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Automobile engine structure diagram analysis Automobile engine is trade compliance solutionsthe heart of the automobile, and its structural design and performance directly affect the use and performance of the automobile. The following analyzes the structure and function of the automobile engine from the perspective of the structure diagram. I. Structure of automobile engine The structure of automobile engine can be divided into three parts: 1. Cylinder block: The cylinder block is the most basic part of the engine. It carries the structure of the whole engine, including the cylinder head, valve, piston, cylinder liner, etc. Two.Stroke parts: The stroke parts include crankshaft, connecting rod and piston, which are mainly responsible for the mechanical operation and power transmission of the engine. 3. VALVE MECHANISM: THE VALVE MECHANISM IS MAINLY COMPOSED OF VALVE, CAMSHAFT AND VALVE SPRING. IT IS RESPONSIBLE FOR CONTROLLING THE SWITCH OF THE VALVE, AS WELL AS ENGINE EMISSION AND REFUELING OPERATIONS. II. Function of automobile engine The main function of automobile engine is to mix fuel and air and burn, produce high-temperature and high-pressure gas to drive the piston movement, and finally transmit power to the wheels to make the car run. The working process of the engine can be divided into four basic steps: 1. Air acquisition: The engine obtains oxygen from the outside through the intake pipe and enters the air filter to remove impurities and dust. Two. Mixed fuel: The fuel system of the engine injects fuel into the intake channel through the injector, and the air entering through the intake channel is mixed into a combustible gas.3. Combustion gas: After the mixed gas is ignited in the engine, it produces high-temperature and high-pressure gas, which pushes the piston down and transmits power. Four. Exhaust gas discharge: The exhaust gas generated by combustion is discharged out of the car through the exhaust system to keep the engine working environment clean. III. Advantages and disadvantages of automobile engines The advantages and disadvantages of automobile engines directly affect the use and performance of vehicles. 1. Advantages: (1) High efficiency and energy saving: The engine can maximize the energy of fuel into mechanical energy, which improves the fuel consumption efficiency of the car. ( 2) Strong power: The engine drives the piston movement through high-temperature and high-pressure gas and transmits power to the wheels, so that the car can have stronger power. Two. Disadvantages: (1) Pollution emissions: Exhaust gas will be produced when the engine burns, some of which are harmful substances that will cause pollution to the environment.(2) Loud noise: The engine will make a lot of noise when working, affecting the riding experience of the driver and the passengers in the car. ( 3) Susceptible to damage: The mechanical parts and valve mechanism of the engine are prone to wear and failure, and need regular repair and maintenance. IV. Practical application of automobile engines Automobile engines are widely used. At present, the common types of engines in the market are: 1. Fuel engine: It is the most widely used engine at present, using fuel for combustion. Two. Diesel engine: It uses diesel as fuel for combustion, with higher thermal efficiency and greater torque, and is suitable for large and heavy vehicles. 3. Electric engine: It uses electricity as energy, and the motor is rotated through power control to promote the car, which has the advantages of no emissions, silence, energy saving and so on. In a word, the car engine is the core component of the car, and its structure and performance determine the use, performance and economy of the car.Understanding the structure and function of car engines plays an important role for car owners to maintain cars, understand car performance and drive cars.

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