Traditional Culture Encyclopedia - The 24 Solar Terms - How to check and maintain the automobile cooling system?
How to check and maintain the automobile cooling system?
Inspection and Maintenance of Automobile Cooling System
Although the gasoline engine has been widely improved, its efficiency is still not high in the process of converting chemical energy into mechanical energy. Most of the energy in gasoline (about 70%) is converted into heat, and it is the task of automobile cooling system to dissipate this heat. In fact, the cooling system of cars driving on the highway will lose enough heat to heat two ordinary houses! If the engine gets cold, it will accelerate the wear of parts, reduce the efficiency of the engine and emit more pollutants.
Therefore, another important function of the cooling system is to heat the engine as soon as possible to keep it at a constant temperature. Fuel continues to burn in the car engine. Most of the heat generated in the combustion process is discharged from the exhaust system, but some heat remains in the engine, which will increase its temperature. When the antifreeze temperature is about 93℃, the engine reaches the best running state. At this temperature, the temperature of the combustion chamber is enough to completely evaporate the fuel, so that the fuel can burn better and the gas emission can be shortened. If the lubricating oil used to lubricate the engine is thinner and has lower viscosity, the engine parts can rotate more flexibly, the energy consumed by the engine in the process of rotating around its own parts will be shortened, and the metal parts will not be easily worn.
How to detect and maintain automobile cooling system: function
The key work of the cooling system is to dissipate heat into the air to prevent the engine from overheating, but the cooling system has other important functions. The engine in the car works best at moderate high temperature. If the engine gets cold, it will accelerate the wear of parts, reduce the efficiency of the engine and emit more pollutants. Therefore, another important function of the cooling system is to heat the engine as soon as possible to keep it at a constant temperature.
Another important function of the cooling system is to heat the engine as soon as possible to keep it at a constant temperature. Fuel continues to burn in the car engine. Most of the heat generated in the combustion process is discharged from the exhaust system, but some heat remains in the engine, which will increase its temperature. When the antifreeze temperature is about 93℃, the engine reaches the best running state.
How to detect and maintain the automobile cooling system: maintenance
1. Use of cooling water: River water with low hardness, such as well water, should be boiled and softened before use, and it is best to use cooling liquid.
2. Pay attention to the technical conditions of various departments: the radiator should be repaired if it leaks; If the water pump and fan swing or make noise, please repair them immediately. If the engine is found to be overheated, immediately check whether there is water shortage. If there is water shortage, turn off the engine. After cooling, add enough cooling water. If the thermostat is not working properly, and the working temperature of the engine is too high or too low, it should be repaired or replaced immediately.
3. Detection and adjustment of the tightness of the fan belt: The tightness of the fan belt is too small, which not only affects the cooling air volume and increases the engine workload, but also accelerates the belt wear due to slippage. If the belt is too tight, it will accelerate the wear of water pump bearing and generator bearing. Therefore, the belt tightness should be tested in use and adjusted if necessary. If it does not meet the requirements, it can be adjusted by changing the positions of the generator and the adjusting arm.
4. Clean the scale regularly: After the engine is used for a necessary period of time, the scale will deposit in the water tank and radiator, which will affect the heat dissipation. So clean it regularly. The cleaning method is to add enough cleaning liquid into the cooling system, soak it for a period of time, start the engine to rotate at low speed for a necessary time, then discharge the cleaning liquid while it is hot, and then rinse it with clean water.
This concludes today's introduction of automobile series. The above is a brief introduction to how to detect and maintain the automobile cooling system. When maintaining the car in winter, we must not neglect the maintenance of the car cooling system, and add car coolant to the water tank, which is of high quality. Because good automobile coolant can not only avoid freezing, but also avoid rust and scaling, inhibit foam, eliminate air resistance, inhibit pitting and cavitation of aluminum parts, and ensure the normal work of water pumps. I hope Bian Xiao's car is simpler.
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