The document discusses the air braking system used in Indian railways. It begins with a brief history of air brakes, which were invented in 1872 by George Westinghouse. The document then provides an introduction to different coaches manufactured in India and defines what an air brake system is. It proceeds to explain the working principle of single pipe and twin pipe air braking systems used in India. The key components of each system are identified and their functions are described. Some advantages of air brakes are their reliability and effectiveness even with leaks. Maintenance and initial cost are identified as limitations. The document concludes that air brakes are preferred for performance-critical applications due to their maximum effectiveness.

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AIR BRAKING SYSTEM IN INDIAN RAILWAYS
PRESENTED BY:
ABIN KRISHNA.V.S

2. CONTENTS
 History
 Introduction
 Working principle
 Functions of components
 Advantages
 Limitations
 Conclusion
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HISTORY
 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.

4. After 1872 by using air braking system baker's
are use to brake the wheel.
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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
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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.
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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.
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8. 1.SINGLE PIPE BRAKING SYSTEM
Components
 Main reservoir.
 Compressor.
 Driver brake valve/Feed valve.
 Brake pipe.
 Angle cocks.
 Brake cylinder.
 Auxiliary reservoir.
 Brake block.
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9.  Triple Valve.


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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.
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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.
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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.
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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.
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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.
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16. LIMITATIONS
Maintenance
Initial cost
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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.
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