The document discusses the friction clutch used in the Maruti Suzuki Swift hatchback. It describes the basic components and operation of a friction clutch, including the pressure plate, driven plate, release bearing, and dampers. When engaged, the pressure plate exerts force on the driven plate through a diaphragm spring to connect it to the flywheel. When disengaged by depressing the clutch pedal, the release bearing pushes against the pressure plate to remove clamping pressure and interrupt power transmission, allowing gear changes. Friction clutches provide smooth engagement, ability to engage/disengage while running, partial power transmission, and safety through slippage of excessive torque. However, their torque capacity is low and they

1. Study of Clutch
Friction Clutch
Yash Shah
1515055 A3
TY B.TECH MECH

2. Fig 1: Maruti Suzuki Swift

3. Introduction
•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.
• Maruti Suzuki Swift is India’s premium and most widely
used hatchback. Due to its reasonable cost and consistent
performance, it is the go-to car in the country.
Engine Specification
Engine: K-series Compression Ratio: 11:0:1
Capacity: 1197 cc Maximum Power: 84.3 ps @6000 RPM
Cylinders: 4 Maximum Torque: 115 Nm @ 4000 RPM
Valve: 6 Fuel Distribution: Multipoint Injection
Bore x Stroke: 73mm x 71.5 mm Clutch Dimension: 10.74” x 9.29” x
1.23”

4. About Friction Clutch: The vast majority of clutches ultimately rely on
frictional forces for their operation. The
purpose of friction clutches is to connect a
moving member to another that is moving at a
different speed or stationary, often to
synchronize the speeds, and/or to transmit
power. Usually, as little slippage (difference in
speeds) as possible between the two members
is desired.

5. Working:
When a car is moving under power, the clutch is engaged. A pressure plate bolted to the
flywheel exerts constant force, by means of a diaphragm spring, on the driven plate.
The driven (or friction) plate runs on a splined input shaft, through which the power is
transmitted to the gearbox. The plate has friction linings, similar to brake linings, on
both its faces. This allows the drive to be taken up smoothly when the clutch is engaged.
When the clutch is disengaged (pedal depressed), an arm pushes a release bearing
against the centre of the diaphragm spring which releases the clamping pressure.
The outer part of the pressure plate, which has a large friction surface, then no longer
clamps the driven plate to the flywheel, so the transmission of power is interrupted and
gears can be changed.
Parts:
1. Cover Plate
2. Pressure Plate
3. Driven Plate
4. Release Bearing
5. Dampers
Materials:
1. Ceramic
2. Compound Organic Resin
3. Copper Wire

6. Advantages:
1. Smooth engagement and minimum shock during the
engagement.
2. Friction clutch can be engaged and disengaged when the
machine is running since they have no jaw or teeth.
3. Easy to operate.
4. They are capable of transmitting partial power.
5. Friction clutch can act as a safety device. They slip when the
torque exceeds a safe value, thus safeguards the machine.
6. Frequent engagement and disengagement is possible.
1. Torque transmitting capacity is very less.
2. This is old type of clutch.
3. Not used in small vehicles
Disadvantages:

7. Thank You
Yash Shah
1515055