What are the five major systems of an engine?
1 Answers
The five major systems of an engine are the fuel supply system, starting system, cooling system, lubrication system, and ignition system. The function of the fuel supply system in a gasoline engine is to prepare a certain quantity and concentration of the air-fuel mixture according to the engine's requirements, supply it to the cylinders, and exhaust the burned gases from the cylinders into the atmosphere. The function of the lubrication system is to deliver a specified amount of clean lubricating oil to the surfaces of moving parts to achieve fluid friction, reduce frictional resistance, minimize wear on components, and clean and cool the surfaces of the parts. The lubrication system typically consists of oil passages, an oil pump, an oil filter, and some valves.