Flywheel clutch is located in between the engine and the gearbox, clutch assembly fixed on the flywheel after the plane with a screw, the input shaft clutch gearbox output shaft is the. In the process of moving vehicle, the driver may according to need to pedal or release the clutch pedal, so that the engine and gearbox temporary separation and progressive joint, to cut off the engine or transmission to the transmission input power.

The main function of the clutch:

1 to ensure that the car a smooth start

Before starting the car in a static state, if the engine and gearbox is rigid connection, once thegear, the car will then suddenly due to a sudden power forward, not only will causemechanical damage, and the driving force is not enough to overcome the car before the greatinertia, the engine speed sharp decline and extinction. If at the beginning of the clutch isseparated and the engine and gearbox, clutch engagement gradually, because of the existence of the phenomenon of sliding friction between the driving part and the driven part ofthe clutch, the clutch torque from zero to increase gradually, and the driving force of the automobile is increasing gradually, so that the car a smooth start.

2 easy to shift

In the process of driving, often used for the transmission of different stalls, to adapt to changing traffic conditions. If there is no clutch to the engine and gearbox temporary separation, then the force transmission gear in the gearbox due to load is not removable, thecontact pressure between the tooth surface and difficult to separate. The other one to two circular gear because of the speed range and difficult to engage. Even if forced into the engagement will have a huge impact on tooth side, easily damaged parts. The engine andgearbox shift after the temporary separation clutch, the original pair of meshing gears due to load drop, the pressure between the mating surfaces is greatly reduced, it is easy toseparate. Another pair of gear to mesh, separated by the driving gear and the engine rotational inertia is small, so that the gears meshing circumferential speed to be equal or nearly equalthe right shift operation, so as to avoid or reduce the impact between gear.

3 prevent transmission overload

Automobile emergency brake, the sudden deceleration, and is connected with the enginetransmission system due to the rotation inertia, still maintain the original speed, this will often have far more than the moment of inertia of the engine torque in drive system, the drive traincomponents easy to damage. Because the clutch is to transmit torque by friction torquetransmission, so when the load is larger than the friction force transmission, clutch, driven part will automatically slip, so as to prevent the transmission of the overload effect.