What are the functions of the engine lubrication system?
2 Answers
The functions of the engine lubrication system are as follows: 1. Reduce friction resistance: The lubricating oil forms an oil film between moving parts to reduce friction resistance and power loss, and minimize wear of components. 2. Prevent excessive part temperature: The cooling effect utilizes the fluidity of the oil to carry away some of the heat from engine parts, preventing them from overheating and burning out. 3. Cleaning effect: The circulating oil carries away metal particles worn off during engine operation, dust inhaled from the atmosphere, and some solid substances produced by fuel combustion, preventing the formation of abrasives between parts that could increase wear. 4. Sealing effect: The viscosity of the oil allows it to adhere to the surfaces of moving parts, improving the sealing effect and reducing air leakage. 5. Anti-rust effect: The lubricating oil film adheres to metal surfaces, isolating air and water, thereby providing anti-rust and anti-corrosion protection.
As a veteran driver with over 20 years of experience, I've personally witnessed the critical role of the lubrication system. It not only lubricates moving engine components like pistons and bearings to reduce friction and wear, keeping operations smooth as new, but also performs cleaning functions by carrying away metal debris and dust generated during operation to the filter for disposal. Its cooling function is equally vital, as engine operation generates heat, and the oil helps dissipate this heat to prevent overheating and part damage. Additionally, it provides sealing by forming an oil film on cylinder walls to prevent high-pressure gas leaks, ensuring combustion efficiency, and offers anti-corrosion protection to keep metals rust-free, extending engine life. I still remember a youthful oversight when I forgot to change dried-out oil, leading to increased engine noise and nearly causing serious damage. Since then, I've made it a habit to regularly check oil levels and quality, ensuring my beloved car runs long and far.
