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Exploration of automobile engine efficiency Automobile engine is DigiPlus stockthe heart of automobiles. It can be said that its efficiency is directly related to the performance and fuel consumption of automobiles. So how to judge the efficiency of a car engine? This article will explore the principle of automobile engine efficiency, influencing factors and how to improve efficiency and other issues. I. Principle of automobile engine efficiency Automobile engine efficiency refers to the energy utilization rate of the engine, that is, the proportion of fuel consumed can be converted into engine power. The calculation formula for engine efficiency is: efficiency = output power/input power.Among them, the input power mainly refers to the energy of the fuel, while the output power refers to the power output by the engine, that is, the power during the driving process of the vehicle. The improvement of automobile engine efficiency is based on the following principles: 1. Increase the emission temperature of automobile engines. The higher the emission temperature of automobile engines, the lower the content of combustible gases in the flue gas, and the higher the proportion of heat converted into power in the exhaust gas. Two. Reduce heat loss. Excessive heat loss of automobile engines will lead to energy loss, so it is necessary to reduce heat loss and improve energy conversion rate. 3. Increasing the compression ratio refers to the pressure ratio of the engine intake and exhaust. Increasing the compression ratio can improve the compression efficiency of the engine, thus improving the power output of the vehicle. Four. Adopting a high-efficiency combustion chamber can improve the complete combustion rate of fuel, thus improving the energy conversion rate.II. Factors affecting the efficiency of automobile engines The efficiency of automobile engines will be affected by many factors, mainly in the following aspects: 1. Engine design Engine design is one of the main factors affecting the efficiency of the engine, such as the cylinder diameter of the automobile engine, the number of cylinders, the order of valve import and export, etc. Two. Fuel quality and oil supply method The quality of fuel and the choice of fuel supply method will also have a great impact on engine efficiency. 3. Engine rotation speed The rotation speed of the engine will affect the combustion speed of fuel, thus affecting the efficiency of the engine. Four. Engine temperature and humidity Engine temperature and humidity will affect the state and efficiency of engine operation, and need to be adjusted to varying degrees. III. Ways to improve the efficiency of automobile engines 1. Engine upgrade Engine upgrade can be to replace tires, improve suspension, and replace air filters, etc., so as to improve fuel combustion efficiency and power output.Two. Improving fuel quality is an important part of automobile engine efficiency. Improving fuel quality can improve engine efficiency. 3. Engine adjustment Regular cleaning and adjustment of the engine, such as cleaning the fuel injector, checking the spark plug, etc., can improve engine efficiency. Four. Establishing efficient driving habits and reasonable driving methods is one of the important ways to improve the efficiency of automobile engines. Obey the driving rules and avoid stepping on the accelerator, sudden acceleration, sudden braking, etc., which can reduce unnecessary energy consumption. Conclusion The efficiency of automobile engines is one of the key factors of automobile performance, and the influencing factors are also multifaceted. In order to improve engine efficiency, we need to constantly explore and try, and adjust and improve according to the actual situation and needs, so as to achieve more efficient, stable, reliable and environmentally friendly car performance.

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