1.
GANDHI INSTITUDE
OF EXCELLENT
TECHNOCRATS
SEMINAR REPORT ON
AIR BRAKING SYSTEM ON
INDIAN RAILWAYS
SUBMITTEDBY:
SANDIPSENAPATI
B.TECH,4TH YEAR
MECHANICAL
GIET.GANGAPATNA
BHUBANESWAR
1

2.
Content
 History
 Introduction
 Working principle
 Functions of components
 Advantages
 Limitations
 Conclusion
2

3.
 This fail-safe air brake system is based upon a design
patented by George Westinghouse on March 5, 1872.
 An Air Brake is a conveyance braking system actuated by
compressed air.
 Before 1872 a piston like plate was used on the train wheel
for continue the braking system.
3
History

4.
After 1872 by using air braking system
baker's are use to brake the wheel.
4

5.
Introduction
 In Indian railway there are different type of
coaches which are manufactured by
different units
 ICF (Integrated Coach Factory), Chennai
 RCF (Rail Coach Factory), Kapurtala
 BEML (Bharat Earth Movers Limited),
Bengaluru
5

6.
What is brake ?????
A brake is a device by means of which
artificial resistance is applied to a moving
machine member, in order to slow or stop
the motion of a machine.
What is Air Brake system ?
Brakes applied with the help of air pressure
are called Air Brakes and the system
actuated to apply this phenomenon is
called as Air Brake System.
6

7.
Air Brake Concept
 Basically air brake’s are uses on heavy
vehicle's.
There are two type’s of air braking
system.
1. Single pipe braking system.
2. Twin pipe braking system.
7

8.
1.Single pipe braking system
Component’s
 Main reservoir.
 Compressor.
 Driver brake valveFeed valve.
 Brake pipe.
 Angle cocks.
 Brake cylinder.
 Auxiliary reservoir.
 Brake block.
8

9.
 Triple Valve.


9

10.
Function of components
 Compressor:
The pump which draws air from
atmosphere and compresses it on the train.
 Main Reservoir:
Storage tank for compressed air for
braking and other pneumatic system.
 Feed Valve:
To ensure that the brake pipe pleasure
remains at the required level.
10

11.
 Brake pipe:
The pipe running the length of the train.
Which transmits the variation in pressure
required to control the brake.
 Angle cocks:
At the end of the each vehicle angle cocks
are provided to allow the ends of the brake
pipe hoses.
 Brake cylinder:
Each vehicle are at least one brake
cylinder. Sometimes two or more are
provided.
11

12.
 Auxiliary reservoir:
There is always a source of air available to
operate the brake auxiliary valve is connected
on one side of the piston of triple valve.
 Brake bloke:
This is frictional material which is pressed
against the surface of the wheel.
 Triple valve:
The orientation of the brake on each
vehicle is controlled by the tripled valve.
12

13.
2.Twin pipe braking system
Twin pipe is the advanced process on
which it is possible to use of the air in
the auxiliary reservoir more quickly
then brake pipe can recharge it.
 Basically there are two pipes are use
on the each vehicle.
13

14.
14

15.
Advantages
 Air is available everywhere in atmosphere
so the brake can never run out of its
operating.
 Air does not corrode the metals so the life of
pneumatic brake is more.
 Air brakes are effective even with
considerable leakage, so an air brake system
can be designed with sufficient fail-safe
capacity to stop the vehicle safely even when
leaking.
15

16.
Limitations
Maintenance
Initial cost
16

17.
Conclusion
 Due to it’s maximum effectiveness in terms of
performance, it is mostly preferred for high end
works like supercars, mining work etc.
17

18.
18