What is the function of the engine lubrication system?
2 Answers
The functions of the engine lubrication system are: 1. Lubricate the surfaces of moving parts to reduce wear and engine power consumption; 2. Clean friction surfaces, removing metal shavings and foreign particles; 3. Dissipate heat generated by friction; 4. Enhance sealing between moving parts to prevent gas or oil leakage; 5. Protect part surfaces from corrosion and rust; 6. Serve as hydraulic fluid; 7. Form an oil film on moving part surfaces to absorb shocks and reduce vibrations. The engine lubrication system consists of an oil supply device, filtration device, and instrument signal device. Its working principle is: the main oil pump draws lubricating oil from the oil pan, pumps it into the oil cooler, and the cooled lubricating oil passes through the oil filter before entering the main oil pipe at the lower part of the engine block, where it is delivered under pressure to various lubrication points.
I found that the function of the engine lubrication system is to keep the internal components running smoothly. It forms an oil film between moving parts, significantly reducing friction and wear, thereby extending the engine's lifespan several times over. Lubrication also helps with heat dissipation—when the engine runs hot, the oil carries away and disperses the heat, preventing overheating and damage. The cleaning function is equally crucial, as the oil flushes away combustion residues, dust, and tiny metal particles, preventing carbon buildup and clogging of oil passages. I also noticed that it seals piston rings, improving fuel efficiency and reducing consumption. Neglecting the lubrication system can lead to direct friction between parts, generating high temperatures and noise, or even engine seizure and failure, which is costly and dangerous to repair. Therefore, regular oil changes and checking oil levels are critical to maintaining vehicle health. Investing in high-quality oil yields significant returns with minimal cost.
