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Study of Brake: Master Cylinder

The document discusses different types of brake systems used in vehicles, including hydraulic brakes. It describes the key components of hydraulic drum brakes and hydraulic disc brakes. Both systems use a brake pedal connected to a master cylinder to generate hydraulic pressure, which is transmitted through brake lines and causes brake shoes to contract against a drum or disc to slow the vehicle. The main difference is that drum brakes expand inside a drum, while disc brakes use an external caliper to squeeze pads against a spinning disc rotor.

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Kareem Mohammed
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60 views3 pages

Study of Brake: Master Cylinder

The document discusses different types of brake systems used in vehicles, including hydraulic brakes. It describes the key components of hydraulic drum brakes and hydraulic disc brakes. Both systems use a brake pedal connected to a master cylinder to generate hydraulic pressure, which is transmitted through brake lines and causes brake shoes to contract against a drum or disc to slow the vehicle. The main difference is that drum brakes expand inside a drum, while disc brakes use an external caliper to squeeze pads against a spinning disc rotor.

Uploaded by

Kareem Mohammed
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as DOCX, PDF, TXT or read online on Scribd
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STUDY OF BRAKE

INTRODUCTION OF 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.

TYPES OF BRAKES SYSYTEM

1. Mechanical braking system

2. Hydraulic braking system

3. Vacuum braking system

4. Magnetic braking system

5. Electric braking system

Hydraulic Brakes

1. Drum Hydraulic Brake or Internal Expanding Hydraulic Brakes-

In drum hydraulic braking system the parts involved are-

 Brake pedal or brake lever- In hydraulic braking system same as other braking brake pedal or
brake lever is required by the driver to apply braking, this brake pedal or brake lever is attached
with the master cylinder through mechanical rod or connecting rod.

 Master cylinder– It is the simple cylinder and piston arrangement ( refer to article on master
cylinder) which converts the mechanical force from the brake pedal into the hydraulic pressure.

The brake pedal is connected with the master cylinder’s piston in such a fashion that the movement of
pedal causes to and fro motion of the piston inside the master cylinder.

 Brake fluid reservoir – it is the simple reservoir tank containing brake fluid which is connected
to the master cylinder with the help of brake hose.

 Brake lines- They are the hollow high pressure metal tube that connects the master cylinder
with the drum cylinder inside these brake lines high pressure brake fluid from the master
cylinder flows which is responsible for further brake actuation.
 Drum cylinder- It is the another cylinder fitted inside the drum of the drum brakes and is
connected with the brake shoes , the high pressure brake fluid from the brake lines comes to
this cylinder.

 Brake drum (refer to article on drum brake) – It is housing of drum cylinder , brake shoes and
spring , the outer part of the drum rotates with the wheel and inner part consisting the brake
shoe and cylinder remains stationary.

2. Disc Hydraulic Brakes or External Contracting Hydraulic Brakes-

Disc hydraulic parts and drum hydraulic brake parts are almost same that are

 Brake pedal or brake lever- Exactly same as drum brakes mentioned above.

 Master cylinder- Same as drum brakes

 Brake fluid reservoir- Same as drum brake.

 Brake lines – Same as drum brake but here they connect the master cylinder with the disc
calliper cylinder.

 Disc rotor- It is the metallic disc fitted with the wheel hub in such a fashion that it rotates with
the wheel of a vehicle moreover disc rotor is the surface that make frictional contact with the
brake shoe in order to stop or de accelerate the vehicle.

 Disc caliper- It is a small stationary component fitted over a disc just like a clamp, inside which
there is a housing of brake shoes and hydraulic cylinder, when the brakes are applied the brake
shoes inside the caliper contracts and make frictional contact with the rotating disc in order to
provide braking.

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