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List of contents of this article:

• 1,Binance Download for PC Small cycle and large cycle difference
• 2, What is the working principle of the large and small cycle of the engine engine cooling system?
• 3, Briefly describe the path of the size cycle of the engine cooling system
• 4, What does the small cycle of the engine mean?
• 5, The working principle of large cycle and small cycle in the engine cooling system
• 6, Detail the engine cooling system, what is the large and small cycle

The difference between small cycle and large cycle

The heat dissipation method is different: the large cycle needs to be cooled by the cooling tank; the small cycle does not need to dissipate heat through the heat sink. When the engine is first started, the coolant will circulate in a small area, which helps the engine quickly reach the normal operating temperature.When the normal operating temperature is reached, the coolant will circulate to keep the engine within a reasonable operating temperature range.

Biological small cycles usually take place in a shorter period of time, such as seasonal changes or between several years. Great geological cycle: It usually takes a long time range, such as thousands of years, millions of years or longer. Circulation space Biological small circulation mainly occurs in the plant body and the surrounding soil-plant system.

Large circulation is the circulation of water in the water tank and water in the engine. Small cycle is that the water in the engine circulates through the pump, and the water in the tank does not circulate. Large circulation: water pump → water pipe → cylinder body water sleeve → cylinder head water sleeve → thermoster → radiator inlet hose → radiator → radiator outlet hose → water pump.

What is the working principle of the large and small cycle of the engine cooling system?

The main function of the engine cooling system is to dissipate part of the heat of the heated parts and ensure that the engine works within the most appropriate temperature range. At present, most water cooling systems are forced circulation water cooling systems, which force water to circulate in the cooling system through pumps. The principle of the cooling system is actually not complicated.

The small circulation of the cooling system is the circulating flow of water without passing through the radiator when the water temperature is low, so that the water temperature rises. As shown below: The large circulation of the cooling system is the circulation flow of water through the radiator when the water temperature is high. As shown below: Control of large and small cycles: a thermoster is usually used to control the flow of cooling water through the radiator.

Small cycle: when the coolant temperatureBelow 80℃, the paraffin wax becomes a solid state, the spring presses the valve on the seat, the valve closes, and the coolant flows into the air conditioner radiator inlet pipe from the side opening without flowing into the radiator, that is, a small circulation is carried out, and the cooling intensity of the cooling system is small.

The thermoster is installed in the channel of cooling water circulation, and automatically changes the circulation route of water according to the engine load and water temperature, so as to adjust the cooling intensity of the cooling system. While ensuring the normal operating temperature of the engine, the thermostat can also realize the automatic switching between small and large cycles.

The working principle of the automobile cooling system is as follows: the adjustment of the cooling water volume: the adjustment of the cooling water volume is automatically controlled by the opening and closing of the main valve and bypass valve of the thermoster.

Briefly describe the path of the small cycle of the engine cooling system

The flow path of the large cycle coolant of the engine cooling system: the flow path of the small circulation coolant is the inlet pipe of the coolant flowing into the empty radiator from the bypass, not into the radiator; the flow path of the large circulation coolant is The coolant can enter the radiator along the radiator inlet pipe for large circulation.

The path of the large and small cycle of the engine cooling system: small cycle: when the coolant temperature is below 80℃, the paraffin becomes solid, the spring presses the valve on the seat, the valve is closed, and the coolant flows into the inlet pipe of the air conditioner radiator from the bypass port without flowing into the radiator, that is, a small cycle is carried out, and the cooling system is strong. The degree is small.

Large circulation: water pump → front end of the cylinder block → water sleeve → cylinder head → rear outlet of the cylinder head → return water pipe → cooling water tank → thermoster (large circulation port) → water pump.Size cycle control of the cooling system: a thermost is usually used to control the flow of cooling water through the radiator.

What does the small cycle of the engine mean?

The small circulation of the cooling system is the circulating flow of water without passing through the radiator when the water temperature is low, so that the water temperature rises. As shown below: The large circulation of the cooling system is the circulation flow of water through the radiator when the water temperature is high. As shown below: Control of large and small cycles: a thermoster is usually used to control the flow of cooling water through the radiator.

[Pacific Automobile Network] Small cycle means that the engine coolant does not circulate through the water tank, but only completes the alternation of cold and hot in the cylinder head pipeline through the storage kettle. The large cycle is that the temperature of cooling water is higher than 80 degrees Celsius.At that time, the main valve of the thermosulator is fully open, the side valve is fully closed, and all the cooling water flows into the radiator, and the cooling intensity is high.

The small cycle of the engine cooling system is that the coolant is only circulated in the waterway inside the engine, and the large cycle is that the coolant cycle passes through the radiator outside the engine, that is, the water tank. The switching of the two cycle modes is done through the thermosulator. When the thermostor is turned off, a small cycle is carried out, and vice versa, a large cycle is carried out.

The path of the large and small cycle of the engine cooling system: small cycle: when the coolant temperature is below 80℃, the paraffin becomes solid, the spring presses the valve on the seat, the valve is closed, and the coolant flows into the inlet pipe of the air conditioner radiator from the bypass port without flowing into the radiator, that is, a small cycle is carried out, and the cooling system is strong. The degree is small.

Large cycle and small cycle refer to the two working modes of the engine cooling system.As shown in the figure below, the small cycle is that the coolant only circulates in the waterway inside the engine, and the large cycle is the coolant that passes through the radiator outside the engine during the circulation process, which is commonly known as the water tank.

Engine cooling system large cycle and small cycle working principleReason

The function and principle of the engine cooling system The function of the engine cooling system is mainly to dissipate part of the heat of the heated parts and ensure that the engine works within the most appropriate temperature range. At present, most water cooling systems are forced circulation water cooling systems, which force water to circulate in the cooling system through pumps. The principle of the cooling system is actually not complicated.

The small cycle of the engine cooling system is that the coolant is only circulated in the waterway inside the engine, and the large cycle is that the coolant cycle passes through the radiator outside the engine, that is, the water tank. The switching of the two cycle modes is done through the thermosulator. When the thermostor is turned off, a small cycle is carried out, and vice versa, a large cycle is carried out.

The small circulation of the cooling system is the circulating flow of water without passing through the radiator when the water temperature is low, so that the water temperature rises.As shown below: The large circulation of the cooling system is the circulation flow of water through the radiator when the water temperature is high. As shown below: Control of large and small cycles: a thermoster is usually used to control the flow of cooling water through the radiator.

The thermoster is installed in the channel of cooling water circulation, and automatically changes the circulation route of water according to the engine load and water temperature, so as to adjust the cooling intensity of the cooling system. While ensuring the normal operating temperature of the engine, the thermostat can also realize the automatic switching between small and large cycles.

Detail the engine cooling system, what is the size cycle

[Pacific Automobile Network] The small cycle means that the engine coolant does not circulate through the water tank, but only completes the cooling and heating in the cylinder head pipeline through the storage kettle. Alternate.The large cycle is when the temperature of the cooling water is higher than 80 degrees Celsius, the main valve of the thermosulator is fully open, the side valve is fully closed, and all the cooling water flows into the radiator, and the cooling intensity is large.

The small cycle of the engine cooling system is that the coolant is only circulated in the waterway inside the engine, and the large cycle is that the coolant cycle passes through the radiator outside the engine, that is, the water tank. The switching of the two cycle modes is done through the thermosulator. When the thermostor is turned off, a small cycle is carried out, and vice versa, a large cycle is carried out.

The large circulation of the cooling system is the circulation flow of water through the radiator when the water temperature is high. As shown below: Control of large and small cycles: a thermoster is usually used to control the flow of cooling water through the radiator.

And when the engine temperature reaches a certain value, the main valve will be opened, and the coolant will pass through the radiator. At this time, the flow rate is large and the line is long, so it is called a large cycle. This great advantage can achieve precise control of the engine temperature, and it is also the reason why the air cooling system is completely eliminated.

The following is the meaning of the large cycle and small cycle of the cooling system: when the temperature of the cooling water is higher than 86 degrees, the main valve of the thermosulator is fully open, the side valve is fully closed, and the cooling water is all flowing into the radiator; at this time, the cooling intensity is high, which promotes the water temperature to drop without being too high.

Its main function is to ensure that the engine cools moderately in any working state and works at the appropriate temperature (coolant temperature). In order to prevent the engine from overheating or overcooling, the cooling system size cycle usually uses a thermostat to control the flow of cooling water through the radiator.