The construction of the engine cylinder block covers the following aspects: firstly, the cylinder block component, which is composed of the cylinder head, cylinder block, and oil pan. In some engine designs, the cylinder block is divided into two parts, the upper part is called the cylinder block and the lower part is called the crankcase. The core function of the engine block is to serve as the cornerstone for assembling numerous engine mechanisms and systems. In addition, it also includes multiple key components such as crankshaft connecting rod mechanism, valve train, supply system, cooling system, and lubrication system. The cylinder head and cylinder inner wall work together to create a part of the combustion chamber, which needs to withstand extremely high temperatures and pressures. Furthermore, the crank connecting rod mechanism is also an indispensable part, which includes components such as pistons, connecting rods, and crankshafts equipped with flywheels. This institution also has to withstand the test of high temperature and high pressure, and its core task is to convert the linear reciprocating motion of the piston into the rotational motion of the crankshaft, thereby outputting power.