Chapter 16 Combustion engines

16.1 The reciprocating piston internal combustion engine working cycle

The reciprocating piston engine works on the four-stroke or two-stroke cycle. Here we concentrate on the four-stroke cycle. In the spark ignition petrol engine the power is generated by the fuel/air mixture being drawn into the cylinder during a suction stroke and being ignited by means of a spark towards the end of the compression stroke. In the case of the compressionignition oil or diesel engine air only is drawn in during the suction stroke and towards the end of the compression stroke diesel fuel is injected. The high temperature of the ...

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