Modern day life cannot be imagined without cars, trains, motor-cycles etc.

All of us know that there engines run on diesel or petrol as fuel but, how exactly diesel or petrol makes these machines run? What’s the science behind it? These are a few questions we will try to address through this question. So, get along..

How does a car engine works-

The car or vehicle runs by energy released in the engine by burning fuel. The chemical energy of fuel is converted into heat energy which moves the piston. There are 4 stages or strokes as we call it in this energy conversion cycle.

These are shown in the figure below.

4 Stage/ Strokes Engine: Working Mechanism-

There is a cylinder which houses a piston, intake valve, exhaust valve, fuel injection system. The piston in turn is connected to a crank-shaft.