Classification of automotive clutches
Automobile clutch has friction clutch, hydraulic torque converter (hydraulic coupling), electromagnetic clutch and so on. Friction clutch is divided into wet type and dry type two.
The hydraulic coupling relies on the working fluid (oil) to transfer torque, and the shell is connected with the pump wheel as one, which is an active part; The turbine is a follower relative to the pump wheel. When the speed of the pump wheel is low, the turbine can not be driven, and the active part and the follower are separated. With the increase of the speed of the pump wheel, the turbine is driven, and the active part and the slave part are engaged.
The electromagnetic clutch depends on the coil to control the clutch engagement and separation. If the magnetic powder is placed between the active and the follower, the bonding force between the two can be strengthened, such a clutch is called the magnetic powder electromagnetic clutch.
At present, the vast majority of clutches matched with manual transmission are dry friction clutches, which are divided into single-disk, double-disk and multi-disk types according to the number of driven disks.
The wet friction clutch is generally multi-disc and immersed in oil to facilitate heat dissipation. The clutch with a number of helical springs as the compression spring, and the clutch with these springs distributed along the circumference of the pressure disc is called the circular spring clutch (as shown in the figure). A clutch using a diaphragm spring as a compression spring is called a diaphragm spring clutch.
