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The App to watch Champions League live freeengine is a machine responsible for converting chemical energy into mechanical energy. It is one of the core components of automobiles and machinery and equipment.Compared with other machines, engines have extremely high requirements in terms of energy efficiency and performance. In this article, we will make a detailed analysis of the basic structure of the engine. I. The basic structure of engines. Engines can be divided into many types, such as gasoline engines, diesel engines, rocket engines, etc., but their basic structures are similar. Next, let's take the internal combustion engine as an example to introduce the basic structure of the engine. 1. The cylinder, piston, connecting rod and crankshaft cylinder are one of the main parts of the engine. It is a mechanically closed space used to accommodate the gas after burning fuel and convert these gases into mechanical energy. The piston is a component that moves back and forth in the cylinder. It controls the gas state in the cylinder through spark plugs, valves in the engine cover, throttle and other devices. The connecting rod transforms the linear motion of the piston into the rotational motion of the crankshaft to generate power.Two. Fuel system The fuel system of the engine is a device responsible for introducing fuel into the interior of the engine. It includes a fuel tank, an oil pump, an injector, etc. Among them, the function of the oil pump is to send the fuel in the fuel tank to the engine through the high-pressure conveying pipe, while the fuel injector distributes the fuel to the corresponding cylinder for combustion. 3. Ignition system The ignition system of the engine is used to trigger the combustion of fuel, which includes spark plugs, ignition coils, distributors, etc. When a high-voltage arc is generated between the spark plug electrodes, the fuel will be ignited, thus releasing energy. II. Basic principle analysis The basic principle of the engine is to generate combustion after mixing fuel and oxygen in the combustion chamber, which then changes the volume of the gas in the cylinder, thus generating power. This process can be divided into four stages: intake, compression, combustion and exhaust.1. In the intake stage, the valve will open, allowing the air outside the engine to enter the cylinder and carry fuel to form an air mixture. Two. Compression After the valve is closed, the piston moves up and gradually reduces the volume in the cylinder. At this time, the fuel mixture is compressed to form a high-density gas. 3. When the combustion enters the combustion stage, the ignition system will transmit the electric spark to the fuel mixture through the spark plug to make it spontaneously ignite. At this time, the high-temperature gas released by combustion pushes the piston down and completes the energy conversion. Four. Finally, in the exhaust stage, the valve is opened again to discharge the exhaust gas, and then enter the next round of intake, compression, combustion and exhaust cycle. III. Conclusion The engine is a very important part of modern machinery and equipment. Its performance and efficiency directly determine the service life and use effect of the machine.In the basic structure of the engine, the cylinder and connecting rod constitute the core components of the engine, while the fuel system and ignition system provide it with fuel and the energy it needs. To make the engine more efficient, we need to start from many aspects, such as improving the fuel system and improving combustion efficiency.

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