This document discusses air brake systems used on trains. It begins with an introduction and then describes the working principle and components of a single pipe air brake system, including the compressor, main reservoir, brake pipe, angle cocks, brake cylinder, auxiliary reservoir, and brake blocks. It explains the functions of each component and how they work together. The document also briefly describes twin pipe air brake systems and notes some advantages of air brakes like their ability to operate anywhere and effectively stop trains even with leaks. It concludes that air brakes are preferred for heavy vehicles due to their maximum effectiveness.

1. Content
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⚫Introduction
⚫Working principle
⚫Functions of components
⚫Advantages
⚫Limitations
⚫Conclusion

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

3. What is brake ?????
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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.

4. 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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5. 1.Single pipe braking system
Component’s
 Main reservoir.
 Compressor.
 Driver brake valveFeed valve.
 Brake pipe.
 Angle cocks.
 Brake cylinder.
 Auxiliary reservoir.
 Brake block.
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6. Function of components
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 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.

7.  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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8.  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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9. 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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10. Advantages
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⚫ 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.

11. Limitations
Maintenance
Initial cost
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12. 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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