The sequence which describes the four-stroke engine cycle is air and fuel intake, compression and ignition, combustion and expansion, exhaust.
<h3>What is four stroke engine cycle?</h3>
Four stroke engine cycle is a type of engine in which internal combustion takes place by the piston.
Stroke in the engine stands for the whole travel of piston along the cylinder. Following are the sequence of processes that occur in the engine:
- Injection: In this process air and fuel are injected to the engine.
- Ignition: The intake material will compressed and ignition of them takes place.
- Combustion: As a result of the ignition, combustion of the fuel takes place and due to the formation of products from the combustion reaction again expansion takes place.
- Exhaust: In this step piston pushes out burned gases from the engine.
Hence, correct sequence is air and fuel intake, compression and ignition, combustion and expansion, exhaust.
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