This document discusses hydraulic brakes. It begins by defining brakes as mechanical devices that inhibit motion by absorbing energy. It then lists different types of brakes, including mechanical, hydraulic, power, air, and electric brakes. The document focuses on hydraulic brakes, explaining that they use brake fluid to transfer pressure from the brake pedal to the actual brake mechanism at the wheels. It describes the principles and components of hydraulic brakes, including how Pascal's law allows for uniform braking pressure. The advantages are equal braking force and increased mechanical advantage, while the disadvantages include system failure if fluid leaks and higher initial costs.

1. Presented by-
Indranil Biswas
3rd year Mechanical Engineering
Camellia Institute Of Technology

2. What Is Brake ?
 A brake is a mechanical device that inhibits motion by
absorbing energy from a moving system. It is used for
slowing or stopping a moving vehicle, wheel, axle, or to
prevent its motion, most often accomplished by means
of friction.

3. Types Of Brake :-
 Mechanical brakes
 Drum brakes
 Disc brakes
 Hydraulic brakes
 Power brakes
 Air brakes
 Air hydraulic brakes
 Vaccum brakes
 Electric brakes

4. INTRODUCTION
HYDRAULIC BRAKES:
The hydraulic brake is an arrangement of braking
mechanism which uses brake fluid, to transfer
pressure from the controlling unit, which is usually
near the operator of the vehicle, to the actual brake
mechanism, which is usually at or near the wheel of
the vehicle.

5. PRINCIPLES OF HYDRAULIC
BRAKING
Hydraulic brakes work on the principle of Pascal’s law
which states that
“pressure at a point in a fluid is equal in all directions
in space”.
According to this law when pressure is applied on a fluid it
travels equally in all directions so that uniform braking
action is applied on all four wheels.

6. COMPONENTS OF HYDRAULIC
BRAKE
 Brake pedal
 A pushrod
 A master cylinder assembly containing a piston assembly
 Pipelines
 Brake fluid
 Wheel cylinder

7. WORKING OF HYDRAULIC BRAKE
Brake paddle

8. ADVANTAGES
 Equal braking action on all wheels.
 Increased braking force.
 Simple in construction.
 Low wear rate of brake linings.
 Flexibility of brake linings.
 Increased mechanical advantage.

9. DISADVANTAGES
 Whole braking system fails due to leakage of fluid from
brake linings.
 Initial cost is high

10. Thank you