öljynpumpun

öljynpumpun is the Finnish word for oil pump. An oil pump is a mechanical device used to move oil. In the context of internal combustion engines, the oil pump is a critical component responsible for circulating lubricating oil throughout the engine. This lubrication is essential for reducing friction between moving parts, preventing wear, and dissipating heat.

The most common type of oil pump in engines is a gear-type pump. It consists of two meshing gears, one driven by the engine's crankshaft or camshaft, and the other a driven gear. As the gears rotate, they trap oil in their teeth and carry it from the oil pan to the engine's lubrication passages. Another common type is the rotor pump, which uses an inner and outer rotor to achieve the same pumping action.

The oil pump draws oil from the oil sump or oil pan at the bottom of the engine. It then pressurizes the oil and delivers it through an oil filter, which removes contaminants. From the filter, the pressurized oil is directed to various parts of the engine, including bearings, pistons, camshafts, and the valvetrain, ensuring all critical components receive adequate lubrication. A properly functioning oil pump is vital for engine longevity and performance. If an oil pump fails, oil pressure will drop, leading to rapid engine damage due to a lack of lubrication.