How hot is a car engine when it is working and why is it cooled down?

The duty cycle of the engine is carried out at high temperatures, and the maximum temperature of combustible mixture combustion can reach more than 2000 degrees Celsius. When the engine is working, the pistons, cylinders, cylinder heads and valves and other parts that are directly in contact with the high-temperature combustible mixture will be strongly heated, which will lead to the engine operating temperature is too high (overheating), thereby causing the inflation coefficient to decrease and abnormal combustion (detonation or premature ignition), which will not only cause gasoline lubricating oil to burn or deteriorate, cause the lubrication capacity to decrease, make the parts wear sharply, and even appear stuck, damaged and other phenomena.

In order to avoid the above-mentioned serious consequences, make the engine exert the maximum power, and have high economy, power, durability and reliability, it is necessary to adopt a reasonable cooling method to keep the engine working within a certain temperature range, and only in this way can the engine be guaranteed to run normally for a long time.

However, excessive cooling of the engine will make the cylinder temperature too low, the degree of atomization of the combustible mixture will be worse, the combustion will be insufficient, and the fuel consumption will be increased; At the same time, it will also lead to an increase in the viscosity of gasoline engine lubricating oil, which will accelerate the wear of parts. Excessive engine cooling means that too much heat is taken away by the cooling medium, which will lead to a decrease in the heat of the effective work, resulting in a decrease in the power of the engine.

Theoretical calculations and long-term practice have proved that the water temperature of the outlet water of the tank should be kept in the range of 75 85 (the temperature of the water thermometer should be kept between 80 and 90), and the temperature of the space under the hood should be kept in the range of 30 40.

The calorific value is equivalent to a three-kilowatt electric stove,,, imagine that if you are walking on the highway, the cylinders of the car generate the same calorific heat as four rice cookers,,, and there is no way for the fan to blow the air directly, so you can only circulate the water and earth heater to take away the heat.

Do you want it there?

The engine exhaust outlet temperature can reach more than 800 degrees, and the instantaneous maximum temperature inside the combustion chamber can reach 4000 degrees Celsius.

The surface temperature of the engine chamber is 60The temperature outside the engine cylinder --- left and right, and the constant temperature of the water tank is 93---98, and the maximum temperature is around 100 degrees.

Sometimes the temperature of the oil will be much higher, which is an abnormal phenomenon. Consequences of ultra-high oil temperature: (1) The oil temperature is too high, which reduces the viscosity of the oil, makes it difficult to establish the oil film, and the oil pressure drops, resulting in the acceleration of the wear of the moving pair.

2) Engine oil often works at higher temperatures, which will accelerate the aging of engine oil. (3) The rubber sealing ring of the oil system is easy to age and fail at high temperature, resulting in oil leakage.

Very high. 80 degrees. There is something that absorbs heat and sucks all of its temperature away.

After the car has been used for a year or driven for 3-50,000 kilometers (this time and model, the driver has a lot to do with it, please judge according to your actual situation), there will be such a feeling, that is, the power of the engine is not as strong as when the new car, the fuel consumption also increases, the noise of the engine increases and the exhaust emissions are also very different from the new car. In this case, the engine needs to be cleaned.

Precautions: After the fuel enters the combustion chamber and burns together with gasoline, it will produce gum to form hard carbon deposits in the intake valves, piston tops, piston ring grooves, combustion chambers, spark plugs and other parts, and at the same time, when the engine is working, the fuel and the lubricating oil that enters the combustion chamber will not be completely burned, and the unburned oil will also form gum by high temperature and oxidation, which adheres to the surface of the parts, and then forms carbon deposits through high temperature.

At the end of piston compression, the temperature in the cylinder reaches 300-500, and the gasoline is ignited after the injection of the cylinder, and the temperature in the cylinder rises sharply, and the instantaneous temperature can reach 1500-1800, which should be the maximum temperature of the cylinder. Usually we talk about engine temperature refers to the cooling water temperature of the engine cylinder head, which is about 90.

The melting point of aluminum is about 650, the piston is an aluminum alloy with other materials, the melting point is above 700, and the thermal conductivity of aluminum is very good, it will quickly transfer heat to the cooling system (water, oil), so it can remain undeformed.

When the automobile engine is working, due to the friction between the moving parts and fuel combustion of various parts, a large amount of heat is generated, although there is coolant and air in the cylinder for cooling, a lot of heat is exported, and the lubricating oil also takes away a part of the heat, but the parts of the engine still have a very high temperature, at the same time, due to the different working conditions of each part, the structure is different, the temperature of the main parts is also different, and the temperature of the main parts is generally as follows: The upper part of the cylinder wall is 120-370 degrees Celsius, and the lower part of the cylinder wall is less than 150 degrees. The top of the piston is 210-425 degrees, the upper part of the piston is 105-315 degrees, the piston skirt is 95-205 degrees, and the combustion chamber is the highest, 2000-2500 degrees.

The temperature in the combustion chamber of the engine can reach 1800-2200, and the surrounding metal components will absorb this heat, and then bring the heat to the intersection of the circulation system with the cooling system through the circulation system of the engine oil (note that only the respective circulation system is in contact, the two liquids are separated) for cooling, and the temperature is never lowered. Under normal circumstances, the temperature of the coolant will stabilize in the range of about 90 degrees Celsius.

Of course, there is a water cooling system, and the water circulates to dissipate heat.

Hello, the temperature of the combustion chamber inside the engine can reach several hundred degrees Celsius when the vehicle is driving normally. The temperature of the cylinder. After heat dissipation through the heat dissipation system, it also has tens of degrees Celsius.

The temperature in the combustion chamber of the engine can reach 1800-2200, and the surrounding metal components will absorb this heat, and then carry the heat to the circulation system with the cooling system through the oil circulation system.

Generally, the naturally aspirated engine runs more than 100 kilometers at high speed, and at speed, the engine temperature is about 1,000, and the turbocharged temperature is even higher, so many cars will listen to it again after running at high speed, and then listen to it after a while.

Yes, such temperatures are generally in the range of 300 to 500.

If the cooling water in the cooling system is insufficient, it is difficult for the engine to cool down, which will lead to the high temperature of the engine and affect the engine performance. Car air conditioning and refrigeration will also be greatly reduced.

If the radiator of the car is blocked, the engine temperature will be particularly high, which will cause traffic accidents. In such a situation, you must ask for maintenance in time.

Relationship with the radiator of the car. If the radiator of the car is not clear or the branches are dull or the shirt is deformed, it will cause the temperature of the engine to be too high. In such a situation, the radiator must be replaced in time to avoid damage to the car.

There is a serious impact, the temperature of the engine is likely to affect the cooling system, the temperature is relatively high, the lead excavation will affect the normal start of the cold imitation destruction system, will affect the value of use, will affect the normal braking of the vehicle.

Engine water temperatures are typically between 80 and 90 degrees Celsius. Once this temperature is exceeded, that is, when the water temperature meter crosses the red line, it is necessary to check the fault. So, what happens if the engine water temperature is too high and what to do about it?

Leaking cooling systems, insufficient coolant, damaged water pumps, broken fan belts, faulty thermostats, and long-term engine overload operation are all causes of high engine water temperatures. If the engine is violent** while driving and the cylinder is broken, it is most likely caused by the engine overheating. When the engine temperature is too high, the engine power and torque will decrease, resulting in insufficient power.

In addition, the piston can over-inflate and the resistance to movement increases, leading to increased wear and tear between the components, or even damage. In severe cases, the parts get burned and jammed on each other, and the engine cannot operate.

When we encounter an alarm that the water temperature is too high, the first step is to slow down and pull over, do not turn off the engine, and hold idling for a while. Because when the water temperature is too high, the machine parts are in a state of expansion, and the soft metal will fall off after the shutdown, which will also cause the cylinder to stick. Therefore, it is advisable to stop the engine until the temperature returns to the red line and do not splash the engine with cold water, otherwise the cylinder body will burst.

After the temperature dropped, we put on gloves, put a damp cloth on the tank lid and unscrew a small gap. After the water vapor is discharged and the pressure in the tank drops, we can replenish cold water or antifreeze. Don't panic when we get stuck while driving.

When you pull over, be sure to turn on the double flash, put on the warning signs, and finally follow the correct steps to deal with the problem.

If the engine temperature is too high, it will lead to a decrease in cylinder inflation, abnormal combustion, a decrease in engine power, and poor fuel rationality. Gasoline engines are prone to premature combustion and deflagration; Engine parts can also accelerate due to poor lubrication, or even affect the jamming or damage of parts. Therefore, the vehicle needs to be warmed up after cooling and the whole vehicle needs to be inspected once if necessary.

Under normal circumstances, the engine operating temperature is too high, which will cause boiling. A sudden increase in pressure in the coolant circulation duct causes the temperature to become higher, creating a vicious cycle. Excessive temperature can cause serious accidents such as pulling cylinders.

The normal working temperature of a car engine is between 85-105 degrees, which refers to the temperature inside the engine. Below 85 degrees, gasoline atomization is not good, lubricating oil fluidity is not good, the engine is easy to wear and tear, poor performance, the engine above 105 degrees is easy to overheat, and the boiler above 110 degrees will boil.

The engine is too high, easy to be knocked by the cylinder punch, too low, high fuel consumption, poor lubrication, and large wear; The car engine is generally at maximum load, that is, the throttle is fully open, and the intake air temperature may be between 0-80 degrees; In the case of a supercharged engine, the intake air temperature will reach 80 degrees in summer. During compression, the temperature always rises to 500 600 degrees; Heat is released to the cylinder wall during compression. After ignition, the local peak temperature rises to 2000 degrees or even higher.

The average temperature of the exhaust gas is around 800 1000 degrees.

If the engine temperature is too high, it will have a great impact on the car, the engine will stall, and if the engine is turned on again, it is possible to scrap it directly. Generally, it leads to engine cylinder rushing, serious oil high temperature, crankshaft locking, camshaft locking, cylinder pulling and other symptoms, the engine is directly scrapped, if there is a problem with the cold car system, the gearbox may also be affected! Therefore, if the engine temperature is really too high, be sure to turn it on again when the water temperature is down, or directly call a tow truck to tow it to the repair shop for maintenance.

It will directly affect the service life of the engine, because if the engine is in a high temperature state all year round, it is likely to cause the engine to retire early.

If the engine operating temperature is too high, it may affect the running speed of the car, and it is also very likely to be dangerous, so try not to let the engine temperature too high.

If the engine temperature is too high, a temperature alarm will be triggered, and in some smart models, it may be forced to reduce the speed to cool down.

Too high an engine operating temperature can affect the power take-off system power and make the precision equipment inside the machine obsolete.

The duty cycle of the engine is carried out at high temperatures, and the maximum temperature of combustible mixture combustion can reach more than 2000 degrees Celsius.

1. When the engine is working, the pistons, cylinders, cylinder heads and valves and other parts that are directly in contact with the high-temperature combustible mixture will be strongly heated, which will lead to the high working temperature of the engine (overheating), which will cause the inflation coefficient to decrease and the combustion is abnormal (detonation or premature ignition), which will not only cause the gasoline lubricating oil to burn or deteriorate, cause the lubrication capacity to decrease, make the parts wear sharply, and even appear stuck, damaged and other phenomena;

2. In order to avoid the above-mentioned serious consequences, make the engine exert the maximum power, and have high economy, power, durability and reliability, a reasonable cooling method must be adopted to keep the engine working within a certain temperature range, and only in this way can the engine run normally for a long time;

3. However, excessive cooling of the engine will make the cylinder temperature too low, the degree of atomization of the combustible mixture will be worse, the combustion will be insufficient, and the fuel consumption will be increased; At the same time, it will also lead to an increase in the viscosity of the lubricating oil of the gasoline gear, which will accelerate the wear of the parts. Excessive cooling of the engine means that too much heat is carried away by the cooling medium, which will lead to a decrease in the heat of the effective work, resulting in a decrease in the power of the engine.

Summary. Glad for your question. The normal operating temperature of a car engine is between 85-105 degrees, which refers to the temperature inside the engine.

Below 85 degrees, the gasoline atomization is not good, the lubricating oil is not fluid, the engine is easy to wear and tear, and the performance is poor, and the engine is easy to overheat above 105 degrees, so the car should be heated after the cool car lands.

Keeping the engine at a normal temperature can better protect the engine!

Car. Under normal circumstances, how many degrees does the engine operating temperature maintain?

Glad for your question. The normal operating temperature of a car engine is between 85-105 degrees, which refers to the temperature inside the engine. Below 85 degrees, the gasoline atomization is not good, the lubricating oil is not fluid, the engine is easy to wear and tear, and the performance is poor, and the engine is easy to overheat above 105 degrees, so the car should be heated after the cool car lands.

The temperature of the enclosure of the air-conditioned car is very high.

When the air conditioner is turned on, it is normal for the temperature of the car shell to be a little higher than usual.

Other people's cars won't, I just bought it yesterday.

Can you measure the approximate temperature? Some cars have higher engine temperatures.