Oil pump introduction

The oil pump is a device in the automotive lubrication system used to increase oil pressure and help oil reach other lubricated areas from the oil pan. Without an oil pump, it would be difficult for the oil to reach the friction areas from the oil sump and would not be able to lubricate effectively. In addition, the oil pump stores a certain amount of oil. Its main function is to circulate oil to all parts of the engine to ensure proper lubrication and reduce friction between moving parts.

YUYI is a leading company in the field of oil pump research and development, production, sales, and service. We specialize in the manufacture of many different types of oil pumps, including aluminum parts such as hour glass covers and oil pumps.

YUYI oil pumps are designed and manufactured to meet the highest manufacturing standards and utilize high-quality materials. All YUYI oil pumps utilize the latest gear and reduction gear technology to provide the highest level of quality and performance. Gears are machined to extremely tight tolerances to ensure proper engine pressure and correct, efficient oil pump operation. End plates are precision ground for maximum wear resistance.YUYI oil pumps are individually pressure and flow tested under conditions identical to actual engine operating conditions.

The role of the oil pump:

The function of the oil pump is to raise the oil to a certain pressure and force it to flow onto the moving surfaces of the engine parts. There are two types of oil pump structure: gear type and rotor type. Gear oil pumps are divided into internal gear oil pumps and external gear oil pumps.

Oil Pump Features:

The first important feature of an automotive oil pump is its capacity. The capacity of an oil pump is mainly determined by its size and design. The larger the size of the pump, the greater the capacity that can be delivered. The design of the oil pump also plays a vital role in determining its capacity. The efficiency of the pump can be improved by adjusting the flow rate of oil, the size of the pump, and the shape of the pump inlet and outlet.

Another key feature of an automotive oil pump is its ability to maintain a constant pressure as it delivers oil to different parts of the engine. This is important because if the oil pressure is not consistent, it can lead to engine wear and tear, which can cause damage to the engine over time. To ensure consistent pressure, the oil pump is equipped with a pressure relief valve that helps regulate oil flow.

1. simple structure, small size, light weight, large oil supply capacity.

2. Smooth running and low noise.

3. Excellent high-speed performance.

Oil pump material: oil pump is generally made of die-casting aluminium. (Please ask the sales staff for the specific model material)

Usage of oil pump:

Increase oil pressure to ensure a certain amount of oil, and forced to each friction surface oil supply components. Gear and rotor type oil pumps are widely used in internal combustion engines. Gear oil pumps have the advantages of simple structure, easy processing, reliable operation, long service life, high pumping pressure, and are widely used. The rotor pump has a complex rotor shape, which is mainly pressed by powder metallurgy. This type of pump has the same advantages as the gear pump, but the structure is compact and the capacity is smaller.

Oil pump working principle: 

The working principle of an automotive oil pump involves several important components and processes.

First, the oil pump is driven by the engine's crankshaft, which provides the rotational force necessary to turn the oil pump's gears or rotors. As the gears or rotors rotate inside the pump housing, they create a vacuum that draws oil from the sump or pan through the pump's inlet port. Once inside the pump, the oil is pressurised by the rotating gears or rotors and discharged through the pump outlet.

From there, the pressurised oil flows through the engine's oil passages and lubricates various engine components, including bearings, pistons and camshafts. Oil pressure is regulated by the engine's oil pressure safety valve, which ensures that oil pressure does not exceed safe operating levels.

Overall, automotive oil pumps play a vital role in maintaining proper lubrication and operation of the engine, ensuring smooth and efficient engine operation for many miles to come.

Gear-type oil pumps are widely used because of their reliable operation, simple construction, ease of manufacture and high pumping pressure.

When the engine is running, the camshaft active gear drives the oil pump transmission gear, the active gear fixed on the active gear shaft rotates, the driven gear rotates in the opposite direction, and the oil enters the inlet chamber along the oil. With the pump wall clearance and is sent to the oil outlet chamber. Thus, low pressure is formed in the oil inlet chamber, generating suction to draw the oil in the sump into the oil chamber. The continuous rotation of the master and follower gears continuously pushes the oil to the desired position.