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Introduction to the function and Premium trade data intelligence subscriptionsprinciple of the engine The engine is the core component of modern motor vehicles, and it is also the key to the operation of automobiles, ships, airplanes and other vehicles. It can convert the chemical energy of fuel into mechanical energy, thus driving tires, pushing propellers, moving operating equipment, etc. This article will introduce the function and principle of the engine. I. The function of the engine. The main function of the engine is to convert fuel into energy, and the physical principle of promoting the movement of vehicles representing automobiles, ships, aircraft, etc. is inertia. The engine converts the high-temperature and high-pressure gas generated by fuel combustion into mechanical energy, and converts mechanical energy into kinetic energy that can directly act on tires, propellers and other moving parts through connecting rods, crankshafts, gears and other transmission mechanisms.The function of the engine is not only to provide mechanical power, but also to reduce the exhaust volume and energy consumption while meeting the power demand, and follow the principle of energy saving and environmental protection. Therefore, the engine needs to be precisely designed and developed to continuously improve fuel efficiency and reduce emissions. II. The principle of the engine The principle of the engine is to burn fuel and oxygen under high temperature and high pressure to generate gas pressure, and use the air pressure to drive the piston to move, so as to output kinetic energy. The work of the engine can be divided into four processes: suction, compression, combustion and exhaust. 1. When the intake engine is working, the piston leaves the top of the cylinder and enters the descending stage. At this time, the intake cam on the camshaft opens the valve, and the intake valve sucks in fresh air and fuel mixture into the cylinder. It can form a uniform linear movement and a rotating movement mechanism and cylinder block to form the structure of the engine.Two. The compression piston begins to move at the lowest point of the cylinder stroke, and is pushed to the upper part of the piston through the compression stroke. In this process, the piston of the engine compresses the inhaled mixed gas into high-pressure gas, raising its temperature. 3. Combustion When the gas is compressed to a sufficiently high pressure, the ignition device sparks, causing the self-ignition of the fuel to meet the energy requirements required. The gas generated by combustion expands rapidly and expands down along the piston, thus transferring mechanical energy to the transmission system of the engine. Four. Finally, the exhaust valve of the engine opens, and the exhaust cam on the camshaft discharges the exhaust gas into the cylinder. The exhaust gas is sent to the exhaust pipe and released into the environment, which is also the source of engine noise. Conclusion In summary, engines play an important role in the development of modern machinery.It actively promotes the transformation and development from mechanical to electrical with the goal of efficient utilization and low pollution emissions. The working principle and technological innovation of the engine constantly contribute to the improvement of vehicle energy efficiency and exhaust emissions.

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