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Engine composition introduction and OKX Wallet loginits function The engine is the heart of modern motor vehicles, and the core component of the engine is the engine structure. The engine composition can be divided into three main parts: cylinder, cylinder head and crankcase. These three parts are usually called "three pieces". In addition, there are some small parts, such as valves, pistons, connecting rods, crankshafts, camshafts, valve caps, etc., which are also key components of the engine. The cylinder is one of the main components of the engine. It is located in the upper part of the engine and is usually made of high-strength metal materials. The cylinder is equipped with a piston and a valve, forming a combustion chamber in the engine. When the accelerator pedal is stepped on, the piston in the cylinder begins to move, pushing the air and fuel mixture intoThe combustion chamber guides the spark plug to ignite, burns the mixture, generates energy and pushes the piston back to the bottom of the cylinder. The cylinder head is the upper cover of the cylinder, usually made of aluminum alloy or cast iron. Its main function is to seal the cylinder and control the stroke of the valve. The valve is connected to the valve spring through the valve seat and valve rod, and the period of the valve switch is controlled by the camshaft on the crankshaft. The crankcase is the bottom area of the engine, usually made of cast iron or aluminum alloy. Its main function is to support the engine and protect the crankshaft and connecting rod. The crankshaft in the engine and its supporting main bearings and connecting rods form a rotation mechanism, which controls the movement of the piston and valve for a given time. The crankcase also includes oil pump, oil sump and other components to provide lubrication and cooling for the engine. The valve is another important component in the engine, which is to control the flow of fuel and air.The valve can be divided into intake valve and exhaust valve. The function of the intake valve is to allow the air and fuel mixture to enter the combustion chamber, while the exhaust valve is responsible for exhaust gas. The valve is constantly switched during the operation of the engine to ensure the normal operation of the engine. The piston is an up and down moving part in the cylinder. Its main function is to convert the vertical motion of the engine into horizontal motion through the piston rod and connecting rod. The piston is usually made of high-strength aluminum alloy, which needs to be repeatedly tortured by high temperature, high pressure and slight vibration. The connecting rod is a mechanism that transmits the movement of the piston and crankshaft. It is usually made of cast iron or steel. The connecting rod has extremely high strength and durability. Its main function is to convert the up and down movement of the piston into the rotation of the crankshaft by connecting the small head of the connecting rod to the crankshaft. The crankshaft is another key part of the engine. Its main function is to convert the up and down motion of the piston into rotational motion.Crankshafts are usually made of steel or cast iron. After a special design to improve strength and weight balance, it ensures that it still has extremely high stability and reliability during high-speed rotation. The camshaft is another key part of the engine. Its function is to control the exhaust and intake of the engine. The cam on the camshaft can drive the opening and closing of the valve, and then control the time and cycle of valve opening and closing. Camshafts are usually made of steel or cast iron and need to suffer from high-speed rotation, so they need special processing and surface treatment. The valve cap is a component that fixes the valve, usually made of metal or plastic, which can effectively prevent the valve from deviating from the track. The valve cap needs to be used with the valve seat and valve lever to ensure that the valve can open and close smoothly. In a word, the engine composition is the core component of the modern engine.They perform their respective functions and synergistically ensure the normal operation of the engine and provide continuous and efficient power for motor vehicles.

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