impact on the car's engine? The common point of these car owners is that they imagine the car as a person, and people will be tired if they continue to exercise, so the car will definitely be "tired" after driving for so long. Actually, this perception is wrong, but why? We're going to answer that question today.
On the highway we often see such a group of people, they open the hood of the car, fan the wind with a fan to try to cool down the car engine, so after a long time of driving, do you need to artificially cool it down? In fact, as long as it is not under extreme conditions, such as in a high temperature environment or overload work, the engine will produce far more heat than normal, then we need to artificially dissipate heat from the engine in time to ensure driving safety.
The principle of heat dissipation in automobiles
First of all, we must first understand how the engine of the car dissipates heat, the engine radiator is the core part of the automobile cooling system, which is composed of three parts: the water outlet chamber, the water inlet chamber and the radiator core. Most of the heat generated by the engine comes from the combustion of gasoline, most of the energy of gasoline combustion is used to drive the car, and some of it becomes heat energy, so the temperature in the cylinder is very high, so in order to solve this problem, the water channel is designed outside the engine, and the coolant is used to achieve the purpose of cooling, the coolant flows in the core to achieve the purpose of cooling, and the natural air can increase the temperature of the engine through the outer chamber, and the hot coolant becomes cold due to air heat dissipation. To put it simply, as soon as the car is started, the refrigeration system will automatically and continuously cool the car.
The car's "external radiator" – the active closing of the grille
In fact, the radiator of the car is not only in the engine cooling system, but also on the surface of the car "radiator", although the efficiency of these radiators is not as high as the engine radiator system, but it can also play a good role in cooling during driving. The grille is located under the hood of the car, which is what we call the "front face of the car", with the development of the automobile industry, the design of the grille is becoming more and more perfect. The motor and the driving controller are composed of automatic adjustment according to the temperature generated by the engine when it is working, so as to achieve the purpose of controlling air intake and heat dissipation, and the active air intake grille can be opened when the engine needs to be cooled because of excessive heat, and it can also reduce wind resistance when it is not needed, so it is also a very useful "radiator".
Driving to check the vehicle's "water temperature gauge"
The temperature of the water thermometer is usually normal at 80-90 degrees Celsius, when the water thermometer pointer is lower than 80, it means that the water temperature is lower than the normal temperature, and the pointer is higher than 90, which means that the water temperature exceeds the normal temperature, which needs to attract our attention. When driving, we should always pay attention to the letters "H" and "C", "H" stands for "hot" and "C" stands for "cold". At this time, pay attention to the pointer of the water temperature meter, which letter is close to the pointer represents whether the temperature is high or low at this time, only the pointer is kept in the middle of 80-90, the engine temperature at this time belongs to the normal range.
How to deal with water temperature that is too high
If you observe that the pointer of the water temperature gauge is almost to "H", park the car in a safe area, do not turn off, as long as the car turns off, the parts inside the engine are easy to be damaged, and you can not turn off the engine until the water temperature drops to the normal range; then open the hood to let the air circulate, and use the natural wind to cool the engine; at this time, after the water temperature drops down, open the radiator and add the water cover, so that the hot air in the cabin will be dissipated faster.
Although the car does not need to be cooled down after driving for a few hours, it is recommended that all car owners take a break in the nearby parking lot or service area after driving for 3-4 hours, do not drive fatigued, and maintain a good mental state and healthy body in order to arrive at the destination safely.
Source: Know the car frontier WeChat public account (ID: c13272923519
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