Understanding Engine

What is Engine ?

Any device which can convert chemical energy of fuel in to mechanical energy is called an Engine
Engine is heart of automobile in which combustion of fuel takes place inside the cylinder or outside the cylinder

Classification based on place where the combustion takes place :

• External Combustion Engine ( EC Engines ) : An engine in which combustion of fuel take place outside of the cylinder is known as EC engine. The Chemical energy of fuel (Solid, liquid or gas state) is converted in to heat energy which in turn is used to low boiling temperature liquid into steam like water, which rotates the turbine i.e basically converting in to Electrical Energy. Application : ships, locomotive, generation of electric power etc.

          For more information of  Application,Advantages, Disadvantages refer this link

          External Combustion Engines | Applications, Advantages, Disadvantages

The below GIF explains about one of the application of electricity generation :

GIF Reference : https://commons.wikimedia.org/wiki/File:BoilingWaterReactor.gif

• Internal Combustion (I.C.) Engine : An engine in which combustion of fuel take place inside the Cylinder. When the fuel burns inside the engine cylinder, it generates a high temperature and pressure. This high pressure force is exerted on the piston (A device which free to moves inside the cylinder and transmit the pressure force to crankshaft by use of connecting rod), which used to rotate the wheels of vehicle with the help of differential. In these type engines we can use only gases and high volatile fuel like petrol, diesel. These engines are generally used in automotive industries. In this blog we will be focusing on IC Engine  

          The below is gif for four stroke (4 Cylinder Engine),example of IC Engine :                

GIF Reference : https://www.pinterest.com/pin/34881793361869782

In the next post we will learn about I C Engine types on the basis of Stroke ( 2 or 4 Stroke)