The Diesel Engine

There are many parts to a diesel engine. There is an exhaust shaft, intake camshaft, spark plug, valves, piston, connecting rod, crankshaft, and a water jacket for coolant flow. The first part is the suction stroke. Pure air gets sucked in by the piston sliding downward. The next step is the compression stroke. The piston compresses the air above and uses thereby work, performed by the crankshaft.The third step is the power stroke. In the upper dead-center, the air is max. Compressed: pressure and temperature are very high. Now the black injection pump injects heavy fuel in the hot air. By the high tempera the fuel gets ignited immediatley (autoignition). The piston gets pressed downward and performs work to the crankshaft. The last step is the expulsion. In this step the burned exhaust gases are ejected out of a cylinder throught a second valve by the piston sliding upward again.

This is the diesel engine