ROLE OF CLUTCH IN AUTOMOBILE......

CLUTCH:

            A clutch is a mechanical device that engages and 

disengages the power transmission, especially from 

driving shaft to driven shaft.

Clutches are used whenever the transmission of power

 or motion must be controlled either in amount or over 

time (e.g., electric screwdrivers limit how much torque 

is transmitted through use of a clutch; clutches control 

whether automobiles transmit engine power to the wheels).

In the simplest application, clutches connect and 

disconnect two rotating shafts . In these devices, one 

shaft is typically attached to an engine or other power 

unit (the driving member) while the other shaft (the 

driven member) provides output power for work. While 

typically the motions involved are rotary, linear clutches 

are also possible.

In a torque-controlled drilll, for instance, one shaft is 

driven by a motor and the other drives a drill chuck. The 

clutch connects the two shafts so they may be locked 

together and spin at the same speed (engaged), locked 

together but spinning at different speeds (slipping), or 

unlocked and spinning at different speeds (disengaged).

POWER TRANSMISSION IN CLUTCH:

 Clutch is a power transmission element that transmit power from one shaft to another by means of coincident in axis with former shaft.

Clutch is located between flywheel and gearbox of transmissionsystem.It performance engaging and disengaging of gear .

Its also performance following functions such as:

*Clutch permits engaging of gears smoothly without damaging the gear wheels when the vehicle is moving.