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Engine crankcase: structure,Arena Plus login function and fault analysis Engine crankcase is an important part of the automobile engine. It not only plays a crucial role in the normal operation of the engine, but also It has an important impact on the performance and economy. This article will discuss the engine crankcase from three aspects: structure, function and fault analysis. I. Structure engine crankcaseIt is a major part of the engine. Its structure mainly includes crankshaft, connecting rod, piston, crankshaft bushing, cover plate, deep groove ball bearing, etc. The crankshaft is the most important part of the engine crankcase. It is connected to the piston through the connecting rod to transmit the gas power in the cylinder. Its structure is fine and the work requirements are high. Once a problem occurs, it will directly affect the normal operation of the engine. The connecting rod is the part that connects the crankshaft to the piston. At the same time, there is also a relatively independent lifting part, which can adjust the center distance of the connecting rod to adapt to different workloads and speeds. The piston is the most important element in the engine combustion chamber. The crankshaft bushing is a component installed on the crankshaft spindle hole in the crankcase. Its function is to reduce the gap between the crankshaft and the inner hole wall of the crankshaft case, so as to prevent friction and wear. The cover plate is the part that fixes the connecting rod and crankshaft bushing, and is generally bolted.Deep groove ball bearings are the key parts to support the crankshaft. II. The function of the crankcase of the engine is mainly to convert the gas power on the piston into the rotary power of the crankshaft, and transmit this power to the output shaft of the engine. All the parts in the crankcase exist to achieve this goal. Specifically, the working process of the engine crankcase is as follows: the engine burns the mixture of gas or diesel and air in the combustion chamber to produce high-temperature and high-pressure gas, which pushes the piston down, thus driving the crankshaft to rotate. The crankshaft converts the movement of the piston into rotational motion through the connecting rod, and transmits this rotational movement to the engine output shaft so that the vehicle can move. The engine crankcase also plays an important role in lubrication and cooling. The crankshaft rubs against other parts under the lubrication of oil, causing wear and tear.It will generate heat, and the radiator in the engine crankcase can effectively cool the crankshaft and ensure the good working condition of the crankshaft. III. Fault analysis Because the engine crankcase is in the most critical position of the automobile engine, its failure will have a serious impact on the normal operation of the automobile engine. Once the important parts in the crankcase, such as crankshafts, connecting rods, pistons, etc., wear, breakage and other problems occur, the operation of the engine will be out of balanced and even cause damage to the engine. Therefore, once an abnormal situation is found inside the crankcase, the owner should check and repair it in time. When repairing faults, it is necessary to choose different methods according to the specific situation. For example, the wear of components such as crankshafts, connecting rods and pistons can be handled by replacement or grinding repair, while the replacement of small parts such as crankshaft bushings requires more detailed operation.In a word, the engine crankcase is an important part of the car engine, and it is also one of the most important parts that car owners need to pay attention to. Only by understanding its structure and function, and discovering and solving faults in time can we ensure the stability and safety of the operation of the car.

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