![]() This motion of the piston enables the crank-shaft to rotate. The gases push the pistons downwards which results in reciprocating motion of pistons. The expansion of heated gases and their forces act on the engine pistons. The engine converts Heat Energy into Kinetic Energy in the form of ‘ Reciprocating Motion’. Burning of highly atomized fuel particles which results in releasing / ejection of heat energy.Igniting the air-fuel mixture either with a spark ( petrol engine) or by self-ignition after raising the temperature of the air by compressing it ( diesel engine).Mixing of the fuel with air after breaking the liquid fuel into highly atomised / mist form.The suction of air (also known as breathing or aspiration).The combustion process involves many sub-processes which burn the fuel efficiently and results in the smooth running of the engine. The engine generates its power by burning the fuel in a self-regulated and controlled ‘Combustion’ process. It produces power and also runs on its own power. This is common for both petrol and diesel engines alike. An engine is a power generating machine which converts potential energy of the fuel into heat energy and then into motion. ![]() Petrol Engine Principle and Working Cycle Explained: What is an Engine?īefore knowing about how the Petrol Engine works, let’s first understand what is an engine. ![]()
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