Internal Combustion engines are a primary source of power for industry and transportation. All non-electric and fuel cell vehicles use internal combustion engines for locomotion power.
The figure shown is a 4 stroke engine.
1: intake/induction: The intake valves open and the pistons lowers sucking air (blue) in. The air/fuel acting as air (rare cases) is referred to as "charge" under all circumstances.The volume of the chamber increases in this step.
2: Compression: During this stroke, both valves are closed and the piston moves upwards, decreasing the volume and compressing the "charge" to the maximum level (TDC). Also, the temperature and pressure drastically increase and become very high due to energy transfer and just before TDC, a spark plug receives a high voltage charge and ignites the "charge". In most engines, the fuel (gasoline, bio-fuel) gets injected immediately
3 Power: The pressure of the combustion gases from the ignition forces the rotary piston downward. In addition theses gases expand due to temperature and when the piston is near BDC, the exhaust valve opens,
4:Exhaust: The high pressure gases want to equalize with the atmosphere so they escape the piston and get emitted into the air.
5: Circular Motion. The pistons pull and push a lever attached to an axle causing it to rotate powering a wheel.
The figure shown is a 4 stroke engine.
1: intake/induction: The intake valves open and the pistons lowers sucking air (blue) in. The air/fuel acting as air (rare cases) is referred to as "charge" under all circumstances.The volume of the chamber increases in this step.
2: Compression: During this stroke, both valves are closed and the piston moves upwards, decreasing the volume and compressing the "charge" to the maximum level (TDC). Also, the temperature and pressure drastically increase and become very high due to energy transfer and just before TDC, a spark plug receives a high voltage charge and ignites the "charge". In most engines, the fuel (gasoline, bio-fuel) gets injected immediately
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| Figure 5 |
3 Power: The pressure of the combustion gases from the ignition forces the rotary piston downward. In addition theses gases expand due to temperature and when the piston is near BDC, the exhaust valve opens,
4:Exhaust: The high pressure gases want to equalize with the atmosphere so they escape the piston and get emitted into the air.
5: Circular Motion. The pistons pull and push a lever attached to an axle causing it to rotate powering a wheel.
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