The braking system is a fail-safe mechanism due to its design. The brakes will be activated if there is a leak in the system. According to the driver command, the brakes will apply, hold, or release due to a change in pressure in the pneumatic piping.
Parts of brake system :
- Compressor
- Angle cocks
- Pneumatic piping
- Air reservoir
- Triple valves
- Brake Discs
- Brake Calipers
- Brake Actuators
- Brake Pads
- Governor
Working Of Brake System :
The air in the brake pipe is released when the brakes are applied, resulting in low air pressure in the triple valve. The valves slider slides to the right as a result of the vacuum created by this. The compressed air in the auxiliary reservoir rushes to the brake cylinder as a result of the valves movement, pressing the piston against the spring and ultimately exerting pressure on the brake block, causing the wheel to slow down or stop.
Each triple valve receives pressure from the brake pipe when the driver lets off the brakes, which causes it to push the triple valves slide valve to the left. A "feed groove" above it between the brake pipe and the auxiliary reservoir and another connection below it between the brake cylinder and an exhaust port can both open in response to movement of the slide valve. The feed groove allows air pressure from the brake pipe to enter the auxiliary reservoir, which is then refilled until the pressure in the reservoir matches the pressure in the brake pipe.
The connection at the bottom of the sliding valve will also enable any air pressure in the braking cylinder to release through the exhaust port and into the atmosphere simultaneously. The piston will be pushed back by the cylinder spring when the air escapes, releasing the brake blocks from the wheels. Now that the train brakes have been removed, the auxiliary reservoirs are being filled in preparation for another application of the brakes. The air brakes on trains operate in this way.