One minute to walk you through the difference between dry dual clutch and wet dual clutch

Owners with dual-clutch gearboxes have a deep understanding of the advantages of fast shifting, no frustration, and fuel economy. But there are also two types of dual-clutch transmissions, dry and wet, and what is the difference between them?

<> wet dual clutch refers to the double clutch is a large and a small two groups of multi-plate clutches coaxially installed together, they are installed in a closed oil cavity filled with hydraulic oil, so the wet clutch structure has better adjustment ability and excellent hot melting, it can transmit relatively large torque. This technology is stable and mature, allowing for fast, smooth, and seamless gear shifting, while also preventing overheating at low speeds thanks to the help of fluid to dissipate heat. However, the disadvantage is naturally because the wet dual-clutch structure is complex, the volume and weight are relatively large, the manufacturing cost is higher than that of the dry dual-clutch, and the maintenance is relatively time-consuming and laborious, and the coolant needs to be replaced regularly.

Dry dual clutch refers to the transmission of torque through the friction plate on the clutch disc disc, due to the saving of the relevant hydraulic system, and the dry clutch itself has the high efficiency of torque transmission. Wet clutches use more energy than dry clutches when shifting gears, so the dry system maximizes fuel economy. At the same time, a dry dual-clutch transmission is lighter than a wet dual-clutch transmission.

The disadvantage is that the dry dual-clutch has a relatively inferior heat dissipation capacity and can withstand less torque. However, because of the low manufacturing cost, the cost of future maintenance is also relatively low, and it is generally used in affordable models. Do you understand?

With the development of the economy, more and more people choose to buy a car, and now the choice of vehicles is also 10 points wide, basically based on automatic transmission, automatic transmission in daily driving, it is indeed more convenient and easy than manual transmission. There are also automatic transmissions and manual transmissions, each with its own strengths, and today I will tell you about the difference between the dual dry dual clutch and the wet dual clutch.

1. Fuel consumption.

When the wet dual-clutch gearbox is working, the power loss of the buried part is the resistance of the cooling oil and dry, and the power consumption of the dual-clutch will not exist in this regard, so the dry dual-clutch is more fuel-efficient. Studies have shown that the transmission efficiency of the dry dual-clutch transmission can reach 91%, while the transmission efficiency of the wet dual-clutch transmission can only reach 85%, and the transmission efficiency will affect the amount of fuel consumption of the vehicle, so the transmission efficiency of the dry dual-clutch transmission is higher, and its fuel consumption is lower.

Second, the service life.

Try the clutch plate of the double clutch is soaked in the oil environment of honey, and the heat generated when the clutch plate is taken away by the oil to ensure the stability of the clutch work, while the dry double clutch can only be heat exchanged between the air and the outside air, that is, the heat dissipation is absent by itself, and the double wet double clutch has the role of transportation in the transmission, which can reduce the wear degree of the friction plate, so that the friction plate belongs to the mixed friction stage, so the wet clutch is more durable and has a longer life than the dry clutch. Studies have shown that the life of the wet dual-clutch system is 5 to 6 times that of the dry dual-clutch system, so the dry dual-clutch and wet dual-clutch have more advantages in terms of durability and fuel consumption.

From the point of view of fuel consumption and service life, the performance of dry dual-clutch is higher, but if the gearbox of the car is flooded, the wet dual-clutch is better, because the transmission body of the wet dual-clutch is sealed, which can isolate the penetration of water and dust from the outside world, so if you buy a car that interferes with the dual-clutch, you should be careful not to take the waterway.

I prefer to be a double clutch base mu, because this kind of clutch slag combination is more convenient to operate, and it will be simpler to fight the key forest, and it will also have more benefits, and there will be a certain difference in essence.

The fuel consumption is different, the service life is different, the power is different, and the mode is different; I prefer the dry dual-clutch transmission, which is sleepy because the fuel consumption is relatively low, the power is relatively strong, the cost performance is relatively high, and the service life is relatively long.

The transmission efficiency of the dry dual-clutch transmission reaches 91%, while the transmission efficiency of the wet dual-clutch transmission is only 85%, and the gap between the two transmissions is still quite large from these two data. However, these two gearboxes have their own strengths, the dry dual-clutch gearbox is characterized by more fuel-efficient, and there is no frustration when the gear is in gear, while the wet dual-clutch gearbox is not as fuel-efficient as the dry dual-clutch gearbox, but the only advantage is that this gearbox is simple to manufacture and the process is not complicated, so the failure rate is much lower. <>

Both transmissions are basically the same as the principle of rotation of both dry and wet transmissions, both transmissions have two clutches working in turns, the so-called dry dual clutch relies on air to change gears, and wet dual clutch transmissions rely on hydraulic power to change gears. When the dual-clutch gearbox is working, it will produce a lot of heat, especially in the process of driving at turtle speed, a lot of heat will be generated inside the gearbox, which will scorch the clutch plate, so many car owners are reflected in the low-speed driving, and the car will produce a great burnt smell, which is actually the reason for the overheating inside the dual-clutch gearbox. <>

Therefore, whether it is a dry dual-clutch or a wet dual-clutch car, they are not suitable for turtle speed, because turtle speed driving can easily cause damage to this kind of transmission, and the maintenance cost is extremely high. Therefore, many car manufacturers on the market do not use this dual-clutch transmission, because this transmission is more prone to damage than other AT transmissions. <>

In general, the dry dual-clutch transmission has poor heat dissipation, while the situation of the wet dual-clutch transmission is a little better, from the durability of the gearbox, the wet dual-clutch transmission is less likely to break, but whether it is a dry dual-clutch transmission or a wet dual-clutch transmission, it is not as good as other transmissions, because the manufacturing process of the dual-clutch transmission is very complex, and the maintenance cost is extremely high, so I recommend that you do not choose a car with a dual-clutch transmission when buying a car.

I think the difference is big, the wet clutch has a much lower failure rate than the dry one because it is lubricated by transmission oil.

The transmission medium is different, generally the wet and dry clutches are transmitted by air, and then the wet double clutch uses oil.

The gearbox is not installed in the same way. The sealing process is different, the hydraulic system is different, the torque is different, and the gearbox is not the same speed.

Dry dual-clutch and wet dual-clutch have similarities and differences, of course, it does not mean that who is better than the other, each has its own advantages and disadvantages.

Dual-clutch transmissions are divided into dry dual-clutch transmissions and wet dual-clutch transmissions. The principle of both dry and wet transmission is basically the same, with two clutches working in turns.

However, the connecting medium of the driving disc and the driven disc of the clutch is different, and the dry dual clutch relies on air. The clutch discs of the dry dual clutch are in direct contact with the engine flywheel. Because of poor heat dissipation, dry dual clutch is prone to the risk of high temperature or even ablation of clutch plates in congested urban areas.

At this level, the wet dual-clutch transmission technology is more mature.

The wet dual-clutch is fluid-dependent. Wet dual clutch disc, refers to the clutch disc soaked in the transmission oil, from the technical maturity and reliability, wet double clutch because the clutch disc works in the hydraulic oil, the oil plays a certain heat dissipation effect, so the use of more stable. The wet dual-clutch structure is complex, the manufacturing cost is high, and its power transmission efficiency is not as high as that of the dry type.