The engine oil pump, as an important part of the automobile engine, is known as the heart of the engine. It is responsible for delivering lubricating oil to various moving parts inside the engine to reduce friction, reduce wear, cool parts and remove impurities, ensuring efficient and smooth operation of the engine. This article will deeply explore the working principle, types, characteristics and role of the engine oil pump in the engine.
The working principle of the engine oil pump is relatively simple and efficient. When the engine is started and running, the driving gear on the camshaft drives the transmission gear of the oil pump to rotate. This rotational motion in turn drives the driving gear (usually a helical gear or a rotor) inside the oil pump to rotate at high speed. As the driving gear rotates, the volume of the oil inlet chamber increases, forming a low-pressure area, thereby sucking the lubricating oil in the oil pan. Subsequently, the lubricating oil is brought to the oil outlet chamber by the gear. As the gear on one side of the oil outlet chamber enters the meshing state, the volume of the oil outlet chamber decreases, the oil pressure rises rapidly, and finally the high-pressure lubricating oil is transported to various parts of the engine that need lubrication through the oil pipe.
Engine oil pumps can be divided into two categories according to their structural form: gear type and rotor type. Gear type oil pumps are further divided into external meshing gear type and internal meshing gear type.
The oil suction and oil pressure are generated by the rotation of a pair of meshing gears (driving gear and driven gear). The housing of the external meshing gear type oil pump is equipped with a driving gear and a driven gear, and the lubricating oil is sucked and discharged by the rotation of the gears. The internal meshing gear type oil pump uses two meshing gears inside and outside, and the structure is more compact, but the working principle is similar.
The lubricating oil is sucked and discharged by the interaction of the rotation of the rotor and the inner wall of the pump housing. The rotor type oil pump has a relatively complex structure, but has the advantages of low noise and uniform flow, and is particularly suitable for occasions with high requirements for noise and vibration.
The engine oil pump has the following salient features:
It can quickly and accurately deliver lubricating oil to all parts of the engine to ensure efficient engine operation.
The oil pump has reasonable design and excellent manufacturing technology, and can operate stably for a long time in harsh working environments.
Different types of oil pumps are suitable for engines of different models and specifications to meet the needs of different.
In an engine, the oil pump plays a vital role. It can not only reduce friction and wear of internal components of the engine and extend the service life of the engine; it can also reduce engine operating noise and vibration and improve driving comfort. In addition, the oil pump can also promptly remove impurities and carbon deposits inside the engine, keep the interior of the engine clean, and ensure stable engine performance.
As the heart power source of the engine, the engine oil pump plays an irreplaceable role in the normal operation of the engine. Through its efficient and reliable working performance, it ensures the efficient and stable operation of the engine. With the continuous development of the automobile industry and technological progress, the design and manufacturing process of the engine oil pump will also be continuously optimized and improved to meet the needs of modern engines with higher performance and lower emissions.
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