What is the oil pan

The oil pan (English Name: oil pan) is located at the lower part of the engine. The oil pan is the lower half of the crankcase, also known as the lower crankcase. The function is to close the crankcase as the shell of the oil storage tank, prevent impurities from entering, collect and store the lubricating oil flowing back from the friction surfaces of the fuel engine, dissipate part of the heat, and prevent oxidation of the lubricating oil.

The oil pan is mostly stamped from thin steel plate. The oil stabilizer baffle is installed inside to avoid the right side shock and splash caused by the diesel engine bumping, which is conducive to the precipitation of lubricating oil impurities. The oil dipstick is installed on the side to check the oil quantity. In addition, the lowest part of the bottom of the oil pan is also equipped with an oil drain plug.

The oil pan can be divided into wet type and dry type. In addition, we need to understand two concepts first, splash lubrication: for the engine, the oil in the oil pan is taken up by the rotation of the crankshaft and "splashed" on the friction surface to realize lubrication; Pressure lubrication: after the oil is pumped by the oil pump, the oil will be sent to the required parts at a certain pressure to achieve protection.