Vacuum brakes are one of the oldest braking systems that exist. It was first introduced and employed on the trains in the mid-1860s. The simplest way to explain it is that it uses vacuum power to stop the train. These brakes have been improved significantly over the years.
Vacuum or power brakes are used in all most all the railways and modern-day cars. It consists of five major components:
1.Brake Pedal
2.Intake Manifold
3.Seal
4.Hinge and
5.Spring
How Vacuum brake works?
This system has two chambers, one is always filled with a vacuum(first) and the other one has either vacuum or atmospheric air(second). There is a link between two chambers, so a vacuum can transfer from the first chamber to second.
When we push the brake pedals, it opens up the second chamber seal, which allows atmospheric air to enter into the second chamber. This air exerts a lot of pressure on the first chamber filled with a vacuum which eventually pushes the brake fluid and stops the vehicle. I am embedding a very important video which will help you understand exactly how it works.
This project is good for the case study purpose. I am giving you some helpful links below :
How power brakes Works?
How Vacuum brakes Works from African Railways?
Brake System used in IR
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