Automobiles uses various kinds of clutches such as singleplate or multiplate clutch. Each clutch has got its own design, construction and working principle. Multiplate clutch consists of a number of clutch plates, where as singleplate clutch has only one clutch plate. As the number of clutch plates are increased, the friction surface also increase. The increased number of friction surfaces in clutch increases the capacity of the clutch to transmit torque in automobiles.
The plates are alternately fitted to the engine shaft and gear box shaft. They are firmly pressed by strong coil springs and assembled in a dru,. Each of the alternate plate slides in grooves on the flywheel and the other slides on splines on the pressure plate. Therefore, each alternate plate has inner and outer splines.
The multipleate clutches operating condition may be dry or wet. When the clutch is operated in an oil bath, it is called a wet clutch. When the clutch is operated dry, it is called dry clutch. The wet clutches are generally used in conjunction with the automatic transmission automotives.
Multiplate clutch works in the same way as the single plate clutch i.e. by operating the clutch pedal. The multiplate clutches are used in heavy commercial vehicles, automobiles, racing cars and motor cycles for transmitting high torque.
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