Farm Power & Machinery

Principle of I.C. Engine

• A mixture of fuel with correct amount of air is exploded or burnt inside the engine cylinder which is closed at one end. As a result of the explosion, heat is released and this causes the pressure of the burning gases to increase, regulating the piston to move down in the cylinder. The movement of piston is transmitted to a crankshaft by a connecting rod, so that the crankshaft rotates the flywheel. To obtain continuous rotation of the crankshaft explosion has to be repeated. In addition to this, the burnt gases has to be expelled from the cylinder, fresh charges of fuel and air must be admitted and the piston must be moved back to its original position.