Oil pump: device and functions

The engine oil pump is a device used to inject oil into a working mechanism that is pressurized to the surfaces of moving parts. It is designed to raise the pressure in the internal system, and is also used to provide lubrication of operating parts.

The oil pump AKPP simultaneously fulfills one of the necessary and most important functions is the transfer of oil into a special tank from the crankcase capacity.

The lubrication system in the internal combustion engine plays a significant role and is used to reduce wear, for corrosion protection and cooling of friction parts, removing unnecessary objects of wear from surfaces.

An electric engine oil pump is a mechanism that performs work from a distributing or crankshaft, with the obligatory implementation of the correct operation of the drive shaft.

Advantageously, the oil pump is divided into two types, depending on the engine models on which it is installed, that is, seemingly adjustable or unregulated. They differ among themselves mainly in that uncontrolled pumps create and maintain a continuous pressure of the lubricant in the system by means of a reduction channel, and thanks to the regulation of the pump's capacity, uninterrupted pressure in the regulated pumps is maintained at a constant level.

At present, the most common type of oil pump is a gear oil pump. Its main advantage is that it is suitable for repair, it is uninterrupted and reliable, and when it is replaced, no significant monetary investments are required. Such an oil pump consists of two extremely important elements - two gears, driven and driving, which are located inside the shell. The pump moves the oil through the supply channel, is injected into the system directly through the pumping duct. The overall productivity of the gear pump depends directly on the correct operation of the crankshaft.

In addition, it is worth paying attention to the fact that in the process of increasing the supply oil pressure of the required volume, the relief valves in the channel are activated, which connect the suction and pump suction cavities that transmit a certain quantity of oil to the absorbing cavity.

At the same time, the pressure, which is restrained by the pressure reducing valve, directly depends on the compression force of the spring. As the maximum permissible pressure increases, the valve ball comes out, and some oil begins to be pumped into the suction cavity, thus reducing the pressure in the line. When working gears should take into account the distance between the walls of the pump casing and the ends of the teeth of the gears, since, located in the oil pump, they spin in different directions. The pressure created by the oil and passing through the pump depends on the resistance of the main line, the viscosity of the oil, the angular velocity, and the total speed of the gears.