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Engine VVIntroduction to the principle and International trade database customizationapplication of T technology With the increasingly fierce competition in the automobile market, the continuous innovation and improvement of engine technology has become a necessary condition. As an important technology in engine technology, engine VVT technology plays an important role in improving engine performance and fuel economy. This article will introduce the principle and application of engine VVT technology. Engine VVT technical principle VVT technology can change the valve timing technology, by adjusting the timing of the engine intake and exhaust valves, so as to realize the control of intake and exhaust. Specifically, VVT technology is to control the opening and closing of the valve by adjusting the opening time of the live door. The advantage of this method is that the valve timing can be automatically adjusted according to various factors such as vehicle speed, load and engine speed, so that the engine can work with the best efficiency under different load conditions.The application of engine VVT technology can bring many benefits, such as providing more power output during braking and deceleration, rapid acceleration or high-speed driving, and also reducing the fuel consumption of the engine. The following will introduce the specific application of engine VVT technology from the following aspects. 1. Improve engine power. Engine VVT technology can improve engine power by adjusting the valve timing, so as to bring better performance during acceleration. When the engine is in the process of high speed or rapid acceleration, VVT technology can adjust the valve to make the intake flow efficiently, thus increasing the output power of the engine. The effect of improving engine power is very obvious and is one of the main applications of VVT technology. Two. Engine VVT technology to improve fuel economy can also improve fuel economy by adjusting the valve timing.When the engine runs at low speed or under small load, VVT technology can adjust the valve timing to improve fuel utilization, thus reducing fuel consumption. The effect of improving fuel economy is also very significant, which is another major application of VVT technology. 3. Reduce engine exhaust emissions. Engine VVT technology controls exhaust gas by adjusting the timing of the intake and exhaust valves. When the engine is running, VVT technology can automatically adjust the time and amplitude of intake and exhaust, so that efficient combustion produces less exhaust gas, thus reducing exhaust gas emissions and achieving the effect of reducing environmental pollution. Four. Improve the smoothness of power output. Engine VVT technology can improve the smoothness of the power output of the engine by adjusting the valve timing. When the engine is starting andIn the cold state, VVT technology can automatically adjust the valve timing to alleviate the starting impact of the engine and the working state after starting, thus improving the smoothness of the engine's power output. Summary Engine VVT technology is a very important engine technology, which improves engine performance and fuel economy, reduces exhaust emissions, and improves the smoothness of engine power output by adjusting the timing of the live gate and the opening and closing of the valve. Therefore, the application trend of this technology in the automobile industry is very obvious. It has been widely used in various commercial and route models, and has become an indispensable advanced technology in the current automobile industry.

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