What is a Dry Sump Oil Pan?
1 Answers
Dry sump oil pan refers to an oil pan that does not contain engine oil, as the car's engine relies entirely on pressure lubrication. The dry sump system offers the following advantages: 1. Increased engine power. Since the oil pan of a dry sump system holds almost no engine oil, there is no oil stirring resistance when the engine crankshaft rotates. Additionally, the multi-stage parallel oil return pump increases the vacuum degree in the crankcase, reducing resistance during the movement of the crankshaft and pistons, which can lead to a certain improvement in engine power. 2. Enhanced engine lubrication performance. The engine oil entering the main oil gallery comes from the oil tank rather than directly from the oil pan, resulting in better quality, higher pressure, and more stable flow of the lubricating oil, thereby improving the lubrication effect on the engine. 3. Improved vehicle stability. The oil pan of a dry sump system is very low, which lowers the engine height and consequently reduces the vehicle's center of gravity. Some oil pans are designed with a wedge shape that is lower at the front and higher at the back, tilting the engine forward to further lower the center of gravity. A lower center of gravity enhances the vehicle's stability and handling during driving.
