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The OKX Wallet Sign upengine is the heart of the car, and it is the core part of the car.The engine converts heat energy into mechanical energy by mixing fuel and oxygen to burn, thus providing the driving force for the car. This article will introduce the working principle of the engine in detail. Part I: Composition of the engine The engine is mainly composed of cylinder, piston, crankshaft, connecting rod, valve, fuel system, ignition system and other components. The cylinder is the basic part of the engine, including the cylinder block and cylinder head. The piston moves up and down in the cylinder, so as to compress and discharge gas. The crankshaft and connecting rod transform the up and down movement of the piston into rotational motion. The valve is the part that controls the inlet and out of gas in the cylinder. The fuel system is responsible for adjusting the mixing ratio of fuel and air, and the ignition system is responsible for igniting at the right time to detonate the mixed gas. Part II: The working cycle of the engine The working cycle of the engine mainly includes four steps: intake, compression, combustion and exhaust.In the air intake stage, the valve opens and the piston moves down, so that the air enters the cylinder through the valve. In the compression phase, the valve closes and the piston moves up to compress the air to a smaller volume. In the combustion stage, the ignition system ignites at the right time, so that the mixed gas combustion releases a large amount of heat energy and pushes the piston down. In the exhaust stage, the piston moves up again to discharge the exhaust gas into the cylinder through the valve. Part 3: Engine fuel and ignition system The engine fuel system is mainly composed of fuel pump, fuel tank, throttle valve, fuel injector and other components. The fuel pump extracts the fuel from the fuel tank and sends it into the throttle valve. The throttle valve regulates the pressure and flow rate of the fuel, and the fuel injector injects the fuel into the cylinder and mixes it with the air. The ignition system is mainly composed of spark plugs, ignition wires, distributors, control modules and other components.When the ignition system receives the control signal, the distributor distributes the high-voltage electrical signal to each spark plug. The spark plug transmits the high-voltage electrical signal to the mixed gas through the ignition line, triggering a combustion reaction. Part 4: Performance parameters of the engine The performance parameters of the engine mainly include power, torque, fuel consumption and emissions. Engine power refers to the energy output by the engine per unit of time, usually expressed in horsepower or kilowatt. Torque refers to the torque generated by the engine per unit of time, which is usually expressed in ox and meters. Fuel consumption refers to the amount of fuel required for a car to drive per 100 kilometers. Emissions refer to the content of pollutants in automobile exhaust gases, including carbon monoxide, nitrogen oxides, small particles and volatile organic matter. Conclusion: As the core component of a car, the working principle of the engine has quite complex mechanism and operation mode.To master the composition list of the engine and the process of its working cycle, the information provided in this article is a necessary prerequisite for learning the engine.

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