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nature of burning fuel mixture..
In a gasoline engine, the explosion process is:
1. Intake stroke – fuel is mixed with air
2. Compression stroke – piston goes up, mixture of fuel and air is compressed
3. Ignition stroke – fuel/air is ignited through the use of a spark plug
4. Exhaust stroke – piston goes up, pushes exhaust through the exhaust valve
In a diesel engine, the explosion process is:
1. Intake stroke – intake valve opens, air in, piston goes down
2. Compression stroke – piston goes up, air compressed (heated in excess of 540°C)
3. Combustion stroke – fuel is injected (right time), ignition, piston goes down
4. Exhaust – piston goes up, pushes exhaust through the exhaust valve