A slide on air braking system used in Indian Railways

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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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3. 3
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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