14-11-2012, 06:17 PM
CLUTCH
CLUTCH.pptx (Size: 1.03 MB / Downloads: 100)
Definition and Necessity for a CLUTCH
Clutch is a device used in transmission system of a vehicle to transmit the rotary motion of one shaft when desired to second shaft of which axis are coincident with that of first. Thus, the clutch is located between the engine and the transmission system.
When the clutch is engaged, power (Torque) transmits from the engine to the driving wheels through the transmission system and the vehicle moves. When the clutch is disengaged, the power is not transmitted to the driving wheel and the vehicle stop, while engine is still running.
Assembly and Working:
The clutch unit consists of - a friction-type disc, with 2 friction facings and a central splined hub. - a pressure plate assembly, consisting of a pressed steel cover, a pressure plate with a machined flat face, and a segmented diaphragm spring. And a release bearing and operating fork.
The friction disc is sandwiched between the machined surfaces of the flywheel and the pressure plate when the pressure plate is bolted to the outer edge of the flywheel face.
FUNCTION OF CLUTCH
To permit engagement or disengagement of a gear when the vehicle is stationary and the engine is running
To transmit the engine power to the road wheel smoothly without shocks to the transmission system while setting the vehicle in motion.
To permit the engaging of the gear when the vehicle is in the motion without damping the gear wheel.