What is the difference between wet dual clutch and dry dual clutch

The difference between wet dual-clutch and dry dual-clutch is that the internal structure is different, and the wet dual-clutch is more stable.

In the case of wet dual-clutch transmission, it is her shift structure and the like, which are soaked in oil, and she is easier to dissipate heat.

Hello, both are dual-clutch after the total, the performance of the wet dual-clutch is more stable, and the heat dissipation of the dry type is average.

Hello, for the 14 dual-clutch gearbox, the overall heat dissipation effect is poorer, but the stability is better, the dry clutch is used during the heat dissipation, but the performance is not stable enough.

The heat dissipation effect of the wet dual-clutch is better than that of the dry type, and the failure rate is relatively low.

The dry dual-clutch does not dissipate heat well, and it is unstable in the later stage, which is more reliable than the wet dual-clutch.

In comparison, the dry test dual-clutch technology may be slightly less stable, and the wet dual-clutch technology is more mature.

Hello, this one is very different, the dry dual-clutch has been used for several years and found that the performance is unstable, so most of them are now wet dual-clutch.

Hello! One is wet and one is dry.

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.

The differences between dry dual-clutch and wet dual-clutch are:

1. Wet dual clutch disc refers to the clutch disc soaked in the transmission fluid, while the clutch disc of dry dual clutch is in direct contact with the engine flywheel;

2. Technical maturity and reliability of wet dual clutch because the clutch plate works in the hydraulic oil, and the oil plays a certain role in heat dissipation, which is naturally more stable to use;

3. Due to 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 technical maturity of wet dual-clutch transmissions is high.

Dry dual-clutch and wet are fundamentally the same basic transmission principle of the two transmissions, which use two clutches to work in turns. The biggest difference between the two is that the clutch of the wet dual-clutch transmission is installed in a sealed oil chamber filled with hydraulic oil, while the dry dual-clutch transmission has no hydraulic system, and its torque is transmitted through the friction plate of the driven disc.

Because the clutch plate of the wet dual-clutch transmission is soaked in oil, the oil has a certain heat dissipation effect, so the performance is more stable when used. However, it is also relatively more expensive to build, and it is less efficient at transmitting power than dry type. Dry dual-clutch transmissions have poor heat dissipation and are therefore prone to failure due to high temperatures.

There is a big difference between a dry dual clutch and a wet dual clutch.

1.Wet dual-clutch transmission refers to a multi-plate clutch with two sets of dual clutches coaxially installed together, one large and one small, which are installed in a closed oil cavity filled with hydraulic oil, so the wet clutch structure has better adjustment ability and excellent hot melting, and it can transmit relatively large torque;

2.A dry dual-clutch transmission transmits torque through friction plates on the clutch disc. Due to the savings in the associated hydraulic system and the high efficiency of the transmission of torque that the dry clutch itself has.

However, the wet clutch uses more energy than the dry type when shifting gears, so the dry system greatly improves fuel economy. At the same time, a dry dual-clutch transmission is lighter than a wet dual-clutch transmission. This is because the wet dual-clutch variable box must have a hydraulic pump, lubricating fluid, cooling pipes and an external cooling system, while the dry type does not need these accessories.

Dry dual-clutch and wet dual-clutch, these two gearboxes, it must be a wet dual-clutch transmission is better. Because of this wet dual-clutch gearbox. Because his clutch is soaked in the transmission fluid.

Therefore, if he says that he has this gearbox and his clutch, his performance is relatively stable, not easy to slip, and the heat dissipation of this clutch is relatively good, and the wear and tear of the clutch is relatively small. Therefore, this wet dual-clutch gearbox is still a little better, and the practical performance is relatively stable. Dry dual-clutch, mainly because his clutch is constantly shifting at low speed, and the clutch of the gearbox is easy to heat up.

Once the clutch heats up, there will be a large amount of shaking, and the wear is relatively large.

All dual-clutch transmissions can be divided into three parts: dual-clutch, gearbox, and control (spool valve box). The clutch part is divided into dry and wet.

Dry double clutch means that the two clutch plates and the intermediate pressure plate are directly exposed to the air, relying on air flow to dissipate heat, and the combination and disconnection of the clutch are driven by the slide valve box to push the clutch push rod K1 and K2 to hold.

1. The advantages are different: the wet dual-clutch variable box must have a hydraulic pump, lubricating fluid, cooling pipe and external cooling system, while the dry dual-clutch saves the relevant hydraulic system, so in terms of manufacturing cost, lightweight, and space structure optimization, the dry clutch will have more advantages, in addition, because the dry dual-clutch has no hydraulic resistance, the transmission efficiency will be relatively high, and the fuel economy will be better than the wet one.

2. The disadvantages are different: when the dual-clutch gearbox is working, it will rub to generate heat, especially in the stop-and-go section, at this time, it needs to dissipate heat to ensure the normal operation. Since the dry dual-clutch is air heat dissipation, it can only be driven by air cooling, while the wet dual-clutch is soaked in oil, which is obviously more efficient than the dry type of heat dissipation, which is easy to cause the dry type to be easy to break.

3. The connection medium of the driving disc and the driven disc of the clutch is different, the dry double clutch is by air, the wet double clutch is by oil, and the double clutch gearbox will rub to generate heat when working, especially in the section of the turtle speed, the double clutch keeps switching between the first gear and the second gear, and the opening and closing of the clutch generates a lot of heat.

The biggest difference between dry and wet dual-clutch transmissions is that they are cooled in different ways.

Dry dual-clutch transmissions are cooled by air, and wet dual-clutch transmissions are cooled by oil.

The structure of dry dual-clutch transmission and wet dual-clutch transmission is basically the same, the structure is relatively simple, and the straightforward point is that two sets of manual transmission transmissions are combined, and the technical content is not high.

First of all, the transmission efficiency is different: from the structure of the clutch, we can see that the structure of the wet clutch is more complex, and the complex structure means higher energy loss, so the transmission efficiency of the wet dual-clutch gearbox is lower, which takes up more engine power, and under the condition that other factors remain the same, it means that the fuel consumption will be higher.

Response speed: The dry clutch is transmitted through the direct contact of the metal sheet, the power transmission is more direct, the metal plate is compressed, the transmission ratio is increased, and the effect is direct and significant; The wet type should use the oil as the "middleman", from the speed of the driving disc to the increase of the centrifugal force of the oil, and then to the speed of the driven disc, there is an additional set of procedures, so the response speed will be a little slower.

Withstand torque: the metal friction plate of the dry clutch can not withstand too much torque, if it receives too much stress impact, it is easy to cause damage to the friction plate, therefore, the dry clutch can only be used for small displacement and low torque output models, and even, some models in order to adapt to the dry clutch, deliberately output the torque of the engine in low gear, in order to protect the transmission clutch.

There is no such problem at all in wet clutches, as small as a family car with a displacement of 200Nm, as large as a supercar with a displacement of more than 1000Nm, can be competent, and even in many tens of thousands of N m large diesel engines, electric motors, we can see the application of wet clutches.

Hello, is there anything to do?

The difference between dry dual-clutch and wet dual-clutch is: different composition, different hot melting, and different use.

First, the composition is different.

1. Dry double clutch: The dry double clutch is composed of three clutch plates of similar size coaxial stacked and installed.

2. Wet double clutch: Wet double clutch is a double clutch that is coaxially installed together for two groups, one large and one small.

Second, the hot meltability is different.

1. Dry dual-clutch: The hot melt of dry dual-clutch is not as good as that of wet clutch, so the torque it bears is relatively small.

2. Wet dual clutch: Wet dual clutch has excellent hot meltability, and it can transmit relatively large torque.

Third, the use is different.

1. Dry dual-clutch: Dry dual-clutch is generally used with small displacement engines.

2. Wet dual-clutch: Wet dual-clutch is generally used with large-displacement engines.

The main difference between these two transmissions is "dry" and "wet". The clutch plates in the dry dual clutch are dissipated through the air in the gearbox, while the wet dual clutch plates are submerged in oil. Obviously, a dry dual-clutch transmission dissipates heat less efficiently than a wet dual-clutch transmission.

Therefore, in urban driving, when driving at low speeds, the dry dual clutch disc is prone to overheating, resulting in a decrease in the service life of the dual clutch disc and an increase in the failure rate, while the wet dual clutch transmission performs better. Dual clutches are divided into dry dual clutches and wet dual clutches.

Their structure is the same, and so is the principle of displacement. The difference is in the clutch's heat dissipation mode. When the clutch plates of the dry dual clutch are combined, the clutch plates are combined with air cooling, and the heat dissipation of the dry dual clutch depends on the air flow after the vehicle is driven.

As a result, there are some heat dissipation holes around the clutch. When traffic is congested, vehicles frequently start, upshift, and downshift. Due to the lack of effective heat dissipation of the clutch, it is easy to cause the clutch plate to overheat, and then alarm, shortening the service life of the clutch plate.

The biggest disadvantage of the dry dual clutch is the low wading depth. Since the dry dual clutch relies on air cooling to dissipate heat, there will be heat dissipation holes around the clutch plate, and water will enter the clutch device, which is easy to cause the clutch to rust and shorten the service life. However, the advantages of a dry dual-clutch transmission are still clear.

Dry dual-clutch transmissions have much higher shift efficiency, shift speed, and powertrain efficiency than wet dual-clutch transmissions. An example of this is the Volkswagen DSG dry dual-clutch transmission, which is no less efficient at the power connection than the MT transmission.

The wet dual clutch relies on oil to dissipate heat. We rubbed our hands back and forth in the basin, and our hands didn't feel the heat. This is the principle of the wet dual clutch.

The addition of gearbox oil to the sealed clutch unit, supplemented by a radiator, does not shorten the service life of the clutch due to dry grinding of the clutch plates. However, in terms of cost, a dry dual clutch is much cheaper than a wet dual clutch, and a dry dual clutch gearbox is much simpler in construction than a wet dual clutch gearbox. Therefore, many dual-clutch transmissions produced and developed by independent brands are basically dry dual-clutch transmissions.

The biggest fear of dry dual clutch is congestion and wading, traffic jam is no longer the preserve of big cities, so we definitely don't recommend buying a dry dual clutch, while a wet dual clutch should be more stable. From the point of view of vehicle complaints, any dual-clutch transmission is not immune to gear shift tripping, abnormal noise, and shaking, but the degree of failure varies.

1. Transmission efficiency: The transmission efficiency of wet dual-clutch gearbox is lower. 2. Response speed:

The dry clutch is transmitted by direct contact with the metal sheet, while the wet clutch is mainly oiled as an "intermediary". 3. Withstand torque: The dry clutch can only be used for models with small displacement and low torque output.

The biggest difference in the first point is that the gear of the clutch between them is different, and there are also a lot of speed problems between the clutches in the second point, and the life of the third point is completely different, which is the difference.

The mechanical structure of the two is the same, the only difference is that the wet dual clutch is soaked with transmission oil, so that it is not easy to burn the friction plate.

The distance between the dry clutch and wet clutch transmissions is almost the same, but the main difference is that the clutch drive disc and the driven disc are connected to the different media. To put it bluntly, the working environment of the clutch plate is different. The clutch plates of the wet dual clutch are soaked in the transmission oil, relying on the oil; The clutch plates of a dry clutch are in direct contact with the engine flywheel and are dependent on air.

The wet dual clutch has a certain heat dissipation effect due to the clutch disc working in the hydraulic oil, which is more stable to use; And because it is immersed in oil, it works by friction in a humid environment. The advantage of a wet dual-clutch is that it has a long service life and generally does not fail. The disadvantage is that the wet dual clutch has a complex structure, high manufacturing cost, and lower power transmission efficiency than the dry clutch.

Dry clutches have no oil cooling and are not as efficient at dissipating heat as wet dual clutches. So it's easier to break. Especially in traffic jams, the gearbox often has to switch between first and second gear, which is very worn.

The differences between dry clutches and wet clutches are as follows:1. The transmission principle of dry clutch and wet clutch is basically similar, basically both clutches work in turns.

However, the connection medium of the clutch drive disc and the driven disc is different. The dry dual-clutch relies on air, and the wet dual-clutch relies on oil. 2.

Power shifts generate heat due to friction during operation, especially on sections of the road at turtle speed. The dual clutch constantly switches between first and second gear, and the opening and closing of the clutch generates a lot of heat. The dry dual-clutch is air-cooled and air-cooled, so the heat dissipation efficiency is not as high as that of the wet dual-clutch.

Just like our freshly boiled eggs, blowing them with an electric fan is not as fast as putting them in water. 3.Of course, the poor heat dissipation of the dry dual-clutch is the reason why it is more likely to break.

Of course, in terms of durability, the wet dual-clutch is less prone to breakage and more durable than the dry dual-clutch.