Moottorinvoitelu

Moottorinvoitelu refers to the lubrication of an internal combustion engine. Its primary function is to reduce friction and wear between moving parts, such as pistons, crankshaft, and camshaft. Proper lubrication is crucial for the longevity and performance of an engine.

The lubrication system typically involves a sump where the engine oil is stored. A pump circulates the oil under pressure to all critical components. This oil film prevents direct metal-to-metal contact, dissipates heat generated by friction, and helps to clean the engine by carrying away debris.

Engine oil also plays a role in sealing the combustion chamber by lubricating the piston rings and cylinder walls. Furthermore, it can help protect engine components from corrosion and rust.

The type and viscosity of engine oil used are important and depend on the engine's design, operating conditions, and manufacturer's recommendations. Over time, engine oil degrades and becomes contaminated with combustion byproducts and wear particles. Therefore, regular oil changes and filter replacements are essential maintenance tasks to ensure effective lubrication and engine health.

Different types of lubrication systems exist, including wet sump and dry sump systems. Wet sump systems are more common in passenger vehicles, where the oil is stored in a pan beneath the engine. Dry sump systems, often found in high-performance or racing vehicles, use a separate oil tank to store oil, allowing for a lower engine profile and improved oil supply under extreme conditions.