Key to diagram
Air is introduced into the cylinder (A). An injector squirts fuel into the cylinder where the upward stroke of the piston (B and C) compresses the mixture. In these conditions the fuel ignites spontaneously (D) and the expansion of the combustion products forces the piston down. The rotation of the crankshaft pushes the piston up (E) and the exhaust gases are expelled. In the diesel engine illustrated, a turbocharger uses the energy of the exhaust gases to force air into the cylinder via linked impellers, achieving greater compression in the cylinder.
Related entry diesel fuel
Related category TECHNOLOGY
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