What is the function of an oil pan?
1 Answers
The oil pan is the lower half of the crankcase, also known as the lower crankcase. Its functions include sealing the crankcase to prevent impurities from entering the oil reservoir, collecting and storing the oil that flows back from the friction surfaces of the crankcase, dissipating some heat, and preventing oil oxidation. Classification of oil pans: Wet sump: Most cars on the market use a wet sump oil pan. It is named a wet sump because the crankshaft throws and connecting rod big ends of the engine are immersed in the lubricating oil in the oil pan once every rotation of the crankshaft, providing lubrication. Additionally, due to the high-speed rotation of the crankshaft, each high-speed immersion of the throws into the oil pool generates oil splashes and mist, which lubricate the crankshaft and bearings. This is known as splash lubrication. Dry sump: Dry sump oil pans are used in many racing engines. They do not store oil in the oil pan, or more accurately, they lack an oil pan altogether. In these crankcases, the friction surfaces of moving parts are lubricated by oil jets from metering orifices. Since the dry sump engine eliminates the oil storage function of the oil pan, the height of the original oil pan is significantly reduced, lowering the engine's height. The lowered center of gravity improves handling. The main advantage is avoiding the adverse effects associated with wet sump oil pans during aggressive driving.
