Classification of the oil pan

Oil pan is the English name for: OIL PAN GASKET, located in the lower part of the engine: detachable, and seal for axle box oil sump casing. The oil pan is the lower portion of the crankcase, also known as the lower crankcase. Closed crankcase oil sump casing, preventing impurities from entering, and collected and stored by a stream of the frictional surface of diesel engine lubricating oil, part of sanqu heat, preventing oil oxidation. Oil pan is made of a thin sheet metal, and filled with oil baffle to avoid bumps caused by shocks to the right splash of diesel engine and lubricating oil impurities precipitated side equipped with a dipstick to check the oil. In addition, oil pan bottom is also equipped with a drain plug at the bottom.
Market Shang see of most car are is wet type oil late shell, is named for wet type oil late shell is due to engine of crankshaft song turn and Rod butters in crankshaft each rotating a week will immersion oil late shell of lubricants within once, up to lubrication role, while due to crankshaft of high-speed running, song turn each high-speed immersion oil pool within are will provoked must of essential oil and oil fog, on crankshaft and bearing for lubrication, called splash lubrication. Such on lubricants in oil late shell within of liquid surface height on has has must of requirements, if too low has, crankshaft song turn and Rod butters cannot immersion lubricants within, led to missing lubrication and Shun sliding crankshaft and Rod and bearing; if lubricants liquid surface too high and will led to bearing whole immersion, makes crankshaft of rotating resistance increases, eventually led to engine performance declined, while lubricants easy entered cylinder combustion chamber within, led to engine burn oil, spark plug product carbon, problem. This lubrication method is simple in structure, do not need to set up another tank, but the inclination of the vehicle must not be too large, otherwise they will be in oil, oil spills caused by burnt cylinder.
Dry-sump with in many racing engines. It does not store oil in the oil pan, it is more accurate to say that there is no oil pan. In the crankcase of the friction surfaces of these movements through a pore pressure of oil lubricated. Dry-sump engine was cancelled due to the oil pan of the function of storing oil, so oil pan height is greatly reduced, engine height is reduced, the Center is conducive to the benefits of reducing control. The main advantage is to avoid the wet-sump, those due to the intense drive to produce negative phenomenon. However, due to all the pressure comes from the oil pump lubricating oil. Oil pump power is coming through the rotation of the crankshaft through a gear connection. While in the wet-sump engine oil pump to provide pressure to camshaft lubrication is needed. But this pressure is very small, and pump needed momentum is very small. In dry-sump engine, however, the strength of this pressure lubrication needs much better. And oil pump size than wet-sump engine oil pump a lot. So this time to pump the motivation that you need more. This same as the supercharged engine, oil pump need to consume part of engine power. Especially in times of high speed, the engine speed increases, friction parts increases the intensity of need lubricating oils, so they need oil pump provides more pressure, crankshaft power consumption has increased.
Obviously such a design is not suitable for ordinary civilian car engine, because it requires some loss of engine power, will not only affect the power output, and not conducive to improving efficiency. Dry-sump will only be equipped with large or high-power engines, such as those born to competitive driving sports cars. For example Lamborghini is the dry-sump design, for it is, improve the lubricating effect of limits and lower center of gravity is more important, which can power through other aspects make up for improved outcomes, as regards the economy, is that this model does not need to be considered.