Monday 21 March 2016

Engine

Hi guys, today I am going to discuss about engine of automobile and their basic components

What do we generally know about engines??

As per my language engine means-

A motor which is used to rotate the wheels by using some resourceful fuel.
 Ok let it be we are not concern about resourceful fuel.

But the bookish language defines it as-
The definition of an engine is a machine or instrument that uses energy to create mechanical power, or a locomotive on a train. 


So we got what is engine

Now we will discuss about its components and types
There are mainly two types of engines
1)External combustion engine
2)Internal combustion engine


An external combustion engine (EC engine) is a heat engine where a working fluid, contained internally, is heated by combustion in an external source, through the engine wall or a heat exchanger.

All automobile engines are internal combustion engine

What is internal combustion engines??
An internal combustion engine (ICE) is a heat engine where the combustion of a fuel occurs with an oxidizer (usually air) in a combustion chamber that is an integral part of the working fluid flow.

There are mainly two types of internal combustion engines

1)spark ignition engine (SI engine)
2)compressive ignition engine(CI engine)

Spark engines are petrol engines and cannot be diesel.
In spark engines the mixture of fuel and air is ignited by a spark by a spark plug.

Compressive ignition engine-
In compressive ignition engine, the mixture of fuel and air is ignited by pressure.
I end this blog with this topic but the engine topic is not yet finished, I will write about two stroke and four stroke engine in the next blog

See you next time

https://youtu.be/5tN6eynMMNw
View this video for combustion engines
Thank you

Tuesday 15 March 2016

Suspension system

Hi guys, this is Pushan Mohanta and today I am writing on suspension system. In last blog I discussed about braking system.


Suspension is the system of tires,tires air,springs,shock absorbers and linkages that connects a vehicle to its wheels and allow relative motion between the two.

Basic parts

Control Arm-
                        Movable lever that fasten the steering knuckle to the vehicle body or frame.

Steering knuckle-
                                Provides a spindle or bearing support for the wheel hub, bearings and wheel assembly.

Ball joints-
                   Swivel joints that allow control arm and steering knuckle to move up and down and side to side.

 Springs-
                Supports the weight of the vehicle;permits the control arm and wheel to move up and down.

Shock absorbers or dampener-
                                                         Keeps the suspension from continuing to bounce after spring compression and extension.

Control arm bushing-
                                       Sleeves that allows the control arm to swing up and down on the frame.

Let's discuss that suspension system, there are two types of systems

Non-independent suspension-
                                                       Both right and left wheel attached to the same solid axle.when one wheel hits a bump in the road,it's upward movement causes a slight tilts of the other wheel.

Independent suspension-
                                               Allows one wheel to move up and down with minimal effect to the other.
For any enquiry or any other requirement or to explain any part of it you can add a comment
Thank you
                                                     
                   

Monday 7 March 2016

Braking system

Hi guys, this is Pushan Mohanta and  today I am starting my blog with the topic braking system.
Hope you will like it;

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.

Depending on the vehicle you are driving, there are different types of brake systems.
Mainly there are two types of systems
Disc Brakes: A friction system using a wheel brake to slow the rotation of the automobiles wheels.


  • Drum Brakes: A friction system using a set of shoes or pads to press against a brake drum.
    Drum brakes
  • There are few more types of braking system
  • Single-Circuit Hydraulic Brakes: 
  • Dual-Circuit Hydraulic Brakes:
  • Brake-by-wire: 
  • Antilock Braking System (ABS):
  • Power Brake Booster: 
  • Air Brakes: 
  • Advanced Emergency Braking System (AEBS): 

  • There are three common characteristics of service brake systems that can be found in modern day vehicles, including:
    • Friction
    • Pumping
    • Electromagnetic

    Modern braking systems will employ one of these types of brakes. 
  • Before learning about the different types of brakes that make up modern braking systems and the different systems that an automobile can have, its helpful to know some of the parts that comprise a typical automotive braking system.
    This list includes:
    • Brake Pads: steel backing plates used in disk brakes; friction material is bound to the surface facing the rotor and is usually made of ceramic, metal or other hard-wearing composite materials.
      brake shoe
    • Brake Shoes: 2 pieces of sheet steel welded together that carry the brake lining
    • Brake Drum: rotating drum-shaped component used in drum brakes
    • Brake Lining: heat-resistant, soft but tough material with a high friction characteristic housed inside a brake shoe
    • Rotor: cast iron brake disc connected to wheel and/or axle; sometimes made of reinforced carbon-carbon, ceramic matrix or other composite
    • Piston: a moving component contained by a cylinder
    • Caliper: a device on which brake pads and pistons are mounted
      • Floating Calipers:  moves relative to rotor; uses a piston on a single side of disc to push inner brake pad into braking surface before pulling caliper body in to apply pressure on opposite side of disc.
      • Fixed Calipers: does not move relative to rotor and is sensitive to imperfections; uses one or more single pairs of opposing pistons to clamp from each side of the rotor
    • Master Cylinder: a device that converts the non-hydraulic pressure from your foot into hydraulic pressure and controls slave cylinders at the opposite end of the hydraulic system.
    • Vacuum Servo/Brake Booster: a component used to enhance the master cylinder and augment pressure from a drivers foot through the use of a vacuum in the engine intake.
  • Guys plz comment if any other topic you want to know