Clutch is a mechanical device that engages and disengages the power transmission which is developed by the engine. Multi plate clutch is the most common type of clutch used in light vehicles. Basically it is a ‘wet type friction clutch’ plate. It consists of a more number of clutch whose both sides are faced with a frictional material, and its mounted on the clutch shaft, and the flywheel is mounted on the engine crankshaft.
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Multi plate clutch consists of a number of clutch plates, this clutch works same as the single plate clutch.The pressure plate is bolted to the flywheel through the clutch springs which are arranged radially inside the body. Clutch springs pushes the clutch plate towards the flywheel. When the clutch is engaged, the clutch plate is gripped between the flywheel and the pressure plate. Due to the friction linings on both sides of the clutch plate, the clutch plate is revolves with the flywheel.
Clutch shaft is connected to the gearbox. Thus, the engine power is transmitted to the driving wheels.When the clutch pedal is pressed by the driver, the clutch is said to be in disengaged position. And the pressure plate is move back, because the spring force is acting against the pressure plate.
The clutch plate becomes free, remains the flywheel rotates as long the engine in running. “Control of the torque of the engine is depends on contact area of the clutch”. If the contact area of the clutch with the flywheel is increases then the torque is also increases. Single plate clutches are mostly used in light vehicles like scooters, bikes and etc…
Advantages of single plate clutch:
- This enables easy gear changing.
- No binding of friction surfaces.
But the disadvantage is it requires more stiffer return spring .