The components of the engine lubrication system mainly include organic oil pumps, pressure regulating valves, oil filters, oil radiators, oil pressure sensors, nozzles, oil ducts, crankcase ventilation filters, etc.

The components of the engine lubrication system mainly include organic oil pumps, pressure regulating valves, oil filters, oil radiators, oil pressure sensors, nozzles, oil ducts, crankcase ventilation filters, etc. The lubrication system not only plays a role in lubricating various components of the engine, but also has functions such as cooling, cleaning, sealing, and rust prevention, among which lubricating oil plays a crucial role.

Principle: When the engine is running, a certain amount of oil film is kept between the relative moving parts and stored between the surfaces, preventing direct friction between the parts, thereby reducing the friction coefficient, reducing friction losses, and reducing surface wear of moving parts, improving the effective power of the engine, and ensuring the service life of the parts.
Lubricating oil can seal the gap between the piston and cylinder, and the oil film formed by lubricating oil can increase sealing, prevent gas leakage, and compensate for small gaps to prevent noise generation.

The basic task of a lubrication system is to continuously supply clean, pressurized, and temperature appropriate oil to the friction surfaces of moving parts, enabling the engine to operate normally.
For this reason, the pressure lubrication system must have an oil pump that establishes sufficient oil pressure for pressure lubrication and ensures oil circulation, a container for storing oil (usually using an oil pan to store oil), and a circulating oil circuit composed of lubricating oil pipes and a series of lubricating oil channels processed on the engine body. There must also be a device in the oil circuit that limits the maximum oil pressure - a pressure limiting valve, which can be attached to the oil pump or set separately.