What is the Difference Between Dry and Wet Clutches?
1 Answers
The differences between dry dual-clutch and wet dual-clutch transmissions are as follows: 1. Different transmission efficiency: From the structure of the clutch, it can be seen that the wet clutch has a more complex structure. A more complex structure means higher energy loss, so the transmission efficiency of the wet dual-clutch transmission is lower, occupying more engine power. With other factors unchanged, this also means higher fuel consumption. 2. Different response speeds: The dry clutch transmits power through direct contact of metal plates, making power transmission more direct. When the metal plates are pressed tightly, the transmission ratio increases, resulting in a direct and significant effect. In contrast, the wet clutch uses oil as an "intermediary," requiring a process from the drive plate accelerating to the oil's centrifugal force increasing, and then to the driven plate accelerating. This additional step means the response speed is slightly slower. 3. Different torque capacities: The metal friction plates of the dry clutch cannot withstand too much torque. If subjected to excessive stress impact, it can easily lead to damage of the friction plates. Therefore, dry clutches can only be used in models with small displacement and low torque output. Some models even deliberately limit the engine's torque output in lower gears to adapt to the dry clutch, aiming to protect the transmission clutch.
